TW200414140A - Method and apparatus for manufacturing an optical recording disk - Google Patents

Method and apparatus for manufacturing an optical recording disk Download PDF

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Publication number
TW200414140A
TW200414140A TW92135264A TW92135264A TW200414140A TW 200414140 A TW200414140 A TW 200414140A TW 92135264 A TW92135264 A TW 92135264A TW 92135264 A TW92135264 A TW 92135264A TW 200414140 A TW200414140 A TW 200414140A
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Taiwan
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curable resin
cover
ejection
liquid
discharge
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TW92135264A
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Chinese (zh)
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Tomoki Ushida
Seiichi Idezawa
Mamoru Usami
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Tdk Corp
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Abstract

The purpose of the present invention is to provide a method for manufacturing an optical recording disk, so as to form a light-transmission layer without bubbles generation and with excellent surface quality, which can be formed even under the situation that a radiation-curing resin such as high-viscosity ultraviolet curing resin, etc. is used, and spin-coating is performed to form the optical transmission layer. The method for manufacturing an optical recording disk is: dispose a circular substrate 2 formed of a recording layer 3 on the carrying stage 21 of spin-coating device; form a lid 55 having a grasping shaft for holding on it center part of its top, so as to jam the center hole of the center part of the substrate; rotate the carrying stage slowly, the jetting nozzle is located on the top surface of the lid, the distance between the jetting surface to jet the liquid ultraviolet curing resin 60 and the jetting opening of the jetting nozzle 41 is 0.5~ 5mm, so that the liquid ultraviolet curing resin is jetted from the jetting opening of the jetting nozzle.

Description

200414140 (1) 玖、發明說明 【發明所屬之技術領域】 本發明係關於光碟片之製造方法及裝置,更詳細言 之,係關於使用黏度高的紫外線硬化性樹脂等的放射線硬 化性樹脂,即使在藉由旋轉塗佈來形成光透過層的情況, 也沒有氣泡的混入,能夠形成所要求之表面性優異的光透 過層之光碟片之製造方法及裝置。 【先前技術】 近年來,作爲用來記錄大容量的數位資料的記錄媒 體,以CD或DVD爲代表的光碟片廣泛地被使用。 這些光碟片,可以大致分爲··如CD-ROM或DVD-ROM之類的不能夠燒錄或抹寫型式的所謂的R0M型光碟 片;如CD-R或DVD-R之類的雖然可以進行資料的燒 錄,但是無法進行資料的抹寫之型式的所謂的可燒錄型光 碟片;以及如CD-RW或DVD-RW之類的可以進行資料的 抹寫之型式的所謂的可抹寫型光碟片。 如眾所週知,對於ROM型光碟片而言,在製造階 段,一般而言,係藉由被形成在基板上的預置訊坑(Pre_ pit) ’來記錄資料;對於可抹寫型光碟片而言,例如作爲 記錄層的材料,一般係使用相變化材料,利用根據其相狀 態的變化所產生的光學特性的變化,來記錄資料。又,根 據需要,也有在記錄層的上下,設置電介質層,使其全體 發揮作爲記錄層的功能。 (2) (2)200414140 相對於此,對於可燒錄型光碟片而言’作爲記錄層的 材料,一般係使用花青系色素(cyanine)、 花青染料色素 (phthalocyanine)、偶氣色素(AZO)等的有機色素’利用其 化學變化所產生的光學特性的變化,來記錄資料。 近年來,已經開始希望能夠開發出可以比DVD更長 時間地記錄·再生之光碟片,來提高記錄密度。 對於光碟片而言,爲了提高記錄密度’需要使照射在 光碟片上之雷射光的光束點徑變小,雷射光的光束點徑, 與雷射光的波長λ和透鏡的開口數NA的比値成比例,所 以被要求使用波長λ短的雷射光和開口數ΝΑ大的透鏡, 來將資料記錄在光碟片中。 因此,對於記錄密度高的下一世代的光碟片而言,被 提案出:使用波長短的藍雷射光和開口數ΝΑ大的透鏡, 來將資料記錄在光碟片中的技術。 然而,在使用開口數ΝΑ大的透鏡的情況,焦點距離 變短,由於無法如CD或DVD般地經由光透過性基板, 將雷射光照射在記錄層上,所以變成需要在記錄層上,形 成光透過層,而經由光透過層,將雷射光照射在記錄層 上。 另一方面,若使透鏡的開口數NA變大,由於對於光 透過層的厚度不均的容許度變小,被要求均勻地設置光透 過層。 作爲在記錄層上形成光透過層的方法,被提案出··使 用旋轉塗佈裝置,將液狀的紫外線硬化樹脂,塗佈在被形 -6- (3) (3)200414140 成於基板上的記錄層上,該基板的訊號面已經形成有微坑 或溝槽,然後將紫外線照射在所形成的塗佈膜上,來使紫 外線硬化性樹脂硬化的方法。 然而’在使用旋轉塗佈裝置,將液狀的紫外線硬化樹 脂’塗佈在被形成於基板上的記錄層上的情況,由於在基 板以及記錄層,形成有中心孔,無法將液狀的紫外線硬化 性樹脂,吐在記錄層的中心部,因而所形成的塗佈膜的膜 厚容易發生不均勻的問題。 因此,在日本特開平1 1 -2 1 3 4 5 9號公報中,提出一種 使用蓋來塞住中心孔,而將液狀的紫外線硬化性樹脂吐在 蓋的中心部’再藉由旋轉塗佈裝置,使液狀的紫外線硬化 性樹脂展開,來形成塗佈膜的方法。 若根據此種方法,可以藉由旋轉塗佈裝置,使液狀的 紫外線硬化性樹脂展開,來形成均勻的塗佈膜;但是,雖 然可以形成具有均勻膜厚的光透過層,在此方法中,由於 蓋的整個表面被紫外線硬化性樹脂所覆蓋,在用來操控蓋 之臂等的構件上,難以避免會有紫外線硬化性樹脂附著, 因而臂等的構件受到紫外線硬化性樹脂的污染;進而,在 旋轉塗佈裝置的其他部分或旋轉塗佈裝置以外的製造裝 置,也有可能有紫外線硬化性樹脂附著,結果將會造成製 造工程全體的可靠度降低的問題。 藉由將臂等的構件加以洗淨,雖然可以解決此種問 題,但設置臂等的洗淨裝置,會有使製造工程複雜化、成 本上升的問題。 -7- (4) (4)200414140 因此’在日本特開2〇〇 號公報中,提出一種 :使用在其中央部形成有把持軸的蓋,從噴嘴朝向把 持軸的外周面’吐出紫外線硬化性樹脂,再藉由旋轉塗佈 裝置’使液狀的紫外線硬化性樹脂展開,來形成光透過層 的方法。 €藉由此方法’使用臂等的構件,把持被形成在蓋的 中央部之沒有紫外線硬化性樹脂附著的把持軸的部分,來 操控蓋’可以有效地防止由於紫外線硬化性樹脂而污染 臂、旋轉塗佈裝置的其他部分、旋轉塗佈裝置以外的裝置 等;又’藉由形成細的把持軸,能夠將液狀的紫外線硬化 性樹脂吐在蓋的大約中央部,在使用低黏度的液狀的紫外 線硬化性樹脂的情況,可以藉由旋轉塗佈裝置,使所吐出 的液狀的紫外線硬化性樹脂展開,形成具有均勻厚度的光 透過層,故是理想的。 然而’爲了要使用開口數NA大的對物透鏡,被要求 形成具有l〇〇//m程度厚度的光透過層;但是,作爲塗佈 液’在使用低黏度的液狀的紫外線硬化性樹脂的情況,難 以藉由旋轉塗佈裝置,形成具有100# m程度厚度的光透 過層;又,當藉由旋轉塗佈裝置來形成塗佈膜的時候,由 於離心力,從基板的周邊部飛散出去的紫外線硬化性樹脂 的量變多,發生沒效率的問題。 因此,爲了形成具有100//m程度厚度的光透過層, 作爲塗佈液,變成需要使用2000至1 0000百分泊(centi· poise)之高黏度的紫外線硬化性樹脂,因而在藉由旋 (5) (5)200414140 轉塗佈裝置將高黏度的紫外線硬化性樹脂塗佈在被形成於 基板上的記錄層上,來形成光透過層的情況,當將高黏度 的紫外線硬化性樹脂,吐在蓋上的時候,空氣會被捲入液 狀的紫外線硬化性樹脂中,在光透過層產生氣泡,而會有 ‘ 所生成的光碟片之品質降低的問題。 在將高黏度的液狀的紫外線硬化性樹脂,吐在以高速 旋轉中的蓋上之情況,空氣特別容易被捲入液狀的紫外線 硬化性樹脂中,因而容易在光透過層中形成氣泡,會有所 馨 生成的光碟片之品質顯著地降低的問題。 【發明內容】 因此,本發明的目的在於提供一種光碟片之製造方法 及裝置,即使在使用黏度高的紫外線硬化性樹脂等的放射 線硬化性樹脂,而藉由旋轉塗佈來形成光透過層的情況, 也能夠形成所期望之沒有氣泡混入、表面性優異的光透過 層。 參 本發明的發明人,爲了達成本發明的前述目的,經過 深入硏究的結果,發現藉由一邊控制前述吐出噴嘴的大約 垂直方向的位置,使得應該吐出液狀的放射線硬化性樹脂 的被吐出面和吐出噴嘴的吐出口之間的吐出距離成爲 ^ 〇.5mm至5mm,一邊從吐出噴嘴的吐出口,吐出液狀的放 . 射線硬化性樹脂,在吐出液狀的放射線硬化性樹脂時,可 以防止空氣捲入。 因此,本發明的前述目的,係藉由一種光碟片之製造 -9- (6) (6)200414140 方法來達成,該光碟片之製造方法的特徵爲: 將被形成有記錄層的圓形基板,設置在旋轉塗佈裝置 的載物台上,然後將在其頂部的中央部形成有可以把持的 把持軸之蓋,設置在前述基板上,塞住被形成在前述基板 的中央部之中心孔,接著一邊使前述載物台以低速旋轉, 一邊使應該吐出液狀的放射線硬化性樹脂的被吐出面和吐 出噴嘴的吐出口之間的吐出距離成爲 〇.5mm至5mm,來 使前述吐出噴嘴位於前述蓋的前述頂面的上方,而從前述 吐出噴嘴的前述吐出口,吐出液狀的放射線硬化性樹脂。 在本發明中,吐出距離係意味著吐出液狀的放射線硬 化性樹脂之吐出噴嘴的吐出口和被吐出面之間的距離;被 吐出面,包含:蓋的頂面之情況、以及藉由被吐在蓋的頂 面上之液狀的放射線硬化性樹脂所形成的放射性硬化性樹 脂膜的表面之情況。 吐出距離若超過5mm,當液狀的放射線硬化性樹 脂,從吐出噴嘴的吐出口,被吐在被吐出面上的時候,空 氣容易被捲入,而在藉由旋轉塗佈所生成的光透過層中, 氣泡混入而使得光碟片的品質降低;另一方面,當吐出距 離不到0.5mm的時候,吐出噴嘴有可能接觸到藉由被吐 在蓋的頂面上之液狀的放射線硬化性樹脂所形成的放射線 硬化性樹脂的膜的表面,因而在被形成於記錄層上的光透 過層的表面,有可能產生經脈狀的不均。 · 因此,需要一邊使載物台以低速旋轉,一邊使吐出距 離成爲0.5 m m至5 m m,來將液狀的放射線硬化性樹脂, -10- (7) (7)200414140 吐在蓋的頂面上或藉由被吐在蓋的頂面上之液狀的放射線 硬化性樹脂所形成的液狀的放射線硬化性樹脂的表面上; 若使的吐出距離成爲1mm至3 mm,而從吐出噴嘴的吐出 口,將液狀的放射線硬化性樹脂,吐在蓋的頂面上或藉由 被吐在蓋的頂面上之液狀的放射線硬化性樹脂所形成的液 狀的放射線硬化性樹脂的表面上,則可以得到更好的結 果。 如此,若根據本發明,由於係被構成:一邊使載物台 以低速旋轉,一邊使吐出距離成爲0.5 m m至5 m m,理想 爲1 mm至3 mm,來將液狀的放射線硬化性樹脂,吐在被 吐出面上,亦即吐在蓋的頂面上或藉由被吐在蓋的頂面上 之液狀的放射線硬化性樹脂所形成的液狀的放射線硬化性 樹脂的表面上;所以即使在使用黏度高的放射線硬化性樹 脂,而藉由旋轉塗佈來形成光透過層的情況,可以一邊確 實地防止:在光透過層的表面,由於吐出噴嘴的吐出口與 藉由被吐在蓋的頂面上之液狀的放射線硬化性樹脂所形成 的放射線硬化性樹脂膜接觸,所產生的經脈狀的不均發生 之可能性;一邊有效地防止:在吐出液狀的放射線硬化性 樹脂時,空氣被捲入液狀的放射線硬化性樹脂中的情況發 生;所以,能夠形成所期望之沒有氣泡混入的光透過層。 本發明的理想實施形態,係被構成:按照從前述吐出 噴嘴的前述吐出口,朝向前述蓋的頂面,開始吐出液狀的 放射線硬化性樹脂之後的經過時間,步進狀地控制前述吐 出噴嘴的前述吐出口的大約垂直方向的位置,而從前述吐 -11 - (8) (8)200414140 出噴嘴的前述吐出口,吐出液狀的放射線硬化性樹脂。 本發明的其他理想實施形態,係被構成:按照從前述 吐出噴嘴的吐出口,朝向前述蓋的頂面,開始吐出液狀的 放射線硬化性樹脂之後的經過時間,連續地控制前述吐出 噴嘴的前述吐出口的大約垂直方向的位置,而從前述吐出 噴嘴的前述吐出口,吐出液狀的放射線硬化性樹脂。 在本發明的更理想的實施形態中,前述液狀的放射線 硬化性樹脂,具有2000至1 0000百分泊的黏度。 修 在將黏度高的液狀的放射線硬化性樹脂,吐在蓋的頂 面上,再藉由旋轉塗佈裝置,使所吐出的液狀的放射線硬 化性樹脂展開,來形成光透過層的情況,當將液狀的放射 線硬化性樹脂,朝向蓋的頂面吐出的時候,空氣容易被捲 入液狀的放射線硬化性樹脂中,而在所生成的光透過層中 產生氣泡,成爲光碟片的品質降低的問題;但是,若根據 本發明的更理想之實施形態,由於係被構成:一邊使載物 台以低速旋轉,一邊使吐出距離成爲〇.5mm至5mm,理 想爲1 mm至3 mm,來將液狀的放射線硬化性樹脂,吐在 被吐出面上;所以即使在液狀的放射線硬化性樹脂爲具有 2000至1 0000百分泊之高黏度的情況,也可以一邊確實 地防止:在光透過層的表面,由於吐出噴嘴的吐出口與藉 由被吐在蓋的頂面上之液狀的放射線硬化性樹脂所形成的 放射線硬化性樹脂膜接觸,所產生的經脈狀的不均發生之 可能性;一邊有效地防止:在吐出液狀的放射線硬化性樹 脂時,空氣被捲入液狀的放射線硬化性樹脂中的情況發 -12- 200414140 Ο) 生;因此,能夠形成所期望之沒有氣泡混入的光透過層。 本發明的更理想的實施形態,係被構成:一邊使前述 載物台以5r.p.m至lOOr.p.m的速度旋轉,一邊從前述吐 出噴嘴的前述吐出口,將前述液狀的放射線硬化性樹脂, 吐在前述被吐出面上。 在將高黏度的液狀的紫外線硬化性樹脂,吐在以高速 旋轉中的蓋的頂面上之情況,空氣特別容易被捲入液狀的 紫外線硬化性樹脂中,因而氣泡容易被形成在所生成的光 透過層中,而有光碟片的品質顯著地降低的問題;但是若 根據本發明的理想實施形態,由於被構成:一邊使載物台 以5r.p.m至lOOr.p.m的速度旋轉,一邊使吐出噴嘴朝向 蓋的頂面,使得吐出距離成爲 0.5mm至 5mm,理想爲 1 mm至3 mm,而從吐出噴嘴的吐出□,將液狀的放射線 硬化性樹脂,吐在被吐出面上;所以即使在使用高黏度的 液狀的紫外線硬化性樹脂,藉由旋轉塗佈來形成光透過層 的情況,可以一邊確實地防止:在光透過層的表面,由於 吐出噴嘴的吐出口與藉由被吐在蓋的頂面上之液狀的放射 線硬化性樹脂所形成的放射線硬化性樹脂膜接觸,所產生 的經脈狀的不均發生之可能性;一邊有效地防止:在吐出 液狀的放射線硬化性樹脂時,空氣被捲入液狀的放射線硬 化性樹脂中的情況發生;所以,能夠形成所期望之沒有氣 泡混入的光透過層。 在本發明的更理想的實施形態中,係被構成:一邊使 前述載物台以lOr.p.m至50r.p.m的速度旋轉,一邊從前 -13- (10) (10)200414140 述吐出噴嘴的前述吐出口,將前述液狀的放射線硬化性樹 脂,吐在前述被吐出面上。 在將高黏度的液狀的紫外線硬化性樹脂,吐在以高速 旋轉中的蓋的頂面上之情況,空氣特別容易被捲入液狀的 紫外線硬化性樹脂中,因而氣泡容易被形成在所生成的光 透過層中,而有光碟片的品質顯著地降低的問題;但是若 根據本發明的理想實施形態,由於被構成:一邊使載物台 以lOr.p.m至50r.p.m的速度旋轉,一邊使吐出噴嘴朝向 盡的頂面,且位於吐出距離成爲0.5mm至5mm,理想爲 1mm至3mm的位置處,而從吐出噴嘴的吐出口,將液狀 的放射線硬化性樹脂,吐在被吐出面上;所以即使在使用 高黏度的液狀的紫外線硬化性樹脂,藉由旋轉塗佈來形成 光透過層的情況,可以一邊確實地防止:在光透過層的表 面,由於吐出噴嘴的吐出口與藉由被吐在蓋的頂面上之液 狀的放射線硬化性樹脂所形成的放射線硬化性樹脂膜接 觸,所產生的經脈狀的不均發生之可能性;一邊有效地防 止:在吐出液狀的放射線硬化性樹脂時,空氣被捲入液狀 的放射線硬化性樹脂中的情況發生;所以,能夠形成所期 望之沒有氣泡混入的光透過層。 在本發明的更理想的實施形態中,光碟片之製造方 法,其中進而具備:使前述載物台以高速旋轉,將被吐在 前述蓋的前述頂面上之前述液狀的放射線硬化性樹脂,展 開至前述記錄層上的步驟。 本發明的前述目的,係藉由一種光碟片之製造裝置來 -14- (11) (11)200414140 達成,該製造裝置的特徵爲: 具備:可以固定基板且可以旋轉的載物台; 蓋固定手段,將用來塞住被形成在前述基板的中央部 之中心孔的蓋,固定在已經被固定於前述載物台上的前述 · 基板上; 使前述載物台旋轉的載物台旋轉手段; 從吐出口,將液狀的放射線硬化性樹脂朝向前述蓋的 頂面吐出的吐出噴嘴; φ 使前述吐出噴嘴至少往大約垂直方向移動的吐出噴嘴 移動手段;及 控制手段,用來控制前述載物台旋轉手段和前述吐出 噴嘴移動手段; 前述控制手段,係被構成:按照從前述吐出噴嘴的前 述吐出口 ’朝向前述蓋的頂面,開始吐出液狀的放射線硬 化性樹脂之後的經過時間,控制前述吐出噴嘴移動手段, 來控制前述吐出噴嘴的大約垂直方向的位置。 馨 若根據本發明,光碟片之製造裝置,由於被構成: 具備:可以固定基板且可以旋轉的載物台; 蓋固定手段,將用來塞住被形成在基板的中央部之中 心孔的蓋,固定在已經被固定於載物台上的基板上; · 使載物台旋轉的載物台旋轉手段; 從吐出口,將液狀的放射線硬化性樹脂朝向蓋的頂面 吐出的吐出噴嘴; 使吐出噴嘴至少往大約垂直方向移動的吐出噴嘴移動 -15- (12) (12)200414140 手段;及 控制手段,用來控制載物台旋轉手段和吐出噴嘴移動 手段; 控制手段,係被構成:按照從吐出噴嘴的吐出口,朝 向蓋的頂面,開始吐出液狀的放射線硬化性樹脂之後的經 過時間,控制吐出噴嘴移動手段,來控制吐出噴嘴的大約 垂直方向的位置; 所以,可以一邊使載物台以低速旋轉,一邊使吐出噴 嘴朝向盡的頂面,且位於吐出距離成爲0.5mm至5mm, 理想爲1 m m至3 m m的位置處,而從吐出噴嘴的吐出口, 吐出液狀的放射線硬化性樹脂;所以即使在使用高黏度的 液狀的紫外線硬化性樹脂,藉由旋轉塗佈來形成光透過層 的情況,可以一邊確實地防止:在光透過層的表面,由於 吐出噴嘴的吐出口與藉由被吐在蓋的頂面上之液狀的放射 線硬化性樹脂所形成的放射線硬化性樹脂膜接觸,所產生 的經脈狀的不均發生之可能性;一邊有效地防止:在吐出 液狀的放射線硬化性樹脂時,空氣被捲入液狀的放射線硬 化性樹脂中的情況發生;所以,能夠形成所期望之沒有氣 泡混入的光透過層。 在本發明的更理想實施形態中,前述控制手段,係被 構成:一邊控制前述旋轉台旋轉手段,使前述載物台以低 速旋轉,一邊控制前述吐出噴嘴移動手段,使得應該吐出 液狀的放射線硬化性樹脂的被吐出面和前述吐出噴嘴的前 述吐出口之間的吐出距離成爲〇 . 5 mm至5 mm,來控制前 -16- (13) (13)200414140 述吐出噴嘴的大約垂直方向的位置。 在本發明的更理想實施形態中,前述控制手段,係被 構成.一邊控制則述旋轉台旋轉手段,使前述載物台以低 速旋轉,一邊控制前述吐出噴嘴移動手段,使得前述被吐 出面和前述吐出噴嘴的前述吐出口之間的吐出距離成爲 1 mm至3 mm,來控制前述吐出噴嘴的大約垂直方向的位 置。 在本發明的更理想實施形態中,前述控制手段,係被 構成:按照從前述吐出噴嘴的前述吐出口,朝向前述蓋的 頂面,開始吐出液狀的放射線硬化性樹脂之後的經過時 間,步進狀地控制前述吐出噴嘴的前述吐出口的大約垂直 方向的位置。 在本發明的更理想實施形態中,前述控制手段,係被 構成:按照從前述吐出噴嘴的前述吐出口,朝向前述蓋的 頂面,開始吐出液狀的放射線硬化性樹脂之後的經過時 間’連續地控制前述吐出噴嘴的前述吐出口的大約垂直方 向的位置。 在本發明中,作爲放射線硬化性樹脂,理想爲使用紫 外線硬化性樹脂、電子線硬化性樹脂等。 【實施方式】 (理想實施形態的說明) 以下,根據圖面,詳細地說明關於本發明的理想實施 形態。 -17- (14) (14)200414140 第1圖係表示藉由本發明的理想實施形態的光碟片之 製造方法所製造出來的光碟片之槪略立體圖;第2圖係在 第1圖的A所示的部分之槪略擴大剖面圖。 如第1圖所示,藉由本實施形態的光碟片之製造方法 所製造出來的光碟片1,具備:由聚碳酸酯等所形成的圓 形基板2 ;在光入射側的基板2的表面,藉由噴鍍等所形 成的記錄層3;及被形成在記錄層3的表面上之光透過層 4 〇 如第2圖所示,在基板2的光入射側的表面,當藉由 射出成形來形成基板2時,藉由噴鍍,形成預置溝槽 (Pre-Groove)5 〇 光透過層4,係在被形成於基板2上的記錄層3上, 藉由旋轉塗佈,形成液狀的紫外線硬化性樹脂的塗佈膜, 再將紫外線照射在塗佈膜上,使紫外線硬化性樹脂硬化而 形成。 如第1圖所示,在光碟片1的中央部,形成用來將光 碟片1設置在記錄·再生機器中的中心孔6 ;在中心孔6 的外側,形成用來將光碟片1設置在記錄·再生機器中的 夾緊區域7 ;在夾緊區域7,沒有形成記錄層3和光透過 層4。 第3圖係表示關於本發明的理想實施形態的光碟片之 製造裝置的重要部位之槪略立體圖;第4圖係在第3圖中 所示的光碟片之製造裝置的重要部位的槪略縱剖面圖。 如第3圖和第4圖所示,關於本實施形態的光碟片之 -18- (15) (15)200414140 製造裝置,係藉由旋轉塗佈裝置來構成;旋轉塗佈裝置 1 〇,具備:其直徑大約與光碟片Ϊ的直徑相等的載物台 21、被設置在載物台21的中央部之第1突出部22、及被 設置在第1突出部22的中央部之第2突出部23。 載物台21、第1突出部22及第2突出部23,藉由載 物台馬達(未圖示),構成可以一體地旋轉。 如第3圖和第4圖所示,第1突出部22,係載置著 相當於基板2上之已經形成有記錄層3的資料記錄單元的 夾緊區域7之區域的部分;在其表面上,形成複數個第! 吸氣口 24。第1吸氣泵(未圖示)與複數個第1吸氣口 24 連接,藉由使第1吸氣機構動作,被載置在第1突出部 22上的資料記錄單元,被吸引在第1突出部22的表面 上,而構成可以被固定在載物台21上。 第2突出部23的直徑,係對應將要被製造的光碟片 1的中心孔6的直徑,構成當將資料記錄單元載置在第1 突出部22上的時候,第2突出部2 3可以插入資料記錄單 元的中心孔6中。 如第3圖和第4圖所示,第2吸氣口 25被形成在第 2突出部23的中央部;% 2吸氣泵(未圖示)與第2吸氣口 25連接。 雖然未圖示在第3圖和第4圖中,旋轉塗佈裝置 1 〇 ’進而具備:第1臂,在其先端,具備擁有柔軟性的吸 引墊,用來吸引資料記錄單元的夾緊區域7,加以保持而 將其設置在旋轉塗佈裝置1 0的載物台2 1上,且吸引藉由 -19- (16) (16)200414140 旋轉塗佈而形成有紫外線硬化性樹脂的塗佈膜之被生成的 光碟片1的夾緊區域7,並加以保持,將其從旋轉塗佈裝 置1 0取出; 第2臂’用來保持蓋,應將其載置在已經被設置於載 物台2 1上之資料記錄單元上的規定位置處,並將蓋從已 經藉由旋轉塗佈而形成有紫外線硬化性樹脂的塗佈膜之被 生成的光碟片1 ’加以取去;以及將液狀的紫外線硬化性 樹脂,吐在蓋上的吐出噴嘴。 第5圖係旋轉塗佈裝置1 〇的控制系統、輸入系統及 驅動系統的方塊圖。 如第5圖所不,旋轉塗佈裝置10的控制系統,具 備·控制旋轉塗佈裝置1 0全體的動作之控制單元3 〇、 R Ο Μ 3 1和R A Μ 3 2 ;輸入系統則具備用來輸入各種資料的 鍵盤3 3。 又,如第5圖所示,旋轉塗佈裝置1 〇的驅動系統, 具備:使載物台21旋轉的載物台馬達34 ;第丨吸氣栗 3 5 ;第2吸氣泵3 6 ;使作爲用來吸引資料記錄單元並將 其搬迗的弟1臂37移動之第1臂移動手動38;使作爲用 來把持室並將其搬送的第2臂39移動之第2臂移動手段 4 〇 ;使吐出噴嘴4 1,在液狀的紫外線硬化性樹脂可以從 吐出噴嘴4 1朝向蓋的頂面被吐出的吐出位置、和從吐出 位置退避的退避位置之間移動的吐出噴嘴馬達42;使液 狀的紫外線硬化性樹脂從吐出噴嘴4 1朝向蓋的頂面吐出 之吐出噴嘴驅動手段43 ;以及紫外線燈44。 •20 - (17) (17)200414140 在ROM3 1中,記憶著預先根據實驗而決定出來的資 料表格,該表格顯示:使液狀的紫外線硬化性樹脂從吐出 噴嘴4 1朝向蓋的頂面吐出時的載物台2 1的旋轉數、要從 吐出噴嘴4 1吐出的液狀的紫外線硬化性樹脂的黏度、從 吐出噴嘴4 1被吐出的液狀的紫外線硬化性樹脂的吐出速 度、將液狀的紫外線硬化性樹脂從吐出噴嘴4 1朝向蓋的 頂面吐出之後的經過時間、吐出噴嘴4 1應該定位的位 置、以及吐出噴嘴41之應該定位的時間之關係。 藉由如上述般地構成的旋轉塗佈裝置1〇,當要製造 光碟片1時,首先,由操作人員將關於使液狀的紫外線硬 化性樹脂從吐出噴嘴4 1朝向蓋的頂面吐出時的載物台的 旋轉數、要從吐出噴嘴4 1吐出的液狀的紫外線硬化性樹 脂的黏度、從吐出噴嘴4 1被吐出的液狀的紫外線硬化性 樹脂的吐出速度和從吐出噴嘴4 1被吐出的液狀的紫外線 硬化性樹脂的吐出量之資料,連同啓動訊號,經由鍵盤 3 3,加以輸入。 在本實施形態中,由操作人員利用鍵盤33輸入以下 的設置値,亦即:使液狀的紫外線硬化性樹脂從吐出噴嘴 41朝向蓋的頂面吐出時的載物台的旋轉數,爲2〇r.p m ; 要從吐出噴嘴4 1吐出的液狀的紫外線硬化性樹脂的黏 度’爲5000百分泊(centi_p〇ise);從吐出噴嘴ο被吐出 的液狀的紫外線硬化性樹脂的吐出速度,爲〇15毫升/ 秒’從吐出噴嘴4 1被吐出的液狀的紫外線硬化性樹脂的 吐出量爲2毫升。 -21 - (18) (18)200414140 關於載物台2 1的旋轉數、要從吐出噴嘴4〗吐出的液 狀的紫外線硬化性樹脂的黏度、從吐出噴嘴4〗被吐出的 液狀的紫外線硬化性樹脂的吐出速度和從吐出噴嘴4 1被 吐出的液狀的紫外線硬化性樹脂的吐出量,以及啓動訊 號,則被輸入控制單元3 0中。 控制單兀3 0,一旦收到關於載物台2 1的旋轉數、要 從吐出噴嘴4 1吐出的液狀的紫外線硬化性樹脂的黏度、 從吐出噴嘴4 1被吐出的液狀的紫外線硬化性樹脂的吐出 速度和從吐出噴嘴4 1被吐出的液狀的紫外線硬化性樹脂 的吐出量,以及啓動訊號,則將關於載物台2 1的旋轉 數、要從吐出噴嘴4 1吐出的液狀的紫外線硬化性樹脂的 黏度、從吐出噴嘴4 1被吐出的液狀的紫外線硬化性樹脂 的吐出速度和從吐出噴嘴4 1被吐出的液狀的紫外線硬化 性樹脂的吐出量之資料,記憶在RAM32中,同時根據這 些資料,算出紫外線硬化性樹脂的吐出時間。 控制單兀3 0 ’進而從被記憶在R 〇 μ 3 1中的表格,讀 出:第1吐出位置資料,此資料係關於將液狀的紫外線硬 化性樹脂,從吐出噴嘴4 1,朝向蓋的頂面開始吐出時, 吐出噴嘴4 1應該定位的第1吐出位置;第2吐出位置資 料,此資料係關於載物台2 1大約旋轉一圈,而在藉由被 吐出在蓋的頂面上之液狀的紫外線硬化性樹脂所形成的紫 外線硬化性樹脂膜的表面上,當將液狀的紫外線硬化性樹 脂,從吐出噴嘴41吐出時,吐出噴嘴41應該定位的第2 吐出位置;第3吐出位置資料,此資料係關於載物台2 j •22- (19) (19)200414140 大約旋轉二圈’而在藉由被吐出在蓋的頂面上之液狀的紫 外線硬化性樹脂所形成的紫外線硬化性樹脂膜的表面上, 當將液狀的紫外線硬化性樹脂,從吐出噴嘴4 1吐出時, 吐出噴嘴4 1應該定位的第3吐出位置;第4吐出位置資 料,此資料係關於載物台2 1大約旋轉三圈,而在藉由被 吐出在蓋的頂面上之液狀的紫外線硬化性樹脂所形成的紫 外線硬化性樹脂膜的表面上,當將液狀的紫外線硬化性樹 脂,從吐出噴嘴4 1吐出時,吐出噴嘴4 1應該定位的第4 吐出位置;以及第5吐出位置資料,此資料係關於載物台 2 1大約旋轉四圈,而在藉由被吐出在蓋的頂面上之液狀 的紫外線硬化性樹脂所形成的紫外線硬化性樹脂膜的表面 上,當將液狀的紫外線硬化性樹脂,從吐出噴嘴4 1吐出 時,吐出噴嘴4 1應該定位的第5吐出位置;使這些資料 記憶在RAM32中。 進而,控制單元3 0,根據關於載物台· 2 1的旋轉數、 要從吐出噴嘴4 1吐出的液狀的紫外線硬化性樹脂的黏 度、以及從吐出噴嘴4 1被吐出的液狀的紫外線硬化性樹 脂的吐出速度和從吐出噴嘴4 1被吐出的液狀的紫外線硬 化性樹脂的吐出量之資料,算出將吐出噴嘴4 1定位的時 間,而記憶在RAM32中。 同時,控制單元3 0,將第1驅動訊號,輸出至第1 臂移動手動38,而藉由第1臂37的吸引墊(未圖示),吸 引基板2、及具有利用濺鍍而被形成在基板2上的記錄層 3之資料記錄單元,使其設置在旋轉塗佈裝置1 0的載物 -23- (20) (20)200414140 台21上。 資料記錄單元’其夾緊區域7藉由第1臂3 7而被吸 引、搬送,且被設置在旋轉塗佈裝置1 0的載物台2 1上, 其記錄層3位於上方,且第2突出部23可以嵌合在其中 心孔6中。 資料記錄單元,一旦被設置在旋轉塗佈裝置1 〇的載 物台2 1上,控制單元3 0,則將退避訊號輸出至第1臂栘 動手動3 8,使第1臂3 7從載物台21上退避;同時,控 制單元3 0,將作動訊號輸出至第1吸氣泵3 5,使第1吸 氣泵3 5作動。 結果,被載置在第1突出部22上的基板2,被吸引 在第1突出部22的表面上而被固定在載物台21上。 第6圖係表示資料記錄單元被固定在旋轉塗佈裝置的 載物台上的狀態之槪略剖面圖。 接著,控制單元3 0,將第1驅動訊號輸出至第2臂 移動手段40,藉由第2臂3 9,將蓋載置於已經被設置在 載物台2 1上的資料記錄單元5 〇上的規定位置處。 第7圖係蓋的槪略立體圖;第8圖係第7圖中所示的 蓋的槪略中央剖面圖。 如第7圖和第8圖所示,在本實施形態所使用的蓋 5 5 ’具備:其平面形狀爲圓形,而其側面的投影形狀大約 爲梯形的傘部5 6 ;被形成在傘部5 6的頂面,從傘部5 6 的頂面中心,往傘部5 6的軸線方向延伸的支持軸5 7 ;以 及被形成在傘部5 6的底面,從傘部5 6的底面中心,往傘 -24· (21) (21)200414140 部5 6的軸線方向延伸的大約圓柱狀的突起部5 8。 如第7圖和第8圖所示,當藉由旋轉塗佈,而將紫外 線硬化性樹脂塗佈在資料記錄單元5 0的表面上時,爲了 防止紫外線硬化性樹脂,由於毛細管現象而進入蓋5 5的 · 傘部5 6的底面和基板2之間,而在蓋5 5的傘部5 6的底 面,形成凹部5 6 a。 蓋5 5係由金屬所形成。 傘部5 6的直徑,係被設定成:比要製造的光碟片1 鲁 的中心孔6的直徑大,且在要製造的光碟片1的夾緊區域 7之外徑以下。 又,蓋5 5的突起部5 8,其直徑係被形成稍小於旋轉 塗佈裝置10的第2吸氣口 25的內徑。 蓋5 5,利用第2臂3 9,其支持軸5 7被把持住,而構 成可以被搬送;而當被載置於已經被設置在載物台21上 的資料記錄單元5 0上之時,其突起部與旋轉塗佈裝置1 〇 的第2吸氣口 2 5嵌合,構成可以定位在規定位置處。 φ 第9圖係表不盍5 5被設置在已經被設置於載物台2 1 上的資料記錄單元5 0的規定位置上的狀態之槪略剖面 圖。 在此,蓋5 5,係被設置在資料記錄單元5 0上,其傘 ‘ 部5 6的周邊部,位於基板2的周邊部的同心圓上。 蓋55 —旦被設置在資料記錄單元5〇上,控制單元 3 0則將退避訊號輸出至第2臂移動手段4 〇,使第2臂3 9 從載物台2 1上退避;同時,控制單元3 〇,將作動訊號輸 -25- (22) (22)200414140 出至第2吸氣泵3 6,使第2吸氣泵3 6作動。 結果,嵌合在旋轉塗佈裝置1 〇的第2吸氣口 2 5中的 蓋5 5的突起部5 8,被吸引,於是蓋5 5被固定在資料記 錄單元50上。 一旦第1吸氣泵35作動,而蓋55被固定在資料記錄 單元5 0上,控制單元3 0,則根據被記憶在RAM3 2中之 關於載物台2 1的旋轉數之資料,將第1驅動訊號輸出至 載物台馬達3 4,使載物台馬達3 4作動,而使載物台2 1、 第1突出部22、及第2突出部23,一體地以20r.p.m的 速度’進行旋轉。結果,被固定在載物台2 1上的資料記 錄單元50、及被固定在資料記錄單元50上的蓋55,也與 載物台21、第1突出部22、及第2突出部23,一起以 20r.p.m的速度,進行旋轉。 接著,控制單元30,讀出被記憶在RAM32中的第1 吐出位置資料,然後根據該讀出的第1吐出位置資料,產 生第1吐出噴嘴定位訊號,然後輸出至吐出噴嘴馬達 42,使吐出噴嘴4 1移動置第1吐出位置,例如移動至其 吐出距離亦即吐出噴嘴4 1的吐出口和應該吐出液狀的紫 外線硬化性樹脂之被吐出面也就是蓋5 5的傘部5 6之頂面 之間的距離,爲4mm的位置處。 一旦吐出噴嘴4 1被移動至第1吐出位置,控制單元 3 〇則將吐出訊號輸出至吐出噴嘴驅動手段43,而從吐出 噴嘴4 1,將具有黏度爲5 000百分泊的液狀的紫外線硬化 性樹脂6 0,以0 · 1 5毫升/秒的吐出速度,吐在蓋5 5的傘 -26- (23) (23) 200414140 部5 6的頂面上。 在本實施形態中,當開始將液狀的紫外線硬化性樹脂 6 〇,從吐出噴嘴41吐在蓋5 5的傘部5 6的頂面上之時, 由於係構成將吐出噴嘴4 1保持在第1吐出位置處,也就 是保持在吐出噴嘴41的吐出口和應該吐出液狀的紫外線 硬化性樹脂之被吐出面也就是蓋5 5的傘部5 6之頂面之間 的距離,爲4mm的位置處,然後從吐出噴嘴41,將液狀 的紫外線硬化性樹脂6 0,吐在蓋5 5的傘部5 6的頂面 上,所以當從吐出噴嘴4 1將液狀的紫外線硬化性樹脂60 吐在蓋5 5的傘部5 6的頂面上之時,可以有效地防止:空 氣被捲入液狀的紫外線硬化性樹脂60中,而在所生成的 光透過層4中,混入氣泡的情況發生。 如此,在以20r.p.m的速度進行旋轉的蓋55的傘部 56的頂面上,若從吐出噴嘴41以0.15毫升/秒的吐出速 度,吐出液狀的紫外線硬化性樹脂60,則由於液狀的紫 外線硬化性樹脂60,具有5000百分泊之高黏度,所以在 吐出噴嘴41的吐出口正下方之蓋55的傘部56的頂面 上’會形成大約2.5mm厚度的液狀的紫外線硬化性樹脂 6 0的膜;液狀的紫外線硬化性樹脂6 0,不會發生斷液, 連接被形成在蓋5 5的傘部5 6的頂面上的液狀的紫外線硬 化性樹脂6 0的膜’而從吐出噴嘴4〗的吐出口被吐出來。 第10圖係表示具有5 000百分泊之黏度的液狀的紫外 線硬化性樹脂6 0,從位於第1吐出位置的吐出噴嘴4 1, 朝向蓋5 5的傘部5 6的頂面,被吐出的狀態的槪略剖面 -27- (24) (24)200414140 圖。 因此,如第1 0圖所示,液狀的紫外線硬化性樹脂6 0 開始吐在蓋5 5的傘部5 6的頂面上之後,液狀的紫外線硬 化性樹脂6 0,藉由先前從吐出噴嘴4 1被吐出的液狀的紫 外線硬化性樹脂6 0,而變成從吐出噴嘴4 1被吐在被形成 在蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化性樹脂 6 〇的膜的表面上,於是液狀的紫外線硬化性樹脂6 〇的膜 的表面,變成應該吐出液狀的紫外線硬化性樹脂之被吐出 面’而吐出噴嘴4 1的吐出口和被吐出面之間的吐出距離 爲 1.5mm ° 從吐出噴嘴4 1,將液狀的紫外線硬化性樹脂60開始 吐在蓋5 5的傘部5 6的頂面上之後,至載物台21將要旋 轉一圈爲止之前,吐出噴嘴4 1,係被保持在:與蓋5 5的 傘部5 6的頂面之間的距離爲4 m m,而與被吐出面之間的 距離爲1 . 5 mm之第1吐出位置處。 如此’在本實施形態中,由於被構成··液狀的紫外線 硬化性樹脂6 0,從吐出噴嘴4 1,被吐在蓋5 5的傘部5 6 的頂面上,而在蓋5 5的傘部5 6的頂面上,形成液狀的紫 外線硬化性樹脂6 0的膜之後,吐出噴嘴4 1係被保持成其 吐出口與應該吐出液狀的紫外線硬化性樹脂60的被吐出 面也就是液狀的紫外線硬化性樹脂6 0的膜的表面之間的 距離爲1.5mm之第1吐出位置處,於是液狀的紫外線硬 化性樹脂6 0,可以從吐出噴嘴4 1,吐在被形成在蓋5 5的 傘部5 6的頂面上之液狀的紫外線硬化性樹脂60的膜的表 -28- (25) (25)200414140 面上;所以,吐出噴嘴4 1的吐出口,不會接觸被形成在 蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化性樹脂60 的膜,因此,可以確實地防止:由於吐出噴嘴41的吐出 口,接觸到被形成在蓋5 5的傘部5 6的頂面上之液狀的紫 外線硬化性樹脂60的膜,所造成之在被形成於記錄層3 上的光透過層4中,筋脈狀的不均發生的可能性。 又,在本實施形態中,由於被構成:液狀的紫外線硬 化性樹脂60,從吐出噴嘴41,被吐在蓋55的傘部56的 頂面上,而在蓋5 5的傘部5 6的頂面上,形成液狀的紫外 線硬化性樹脂6 0的膜之後,吐出噴嘴4 1係被保持成其吐 出口與應該吐出液狀的紫外線硬化性樹脂6 0的被吐出面 也就是液狀的紫外線硬化性樹脂6 0的膜的表面之間的距 離爲1 · 5 mm之第1吐出位置處,於是液狀的紫外線硬化 性樹脂60,可以從吐出噴嘴4〗,吐在被形成在蓋5 5的傘 部5 6的頂面上之液狀的紫外線硬化性樹脂6 〇的膜的表面 上;所以,當將液狀的紫外線硬化性樹脂60,從吐出噴 嘴4 1,吐在液狀的紫外線硬化性樹脂60的膜的表面上之 時’可以有效地防止:空氣被捲入液狀的紫外線硬化性樹 脂6 0中,而在所生成的光透過層4中,混入氣泡的情況 發生。 自開始從吐出噴嘴4 1,將液狀的紫外線硬化性樹脂 6 〇吐在蓋5 5的傘部5 6的頂面上之後算起,若載物台2 j 旋轉一圈,則吐出噴嘴4 1的吐出口,到達面對液狀的紫 外線硬化性樹脂6 0最初從吐出噴嘴4 1被吐在蓋5 5的傘 -29- (26) (26)200414140 部5 6的頂面上的部分。 因此,在面對吐出噴嘴41的吐出口之蓋5 5的傘部 5 6的頂面上,已經形成了液狀的紫外線硬化性樹脂60的 膜;又,由於被吐在蓋5 5的傘部5 6的頂面上之液狀的紫 外線硬化性樹脂60,被整平而展開,所以在蓋55的傘部 5 6的頂面,液狀的紫外線硬化性樹脂的吐出開始之後, 從載物台2 1將要旋轉一圈開始,吐出噴嘴4 1的吐出口, 便不是面對蓋55的傘部56的頂面,而是變成面對藉由在 液狀的紫外線硬化性樹脂60的吐出開始之後被吐出的液 狀的紫外線硬化性樹脂60,而被形成在蓋55的傘部56 的頂面上之液狀的紫外線硬化性樹脂60的膜的表面。 另一方面,如前所述,液狀的紫外線硬化性樹脂60 開始吐在蓋5 5的傘部5 6的頂面上之後,由於液狀的紫外 線硬化性樹脂6 0,藉由先前剛從吐出噴嘴4 1被吐出的液 狀的紫外線硬化性樹脂6 0,而變成從吐出噴嘴4 1吐在被 形成於蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化性樹 脂6 0的膜的表面上,所以從載物台2 1將要旋轉一圈開 始,液狀的紫外線硬化性樹脂60,係變成從吐出噴嘴4 i 被吐在:藉由從液狀的紫外線硬化性樹脂60開始吐在蓋 5 5的傘部5 6的頂面上算起,到載物台2 i大約旋轉一圈 爲止的期間,從吐出噴嘴4 1被吐出的液狀的紫外線硬化 性樹脂60所形成的液狀的紫外線硬化性樹脂6〇的膜的表 面上’也就是藉由先前剛從吐出噴嘴4 1被吐出的液狀的 紫外線硬化性樹脂60所形成的液狀的紫外線硬化性樹脂 -30- (27) (27)200414140 6 0的膜的表面上;所以,從液狀的紫外線硬化性樹脂6 〇 開始吐在蓋5 5的傘部5 6的頂面上算起,到載物台2 1大 約旋轉一圈爲止的期間,藉由從吐出噴嘴4 1被吐出的液 狀的紫外線硬化性樹脂60所形成的液狀的紫外線硬化性 樹脂6 0的膜的表面,也就是藉由先前剛從吐出噴嘴4 I被 吐出的液狀的紫外線硬化性樹脂60所形成的液狀的紫外 線硬化性樹脂6 0的膜的表面,係成爲被吐出面。 在此,如前所述,若液狀的紫外線硬化性樹脂6〇, 從吐出噴嘴4 1,以0 · 1 5毫升/秒的吐出速度,吐在以 2 Or ·ρ·ιη的速度旋轉中的蓋55的傘部56的頂面上,則在 吐出噴嘴41的吐出口正下方的蓋55的傘部56的頂面 上’形成厚度大約爲2 · 5 m m的液狀的紫外線硬化性樹脂 6 0的膜’而隨者載物台2 1的旋轉,由於液狀的紫外線硬 化性樹脂6 0的膜被整平’所以液狀的紫外線硬化性樹脂 6 0的膜厚減少成大約2 mm ;又,當液狀的紫外線硬化性 樹脂6 0,從吐出噴嘴4 1 ’以〇 · 1 5毫升/秒的吐出速度, 吐在被形成於以20r ·ρ·ιη的速度旋轉中的蓋55的傘部56 的頂面上之液狀的紫外線硬化性樹脂60的膜的表面上 時’所形成的液狀的紫外線硬化性樹脂60的膜厚,與液 狀的紫外線硬化性樹脂6 0被吐在蓋5 5的傘部5 6的頂面 上之情況相比’其厚度較小,大約變成2mm。 因此,從載物台2 1將要旋轉一圈開始,液狀的紫外 線硬化性樹脂6 0,變成從吐出噴嘴4 1被吐在已經被形成 於室5 5的傘部5 6的頂面上之厚度大約爲4 m m的液狀的 -31 - (28) (28) 200414140 紫外線硬化性樹脂60的膜的表面上。 結果,當將吐出噴嘴41保持在從蓋5 5的傘部5 6的 頂面算起的距離爲4mm之第1吐出位置,而從吐出噴嘴 4 1吐出液狀的紫外線硬化性樹脂60時,吐出噴嘴4 1的 吐出口有可能會接觸到被形成於正下方的液狀的紫外線硬 化性樹脂60的膜,而在被形成於記錄層3上的光透過層 4的表面,產生經脈狀的不均。 於是,在本實施形態中,控制單元3 0,讀出被記憶 φ 在RAM32中的第2吐出位置資料,根據第2吐出位置資 料’生成第2吐出噴嘴定位訊號,再按照被記憶在 RAM32中的將吐出噴嘴41定位的時序,在開始將液狀的 紫外線硬化性樹脂6 0吐在蓋5 5的傘部5 6的頂面上之 後,於載物台2 1將要旋轉一圈之前,將第2吐出噴嘴定 位訊號,輸出至吐出噴嘴馬達4 2,使吐出噴嘴4 1移動至 第2吐出位置,例如移動至僅比第1吐出位置更加地離開 蓋55的傘部56的頂面2mm之位置,亦即移動至與蓋55 φ 的傘部5 6的頂面之間的距離爲6 m m的位置處。 結果,從載物台2 1將要旋轉一圈開始,吐出噴嘴4 1 與被形成在蓋55的傘部56的頂面上之厚度大約爲4mm 的液狀的紫外線硬化性樹脂6 0的膜的表面之間的吐出距 ’ 離,被保持在大約2mm,而液狀的紫外線硬化性樹脂 60 ’則從吐出噴嘴41被吐在已經被形成於蓋55的傘部 5 6的頂面上之厚度大約爲4 m m的液狀的紫外線硬化性樹 脂6 0的膜的表面上。 -32- (29) (29)200414140 如此,在本實施形態中,由於被構成:自液狀的紫外 線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出口,被吐在已 經被形成於蓋55的傘部56的頂面上之厚度大約爲4mm 的液狀的紫外線硬化性樹脂60膜的表面上,亦即從載物 台2 1將要旋轉一圈的時候開始,吐出噴嘴41便被保持 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲4mm之液狀的紫外線硬化性樹 脂60的膜的表面之間的距離,大約爲2mm的第2吐出位 置處;而液狀的紫外線硬化性樹脂60,則可以從吐出噴 嘴41的吐出口,吐在已經被形成於蓋5 5的傘部5 6的頂 面上之厚度大約爲4mm的液狀的紫外線硬化性樹脂60的 膜的表面上;所以吐出噴嘴4 1的吐出口,並不會接觸被 形成在蓋5 5的傘部5 6的頂面上之厚度大約爲4mm的液 狀的紫外線硬化性樹脂6 0的膜,因此可以確實地防止: 由於吐出噴嘴41的吐出□,接觸被形成在蓋5 5的傘部 5 6的頂面上之液狀的紫外線硬化性樹脂6 〇的膜,而在被 形成在記錄層3上的光透過層4,發生經脈狀的不均的可 能性。 進而’在本實施形態中,由於被構成:自液狀的紫外 線硬化性樹脂60變成從吐出噴嘴4 1的吐出□,被吐在已 經被形成於蓋55的傘部56的頂面上之厚度大約爲4mm 的液狀的紫外線硬化性樹脂60膜的表面上,亦即從載物 台2 1將要旋轉一圈的時候開始,吐出噴嘴4 1便被保持 -33· (30) 200414140200414140 (1) Description of the invention [Technical field to which the invention belongs] The present invention relates to a method and an apparatus for manufacturing an optical disc, and more specifically, it relates to a radiation-curable resin using a highly viscous ultraviolet-curable resin, etc. In the case where the light transmission layer is formed by spin coating, there is no mixing of air bubbles, and a method and an apparatus for producing an optical disc having a required light transmission layer with excellent surface properties can be formed. [Prior Art] In recent years, as a recording medium for recording large-capacity digital data, optical discs typified by CDs or DVDs have been widely used. These optical discs can be roughly divided into so-called ROM-type optical discs, such as CD-ROM or DVD-ROM, which cannot be burned or rewritten; such as CD-R or DVD-R can be The so-called rewritable optical discs in which data can be burned, but the data cannot be written; and the so-called rewritable types in which data can be written, such as CD-RW or DVD-RW. Writing discs. As is well known, for ROM-type optical discs, in the manufacturing stage, generally, data is recorded by a preset pit (Pre_pit) formed on a substrate; for rewritable optical discs, For example, as the material of the recording layer, a phase change material is generally used, and the data is recorded by using changes in optical characteristics according to changes in its phase state. If necessary, a dielectric layer may be provided above and below the recording layer so that the entire layer functions as a recording layer. (2) (2) 200414140 In contrast, for recordable optical discs, as the material of the recording layer, cyanine pigments, cyanocyanine pigments, and azo pigments ( Organic pigments such as AZO) record data using changes in optical characteristics caused by chemical changes. In recent years, development of optical discs that can be recorded and reproduced for a longer period of time than DVDs has been expected to increase the recording density. For optical discs, in order to increase the recording density, it is necessary to reduce the beam spot diameter of the laser light irradiated on the optical disc. Therefore, it is required to use laser light with a short wavelength λ and a lens with a large number of openings NA to record data on the optical disc. Therefore, for the next-generation optical disc with a high recording density, a technique of recording data on the optical disc using blue laser light with a short wavelength and a lens with a large number of openings NA has been proposed. However, when a lens with a large number of openings NA is used, the focal distance becomes short, and since it is not possible to irradiate laser light on the recording layer through a light-transmitting substrate like a CD or DVD, it becomes necessary to form on the recording layer. The light transmitting layer radiates laser light on the recording layer through the light transmitting layer. On the other hand, if the number of openings NA of the lens is increased, the tolerance for uneven thickness of the light transmitting layer is reduced, and it is required to provide the light transmitting layer uniformly. As a method for forming a light-transmitting layer on a recording layer, a liquid coating of a UV-curing resin in a liquid form using a spin coating device is applied to a substrate-6- (3) (3) 200414140 formed on a substrate The recording layer of the substrate has micropits or grooves formed on the signal surface of the substrate, and then ultraviolet rays are irradiated on the formed coating film to harden the ultraviolet curable resin. However, in the case where the liquid ultraviolet curable resin is applied to a recording layer formed on a substrate using a spin coating device, the liquid ultraviolet rays cannot be applied because a central hole is formed in the substrate and the recording layer. Since the curable resin is ejected to the center portion of the recording layer, the thickness of the formed coating film is prone to non-uniformity. Therefore, in Japanese Patent Application Laid-Open No. 1 1 -2 1 3 4 5 9, a cap is used to plug the central hole, and a liquid ultraviolet curable resin is spit on the central portion of the cap. A cloth device is a method for developing a liquid ultraviolet curable resin to form a coating film. According to this method, a uniform coating film can be formed by developing a liquid ultraviolet curable resin by a spin coating device; however, a light transmitting layer having a uniform film thickness can be formed. In this method, Since the entire surface of the cover is covered with ultraviolet curable resin, it is difficult to avoid the adhesion of the ultraviolet curable resin on the components such as the arms used to manipulate the cover, so the components such as the arm are contaminated by the ultraviolet curable resin; In other parts of the spin coating apparatus or a manufacturing apparatus other than the spin coating apparatus, there is a possibility that an ultraviolet curable resin adheres, and as a result, the reliability of the entire manufacturing process may be reduced. Although such a problem can be solved by cleaning the members such as the arm, the installation of a cleaning device such as the arm may complicate the manufacturing process and increase the cost. -7- (4) (4) 200414140 Therefore, in Japanese Patent Application Laid-Open No. 2000, a method is proposed in which a cover having a holding shaft formed at a central portion thereof is used to emit ultraviolet rays from a nozzle toward an outer peripheral surface of the holding shaft. A method of forming a light-transmitting layer by spreading a liquid ultraviolet-curable resin by a spin coating device using a spin coating device. By this method, 'using a member such as an arm to grip a portion of a grip shaft formed in a central portion of the cover where no ultraviolet curable resin is adhered to manipulate the cover' can effectively prevent the arm from being contaminated by the ultraviolet curable resin, Other parts of the spin-coating device, devices other than the spin-coating device, and the like; by forming a thin holding shaft, a liquid ultraviolet curable resin can be spit out at about the center of the cover, and a low-viscosity liquid is used. In the case of a UV curable resin having a uniform shape, a spin coating device can be used to expand the discharged UV curable resin in a liquid state to form a light-transmitting layer having a uniform thickness. However, in order to use an objective lens with a large number of openings NA, it is required to form a light transmitting layer having a thickness of about 100 // m; however, as a coating liquid, a liquid ultraviolet curable resin having a low viscosity is used. In some cases, it is difficult to form a light transmission layer having a thickness of about 100 # m by a spin coating device. When a coating film is formed by a spin coating device, it is scattered from the peripheral portion of the substrate due to centrifugal force. The amount of the ultraviolet-curable resin increases, causing a problem of inefficiency. Therefore, in order to form a light transmitting layer having a thickness of about 100 // m, as a coating liquid, it becomes necessary to use a high-viscosity ultraviolet curable resin having a viscosity of 2000 to 10,000 centipoise. (5) (5) 200414140 The transfer coating device applies a high-viscosity UV-curable resin to a recording layer formed on a substrate to form a light-transmitting layer. When a high-viscosity UV-curable resin is used, When it is spit on the cover, the air will be entangled in the liquid ultraviolet curable resin, and air bubbles will be generated in the light transmission layer, and there will be a problem that the quality of the generated optical disc is reduced. When a high-viscosity liquid UV-curable resin is spit onto a lid that is rotating at high speed, air is particularly easily entangled in the liquid UV-curable resin, and air bubbles are easily formed in the light transmitting layer. There is a problem that the quality of the disc produced is significantly reduced. [Summary of the Invention] Therefore, an object of the present invention is to provide a method and an apparatus for manufacturing an optical disc, in which a light-transmitting layer is formed by spin coating even when a radiation-curable resin such as a UV-curable resin having a high viscosity is used. In some cases, it is possible to form a desired light-transmitting layer having no air bubbles and having excellent surface properties. In order to achieve the aforementioned object of the present invention, the inventors of the present invention have conducted intensive research and found that by controlling the position of the ejection nozzle in a vertical direction, the liquid radiation-hardening resin should be ejected. The discharge distance between the surface and the discharge port of the discharge nozzle becomes ^ 〇. 5mm to 5mm, while discharging liquid from the discharge port of the discharge nozzle.  The radiation-curable resin prevents air from being entangled when the liquid radiation-curable resin is discharged. Therefore, the foregoing object of the present invention is achieved by a method of manufacturing an optical disc, which is characterized by: a circular substrate on which a recording layer is to be formed It is set on the stage of the spin coating device, and then a cover that can hold the holding shaft is formed at the central part of the top of the spin coating device. The cover is set on the substrate, and the central hole formed in the central part of the substrate is plugged. Next, while rotating the stage at a low speed, the discharge distance between the discharge surface of the liquid radiation curable resin and the discharge port of the discharge nozzle should be 0. 5 mm to 5 mm so that the discharge nozzle is positioned above the top surface of the cover, and a liquid radiation-curable resin is discharged from the discharge port of the discharge nozzle. In the present invention, the ejection distance means the distance between the ejection outlet of the ejection nozzle for ejecting the liquid radiation curable resin and the ejected surface; the ejected surface includes the condition of the top surface of the cover, and The case of the surface of a radiocurable resin film formed by a liquid radiocurable resin spit on the top surface of the lid. If the discharge distance exceeds 5 mm, when the liquid radiation-hardening resin is discharged from the discharge port of the discharge nozzle on the discharge surface, air is easily drawn in, and light generated by spin coating is transmitted through In the layer, air bubbles are mixed in and the quality of the disc is reduced; on the other hand, when the ejection distance is less than 0. At 5 mm, the discharge nozzle may come into contact with the surface of the film of the radiation-curable resin formed by the liquid radiation-curable resin that is discharged on the top surface of the cover, and therefore the light formed on the recording layer The surface of the transmissive layer may cause meridian-like unevenness. Therefore, it is necessary to set the ejection distance to 0 while rotating the stage at a low speed. 5 mm to 5 mm to harden liquid radiation-hardening resin, -10- (7) (7) 200414140 spit on the top surface of the cover or hardened by liquid radiation spit on the top surface of the cover The liquid radiation-curable resin formed by the flexible resin is on the surface; if the discharge distance is 1 mm to 3 mm, the liquid radiation-curable resin is discharged from the discharge port of the discharge nozzle on the top surface of the cover. Better results can be obtained on or on the surface of the liquid radiation-curable resin formed by the liquid radiation-curable resin that is spit on the top surface of the lid. In this way, according to the present invention, since the system is configured: while the stage is rotated at a low speed, the discharge distance becomes 0. 5 mm to 5 mm, ideally 1 mm to 3 mm, to spit liquid radiation-hardening resin on the surface to be ejected, that is, to the top surface of the lid or by being spit on the top surface of the lid On the surface of the liquid radiation-curable resin formed by the liquid radiation-curable resin on the surface; even when a light-transmitting layer is formed by spin coating even when a radiation-curable resin with a high viscosity is used, One side is reliably prevented: on the surface of the light-transmitting layer, the discharge opening of the discharge nozzle comes into contact with the radiation-hardening resin film formed by the liquid radiation-hardening resin discharged on the top surface of the cover, resulting in Possibility of occurrence of meridian irregularities; effectively preventing: when the liquid radiation-curable resin is discharged, air is entangled in the liquid radiation-curable resin; A light transmitting layer in which air bubbles are mixed. According to a preferred embodiment of the present invention, the ejection nozzle is configured to control the ejection nozzle stepwise in accordance with an elapsed time after the ejection of the liquid radiation-curable resin from the ejection outlet of the ejection nozzle toward the top surface of the lid. The position of the discharge port in the vertical direction is, and a liquid radiation hardening resin is discharged from the discharge port of the nozzle from the discharge -11-(8) (8) 200414140. Another preferred embodiment of the present invention is configured to continuously control the discharge nozzle in accordance with the elapsed time after the liquid radiation-hardening resin starts to be discharged from the discharge nozzle of the discharge nozzle toward the top surface of the cover. A substantially vertical position of the discharge port, and a liquid radiation-curable resin is discharged from the discharge port of the discharge nozzle. In a more preferred embodiment of the present invention, the liquid radiation-curable resin has a viscosity of 2,000 to 10,000 percent poise. Fix the case where the liquid radiation-curable resin with high viscosity is spit on the top surface of the cover, and the liquid radiation-curable resin is splayed by a spin coating device to form a light transmitting layer. When the liquid radiation-hardening resin is ejected toward the top surface of the cover, air is easily drawn into the liquid radiation-hardening resin, and air bubbles are generated in the generated light-transmitting layer to become the optical disk. The problem of reduced quality; however, according to a more preferred embodiment of the present invention, since it is constituted: while the stage is rotated at a low speed, the ejection distance becomes 0. 5mm to 5mm, ideally 1 mm to 3 mm, to spit the liquid radiation-hardening resin on the surface to be discharged; therefore, even the liquid radiation-hardening resin has a height of 2000 to 10,000 percent poise Viscosity can also be reliably prevented: on the surface of the light-transmitting layer, the radiation-curable resin formed by the discharge port of the discharge nozzle and the liquid radiation-curable resin discharged on the top surface of the cover The possibility of the occurrence of meridian-like unevenness caused by the film contact; while effectively preventing: when the liquid radiation-curable resin is discharged, air is caught in the liquid radiation-curable resin-12- 200414140 Ο); therefore, it is possible to form a desired light-transmitting layer without air bubbles. A more preferred embodiment of the present invention is configured: while the aforementioned stage is set to 5r. p. m to lOOr. p. While rotating at a speed of m, the liquid radiation-curable resin is discharged from the discharge port of the discharge nozzle onto the discharge surface. When a high-viscosity liquid UV-curable resin is spit on the top surface of a lid that is rotating at a high speed, air is particularly easily drawn into the liquid UV-curable resin, so that air bubbles are easily formed in all places. In the generated light transmission layer, there is a problem that the quality of the optical disc is significantly reduced; however, according to an ideal embodiment of the present invention, since it is configured: while the stage is 5r. p. m to lOOr. p. Rotate at a speed of m while making the discharge nozzle face the top surface of the cover so that the discharge distance becomes 0. 5mm to 5mm, ideally 1 mm to 3 mm, and from the discharge nozzle of the discharge nozzle, spit a liquid radiation-curable resin onto the surface to be discharged; therefore, even when using a high-viscosity liquid UV-curable resin When the light transmission layer is formed by spin coating, it can be reliably prevented on the surface: the surface of the light transmission layer is hardened due to the ejection port of the ejection nozzle and the liquid radiation that is ejected on the top surface of the cover. The possibility of the occurrence of meridian-like unevenness caused by the contact of the radiation-curable resin film formed by the flexible resin; effectively prevents: when the liquid radiation-curable resin is discharged, the air is entrapped into the liquid radiation to harden This occurs in the resin; therefore, it is possible to form a desired light transmission layer without air bubbles. In a more preferred embodiment of the present invention, it is configured: while the aforementioned stage is lOr. p. m to 50r. p. While rotating at a speed of m, the liquid radiation-hardenable resin is spitted onto the discharge surface from the discharge port of the discharge nozzle described in the previous -13- (10) (10) 200414140. When a high-viscosity liquid UV-curable resin is spit on the top surface of a lid that is rotating at a high speed, air is particularly easily drawn into the liquid UV-curable resin, so that air bubbles are easily formed in all places. In the generated light transmitting layer, there is a problem that the quality of the optical disc is significantly reduced; however, according to an ideal embodiment of the present invention, since it is constituted: while the stage is lOr. p. m to 50r. p. The speed of m rotates, while the discharge nozzle is facing the top surface, and the discharge distance is 0. 5mm to 5mm, ideally 1mm to 3mm, and from the discharge port of the discharge nozzle, the liquid radiation-curable resin is spit on the discharge surface; therefore, even when using a high-viscosity liquid UV-curable Resin can be prevented from forming a light transmitting layer by spin coating, and can be reliably prevented on the surface of the light transmitting layer due to the ejection port of the ejection nozzle and the liquid radiation emitted by the top surface of the cover. The possibility of the occurrence of meridian-like unevenness caused by the contact of the radiation-curable resin film formed by the curable resin; while effectively preventing: when the liquid radiation-curable resin is discharged, air is caught in the liquid radiation This occurs in the curable resin; therefore, it is possible to form a desired light-transmitting layer without the inclusion of air bubbles. In a more preferred embodiment of the present invention, the method for manufacturing an optical disc further includes the liquid radiation-curable resin that rotates the stage at a high speed and is ejected onto the top surface of the cover. To the steps on the aforementioned recording layer. The foregoing object of the present invention is achieved by a manufacturing apparatus for optical discs. The manufacturing apparatus is characterized by: having: a stage on which a substrate can be fixed and can be rotated; and a cover is fixed Means for fixing the cover formed in the central hole of the central portion of the substrate to the base plate that has been fixed to the stage; and a stage rotation means for rotating the stage A discharge nozzle that discharges liquid radiation-curable resin toward the top surface of the cover from the discharge port; a discharge nozzle moving means that moves the discharge nozzle at least approximately vertically; and a control means for controlling the load The stage rotation means and the ejection nozzle moving means; the control means is configured to elapse after the liquid radiation-curable resin starts to be ejected from the ejection port of the ejection nozzle toward the top surface of the lid, The means for moving the discharge nozzle is controlled to control a position in the vertical direction of the discharge nozzle. According to the present invention, the manufacturing apparatus of the optical disc is composed of: a stage capable of fixing a substrate and being rotatable; and a cover fixing means for covering a center hole formed in a central portion of the substrate Is fixed on the substrate that has been fixed on the stage; the stage rotation means for rotating the stage; a discharge nozzle that discharges liquid radiation-hardening resin toward the top surface of the cover from the discharge port; Means for moving the ejection nozzle which moves the ejection nozzle at least approximately in the vertical direction -15- (12) (12) 200414140; and control means for controlling the stage rotation means and ejection nozzle movement means; the control means is composed of: According to the elapsed time from the ejection nozzle of the ejection nozzle toward the top surface of the cover, the ejection nozzle moving means is controlled to control the position of the ejection nozzle in a vertical direction; The stage rotates at a low speed, while the ejection nozzle faces the top surface as far as possible, and the ejection distance is 0. 5mm to 5mm, ideally 1 mm to 3 mm, and the liquid radiation curable resin is discharged from the discharge port of the discharge nozzle; therefore, even when a liquid UV curable resin with a high viscosity is used, it is rotated In the case of coating to form a light transmitting layer, it can be reliably prevented on the surface of the light transmitting layer, which is formed by a discharge port of a discharge nozzle and a liquid radiation-hardening resin discharged on the top surface of the cover. The possibility of the occurrence of meridian-like unevenness caused by the contact of the radiation-curable resin film; effectively prevent: when the liquid radiation-curable resin is discharged, air is entrained in the liquid radiation-curable resin. The situation occurs; therefore, it is possible to form a desired light transmitting layer without air bubbles. In a more preferred embodiment of the present invention, the control means is configured to control the rotary table rotation means to rotate the stage at a low speed, and control the discharge nozzle moving means so that liquid radiation should be discharged. The discharge distance between the discharge surface of the curable resin and the discharge port of the discharge nozzle is 0.  5 mm to 5 mm to control the approximately vertical position of the ejection nozzle as described in -16- (13) (13) 200414140. In a more preferred embodiment of the present invention, the aforementioned control means is constituted. While controlling the rotary table rotation means, the stage is rotated at a low speed, and the ejection nozzle moving means is controlled so that the ejection distance between the ejected surface and the ejection outlet of the ejection nozzle becomes 1 mm to 3 mm. , To control the position of the discharge nozzle in a vertical direction. In a more preferred embodiment of the present invention, the control means is configured to follow the elapsed time after the liquid radiation-curable resin is started to be discharged from the discharge port of the discharge nozzle toward the top surface of the cover, in steps. The position of the discharge port of the discharge nozzle in a substantially vertical direction is controlled in an advancing manner. In a more preferred embodiment of the present invention, the control means is configured such that the elapsed time after the liquid radiation-hardening resin starts to be discharged according to the ejection outlet from the ejection nozzle toward the top surface of the lid is continuous. An approximately vertical position of the discharge port of the discharge nozzle is controlled. In the present invention, as the radiation curable resin, it is desirable to use an ultraviolet curable resin, an electron beam curable resin, or the like. [Embodiment] (Description of Ideal Embodiment) Hereinafter, an ideal embodiment of the present invention will be described in detail with reference to the drawings. -17- (14) (14) 200414140 Figure 1 is a schematic perspective view of an optical disc manufactured by a method for manufacturing an optical disc in an ideal embodiment of the present invention; Figure 2 is shown in Figure A in Figure 1 The section shown is slightly enlarged in section. As shown in FIG. 1, the optical disc 1 manufactured by the method for manufacturing an optical disc according to this embodiment includes a circular substrate 2 made of polycarbonate or the like, and the surface of the substrate 2 on the light incident side. The recording layer 3 formed by thermal spraying or the like; and the light transmitting layer 4 formed on the surface of the recording layer 3. As shown in FIG. 2, the surface of the light incident side of the substrate 2 is formed by emission. When the substrate 2 is formed, a pre-groove 50 light transmission layer 4 is formed by thermal spraying. The light transmission layer 4 is formed on the recording layer 3 formed on the substrate 2 and spin-coated to form a liquid. A coating film of an ultraviolet curable resin is formed by irradiating ultraviolet rays on the coating film to cure the ultraviolet curable resin. As shown in FIG. 1, a central hole 6 is provided in the center of the optical disc 1 for placing the optical disc 1 in a recording / reproducing device; and an outer side of the central hole 6 is formed for placing the optical disc 1 in The clamping area 7 in the recording / reproducing device; in the clamping area 7, the recording layer 3 and the light transmitting layer 4 are not formed. FIG. 3 is a schematic perspective view showing important parts of an optical disc manufacturing apparatus according to an ideal embodiment of the present invention; FIG. 4 is a schematic view showing important parts of the optical disc manufacturing apparatus shown in FIG. Sectional view. As shown in Figs. 3 and 4, the -18- (15) (15) 200414140 manufacturing apparatus for the optical disc of this embodiment is constituted by a spin coating apparatus; the spin coating apparatus 10 is provided with : The stage 21 having a diameter approximately equal to the diameter of the disc Ϊ, the first protrusion 22 provided at the center of the stage 21, and the second protrusion provided at the center of the first protrusion 22部 23。 23. The stage 21, the first protrusion 22, and the second protrusion 23 are integrally rotatable by a stage motor (not shown). As shown in FIG. 3 and FIG. 4, the first protruding portion 22 is a portion on which a region corresponding to the clamping region 7 of the data recording unit on which the recording layer 3 has been formed is placed on the substrate 2; , Forming a plurality of first! Suction port 24. The first suction pump (not shown) is connected to the plurality of first suction ports 24. By operating the first suction mechanism, the data recording unit mounted on the first protrusion 22 is attracted to the first 1 is formed on the surface of the protruding portion 22 and can be fixed to the stage 21. The diameter of the second protrusion 23 corresponds to the diameter of the center hole 6 of the optical disc 1 to be manufactured, and constitutes that when the data recording unit is placed on the first protrusion 22, the second protrusion 23 can be inserted. In the center hole 6 of the data recording unit. As shown in FIGS. 3 and 4, the second suction port 25 is formed at the center of the second protruding portion 23; the% 2 suction pump (not shown) is connected to the second suction port 25. Although not shown in FIGS. 3 and 4, the spin coating apparatus 10 ′ further includes a first arm having a suction pad having flexibility at its tip end to attract the clamping area of the data recording unit. 7. Hold it and set it on the stage 21 of the spin coating device 10, and attract the coating of ultraviolet curable resin by -19- (16) (16) 200414140 spin coating The film is held in the clamping area 7 of the optical disc 1 and taken out of the spin coating device 10; the second arm is used to hold the cover, and it should be placed on the object already set And removing the cover from the optical disc 1 ′ which has been formed at a predetermined position on the data recording unit on the stage 21 by the spin coating to form a coating film having an ultraviolet curable resin; and A shaped ultraviolet curable resin is discharged from a discharge nozzle on the lid. Fig. 5 is a block diagram of a control system, an input system, and a drive system of the spin coating apparatus 10. As shown in FIG. 5, the control system of the spin coating device 10 includes a control unit 3 0, R 0 M 3 1 and RA M 3 2 that control the overall operation of the spin coating device 10; the input system is provided with To enter various information on the keyboard 3 3. In addition, as shown in FIG. 5, the drive system of the spin coating device 10 includes a stage motor 34 that rotates the stage 21; a first suction pump 3 5; a second suction pump 3 6; The first arm moving manual 38 is used to move the first arm 37 to attract the data recording unit and carry it; the second arm moving means 4 is used to move the second arm 39 to hold the chamber and carry it 〇; the ejection nozzle 41, the liquid ultraviolet curable resin can be ejected from the ejection nozzle 41 toward the top surface of the cover is ejected from the ejection position, and the ejection nozzle motor 42 moved between the retreat position retracted position; A discharge nozzle driving means 43 that discharges liquid ultraviolet curable resin from the discharge nozzle 41 toward the top surface of the cover; and an ultraviolet lamp 44. • 20-(17) (17) 200414140 In ROM3 1, a data table determined in advance based on experiments is stored. The table shows that liquid ultraviolet curable resin is ejected from the ejection nozzle 41 toward the top surface of the cover. The number of rotations of the stage 21 at the time, the viscosity of the liquid ultraviolet curable resin to be discharged from the discharge nozzle 41, the discharge speed of the liquid ultraviolet curable resin to be discharged from the discharge nozzle 41, The relationship between the elapsed time after the shaped ultraviolet curable resin is discharged from the discharge nozzle 41 toward the top surface of the cover, the position at which the discharge nozzle 41 should be positioned, and the time at which the discharge nozzle 41 should be positioned. With the spin coating device 10 configured as described above, when the optical disc 1 is to be manufactured, first, when an operator discharges liquid ultraviolet curable resin from the ejection nozzle 41 toward the top surface of the cover, The number of rotations of the stage, the viscosity of the liquid ultraviolet curable resin to be discharged from the discharge nozzle 41, the discharge speed of the liquid ultraviolet curable resin to be discharged from the discharge nozzle 41, and the discharge speed of the liquid ultraviolet curable resin 4 1 The data of the discharged amount of the liquid ultraviolet-curable resin to be discharged is inputted via the keyboard 3 3 together with the activation signal. In this embodiment, the operator uses the keyboard 33 to input the following settings, that is, the number of rotations of the stage when the liquid ultraviolet curable resin is ejected from the ejection nozzle 41 toward the top surface of the cover is 2 〇r. pm; The viscosity of the liquid ultraviolet curable resin to be discharged from the discharge nozzle 41 is 5000 centipoise; the discharge speed of the liquid ultraviolet curable resin to be discharged from the discharge nozzle ο is 015 ml / sec 'The discharge amount of the liquid ultraviolet curable resin discharged from the discharge nozzle 41 was 2 ml. -21-(18) (18) 200414140 Regarding the number of rotations of the stage 21, the viscosity of the liquid ultraviolet curable resin to be discharged from the discharge nozzle 4 and the liquid ultraviolet light to be discharged from the discharge nozzle 4 The discharge speed of the curable resin, the discharge amount of the liquid ultraviolet curable resin discharged from the discharge nozzle 41, and the activation signal are input to the control unit 30. The control unit 30 receives the number of rotations of the stage 21, the viscosity of the liquid ultraviolet curable resin to be discharged from the discharge nozzle 41, and the liquid ultraviolet curing to be discharged from the discharge nozzle 41. The discharge speed of the flexible resin, the discharge amount of the liquid ultraviolet curable resin discharged from the discharge nozzle 41, and the activation signal are related to the number of rotations of the stage 2 1 and the liquid to be discharged from the discharge nozzle 41. Information about the viscosity of the UV-curable resin in the shape of a liquid, the discharge rate of the liquid UV-curable resin discharged from the discharge nozzle 41, and the discharge amount of the liquid UV-curable resin discharged from the discharge nozzle 41 The RAM 32 calculates the discharge time of the ultraviolet curable resin based on these data. The control unit 3 0 ′ further reads from the table stored in R 0 μ 3 1: the first discharge position data. This data is about the liquid ultraviolet curable resin from the discharge nozzle 4 1 toward the cover. When the top surface of the nozzle starts to be ejected, the first ejection position at which the ejection nozzle 41 should be positioned; the second ejection position information, which is about one rotation about the stage 21, and is ejected on the top surface of the cover by being ejected. When the liquid ultraviolet curable resin is ejected from the ejection nozzle 41 on the surface of the ultraviolet curable resin film formed by the liquid ultraviolet curable resin on the surface, the second ejection position at which the ejection nozzle 41 should be positioned; 3 Discharge position data, this data is about the stage 2 j • 22- (19) (19) 200414140 about two rotations' and the liquid ultraviolet curable resin is ejected on the top surface of the cover On the surface of the formed ultraviolet curable resin film, when liquid ultraviolet curable resin is ejected from the ejection nozzle 41, the third ejection position at which the ejection nozzle 41 should be positioned; the fourth ejection position data, this data is About The stage 2 1 rotates about three turns, and the liquid ultraviolet curable resin is formed on the surface of the ultraviolet curable resin film formed by the liquid ultraviolet curable resin discharged from the top surface of the cover. When ejecting from the ejection nozzle 41, the fourth ejection position at which the ejection nozzle 41 should be positioned; and the fifth ejection position data, which is about four rotations about the stage 2 1 and is being ejected in the cover. When the liquid ultraviolet curable resin is ejected from the ejection nozzle 4 1 on the surface of the ultraviolet curable resin film formed by the liquid ultraviolet curable resin on the top surface, the fifth position where the ejection nozzle 41 should be positioned Eject position; make these data memorize in RAM32. Further, the control unit 30 controls the viscosity of the liquid ultraviolet curable resin to be discharged from the discharge nozzle 41 according to the number of rotations on the stage 21, and the liquid ultraviolet light to be discharged from the discharge nozzle 41. The data of the discharge speed of the curable resin and the discharge amount of the liquid ultraviolet curable resin discharged from the discharge nozzle 41 are calculated, and the time for positioning the discharge nozzle 41 is calculated and stored in the RAM 32. At the same time, the control unit 30 outputs the first driving signal to the first arm moving manual 38, and the substrate 2 is attracted by the suction pad (not shown) of the first arm 37, and is formed by sputtering. The data recording unit of the recording layer 3 on the substrate 2 is set on the carrier 23- (20) (20) 200414140 of the spin coating apparatus 10. The data recording unit 'its clamping area 7 is attracted and transported by the first arm 37, and it is set on the stage 2 1 of the spin coating device 10, and the recording layer 3 is located above and the second The protruding portion 23 may be fitted in the center hole 6 thereof. The data recording unit, once set on the stage 2 1 of the spin coating device 10, and the control unit 30, outputs the back-off signal to the first arm, which is manually operated 3 8 to make the first arm 3 7 from the carrier. Retreat on the object table 21; at the same time, the control unit 30 outputs an operation signal to the first suction pump 35, and causes the first suction pump 35 to operate. As a result, the substrate 2 placed on the first protrusion 22 is attracted to the surface of the first protrusion 22 and fixed to the stage 21. Fig. 6 is a schematic cross-sectional view showing a state where the data recording unit is fixed on a stage of a spin coating apparatus. Next, the control unit 30 outputs the first driving signal to the second arm moving means 40, and the second arm 39 places the cover on the data recording unit 5 which has been set on the stage 21. On the specified position. Fig. 7 is a schematic perspective view of the cover; Fig. 8 is a schematic central sectional view of the cover shown in Fig. 7. As shown in FIG. 7 and FIG. 8, the cover 5 5 ′ used in this embodiment is provided with a planar shape that is circular, and a projection shape of a side surface thereof is approximately a trapezoidal umbrella portion 5 6; it is formed on the umbrella The top surface of the portion 56 is a support shaft 5 7 extending from the center of the top surface of the umbrella portion 56 to the axial direction of the umbrella portion 56; and is formed on the bottom surface of the umbrella portion 56 and from the bottom surface of the umbrella portion 56 In the center, an approximately cylindrical projection 58 extending in the axial direction of the umbrella-24 · (21) (21) 200414140 section 56. As shown in FIG. 7 and FIG. 8, when the ultraviolet curable resin is applied to the surface of the data recording unit 50 by spin coating, in order to prevent the ultraviolet curable resin from entering the cover due to a capillary phenomenon, The bottom of the umbrella portion 56 is between the base plate 2 and the bottom surface of the umbrella portion 56 of the cover 55, and a recess portion 5 6a is formed. The cover 5 5 is formed of metal. The diameter of the umbrella portion 56 is set to be larger than the diameter of the center hole 6 of the optical disc 1 to be manufactured and to be smaller than the outer diameter of the clamping region 7 of the optical disc 1 to be manufactured. The diameter of the protruding portion 58 of the cap 5 5 is slightly smaller than the inner diameter of the second suction port 25 of the spin coater 10. The cover 5 5 uses the second arm 39 to hold the support shaft 5 7 so that it can be transported; and when it is placed on the data recording unit 50 that has been set on the stage 21 The protruding portion is fitted into the second suction port 25 of the spin-coating device 10 so that it can be positioned at a predetermined position. Fig. 9 is a schematic cross-sectional view showing a state where 5 5 is set at a predetermined position of the data recording unit 50 which has been set on the stage 2 1. Here, the cover 55 is provided on the data recording unit 50, and the peripheral portion of the umbrella ′ portion 56 is located on the concentric circle of the peripheral portion of the substrate 2. Cover 55—Once set on the data recording unit 50, the control unit 30 outputs a retraction signal to the second arm moving means 4o, so that the second arm 3 9 retreats from the stage 21; at the same time, the control The unit 30 outputs the operation signal to -25- (22) (22) 200414140 to the second suction pump 36, and the second suction pump 36 is operated. As a result, the protrusion 5 8 of the cover 5 5 fitted in the second suction port 25 of the spin coater 10 is attracted, and the cover 5 5 is fixed to the data recording unit 50. Once the first suction pump 35 is activated and the cover 55 is fixed to the data recording unit 50 and the control unit 30, the first suction pump 35 is based on the data on the number of rotations of the stage 21 which is stored in the RAM 32, and the first 1 The drive signal is output to the stage motor 34, and the stage motor 34 is actuated, so that the stage 2 1, the first protruding portion 22, and the second protruding portion 23 are integrally 20r. p. m 'for rotation. As a result, the data recording unit 50 fixed to the stage 21 and the cover 55 fixed to the data recording unit 50 are also connected to the stage 21, the first protrusion 22, and the second protrusion 23, Take 20r together. p. m at a speed of rotation. Next, the control unit 30 reads the first ejection position data stored in the RAM 32, and then generates a first ejection nozzle positioning signal based on the read first ejection position data, and then outputs the signal to the ejection nozzle motor 42 to cause ejection. The nozzle 41 is moved to the first discharge position. For example, the nozzle 41 is moved to the first discharge position, that is, the discharge distance of the nozzle 41 and the discharge surface of the liquid ultraviolet curable resin which is to be discharged is the umbrella portion 5 6 of the cover 5 5. The distance between the top surfaces is at a position of 4 mm. Once the ejection nozzle 41 is moved to the first ejection position, the control unit 30 outputs the ejection signal to the ejection nozzle driving means 43, and from the ejection nozzle 41, a liquid ultraviolet ray having a viscosity of 5,000 percent poise The curable resin 60 was discharged onto the top surface of the umbrella -26- (23) (23) 200414140 part 5 6 at a discharge speed of 0.115 ml / sec. In this embodiment, when the liquid ultraviolet curable resin 60 is started to be discharged from the discharge nozzle 41 on the top surface of the umbrella portion 56 of the cover 55, the discharge nozzle 41 is held at The distance between the first ejection position, that is, the ejection outlet held at the ejection nozzle 41 and the ejection surface of the liquid UV-curable resin that should be ejected, that is, the top surface of the umbrella portion 5 6 of the cover 5 5 is 4 mm. Position, and then discharge the liquid ultraviolet curable resin 60 from the discharge nozzle 41 on the top surface of the umbrella portion 56 of the cover 55, so when the liquid ultraviolet curable is discharged from the discharge nozzle 41 When the resin 60 is ejected on the top surface of the umbrella portion 5 6 of the cover 5 5, it is possible to effectively prevent air from being caught in the liquid ultraviolet curable resin 60 and mixed into the generated light transmitting layer 4. The situation with bubbles occurs. So, at 20r. p. The speed of m is rotated on the top surface of the umbrella portion 56 of the cover 55, if the nozzle 41 is ejected at 0. The discharge speed of 15 ml / sec, when the liquid ultraviolet curable resin 60 is discharged, the liquid ultraviolet curable resin 60 has a high viscosity of 5000 percent poise, so the cover directly below the discharge port of the discharge nozzle 41 The top surface of the umbrella portion 56 of 55 will form about 2. A film of liquid UV-curable resin 60 with a thickness of 5 mm; liquid UV-curable resin 60 with a liquid-free state is connected to the liquid surface formed on the top surface of the umbrella portion 5 6 of the cover 5 5 The film of the ultraviolet curable resin 60 is discharged from the discharge port of the discharge nozzle 4. FIG. 10 shows a liquid ultraviolet curable resin 60 having a viscosity of 5,000 percent poise from a discharge nozzle 4 1 located at a first discharge position toward a top surface of an umbrella portion 5 6 of a cover 5 5. Figure -27- (24) (24) 200414140 figure of the spitting state. Therefore, as shown in FIG. 10, after the liquid ultraviolet curable resin 60 starts to spit on the top surface of the umbrella portion 5 6 of the cover 5 5, the liquid ultraviolet curable resin 60 0 The liquid ultraviolet curable resin 60, which is discharged from the discharge nozzle 41, is changed into a liquid ultraviolet curable resin, which is discharged from the discharge nozzle 41 to the top surface of the umbrella portion 5 6 formed on the cover 55. On the surface of the film of 60, the surface of the liquid UV-curable resin 60 is changed to the discharge surface of the liquid ultraviolet-curable resin, and the discharge port and the discharge surface of the nozzle 41 are discharged. The spitting distance between them is 1. 5mm ° From the discharge nozzle 41, the liquid ultraviolet curable resin 60 is started to be discharged onto the top surface of the umbrella portion 5 6 of the cover 5 5 and before the stage 21 is rotated once, the nozzle 41 is discharged. , The system is kept at: the distance from the top surface of the umbrella portion 5 5 of the cover 5 5 is 4 mm, and the distance from the surface being ejected is 1.  At the first ejection position of 5 mm. As described above, in this embodiment, since the liquid ultraviolet curable resin 60 is constituted, the liquid ultraviolet curable resin 60 is ejected from the ejection nozzle 41 to the top surface of the umbrella portion 5 6 of the cover 5 5, and the cover 5 5 After the film of the liquid ultraviolet curable resin 60 is formed on the top surface of the umbrella portion 56, the discharge nozzle 41 is held so that the discharge port and the discharge surface of the liquid ultraviolet curable resin 60 should be discharged. That is, the distance between the surfaces of the film of the liquid ultraviolet curable resin 60 is 1. At the first discharge position of 5 mm, the liquid ultraviolet curable resin 60 can be discharged from the discharge nozzle 41 to the liquid ultraviolet curability formed on the top surface of the umbrella portion 56 of the cover 5 5. Table-28- (25) (25) 200414140 surface of the film of resin 60; therefore, the discharge port of the discharge nozzle 41 does not contact the liquid state formed on the top surface of the umbrella portion 5 6 of the cover 5 5 The film of the ultraviolet curable resin 60 can be reliably prevented from coming into contact with the liquid ultraviolet curable resin 60 formed on the top surface of the umbrella portion 5 6 of the cover 5 5 due to the discharge opening of the discharge nozzle 41. In the light transmitting layer 4 formed on the recording layer 3, vein-like unevenness may occur. In addition, in this embodiment, the liquid ultraviolet curable resin 60 is configured to be ejected from the ejection nozzle 41 on the top surface of the umbrella portion 56 of the cover 55, and to the umbrella portion 5 6 of the cover 55. After forming a film of the liquid ultraviolet curable resin 60 in the upper surface, the discharge nozzle 41 is held so that the discharge opening and the discharge surface of the liquid ultraviolet curable resin 60 which should be discharged are also liquid. The distance between the surfaces of the film of the ultraviolet curable resin 60 is 1 · 5 mm at the first discharge position, so the liquid ultraviolet curable resin 60 can be discharged from the discharge nozzle 4 to be formed on the cover. 5 5 of the umbrella portion 5 6 on the top surface of the liquid ultraviolet curable resin 60 on the surface of the film; therefore, when the liquid ultraviolet curable resin 60 is discharged from the nozzle 41, the liquid The surface of the film of the ultraviolet curable resin 60 can effectively prevent air from being entangled in the liquid ultraviolet curable resin 60, and air bubbles are mixed in the generated light transmitting layer 4. . After starting to discharge the liquid ultraviolet curable resin 60 from the nozzle 41 to the top surface of the umbrella portion 5 6 of the cover 5 5, if the stage 2 j rotates once, the nozzle 4 is discharged. The outlet of 1 reaches the liquid-curable ultraviolet curable resin 6 0. The first part is discharged from the ejection nozzle 4 1 and the umbrella 29- (26) (26) 200414140 of the cover 5 5 . Therefore, a liquid UV-curable resin 60 film has been formed on the top surface of the umbrella portion 56 of the cover 5 5 facing the discharge port of the discharge nozzle 41; The liquid ultraviolet curable resin 60 on the top surface of the portion 56 is flattened and unfolded. Therefore, on the top surface of the umbrella portion 56 of the cover 55, the liquid ultraviolet curable resin is started to be discharged. The stage 21 will start to rotate once, and the discharge opening of the nozzle 41 will not face the top surface of the umbrella portion 56 of the cover 55, but will face the discharge through the liquid ultraviolet curable resin 60. After the liquid ultraviolet curable resin 60 is ejected after the start, the surface of the film of the liquid ultraviolet curable resin 60 is formed on the top surface of the umbrella portion 56 of the cover 55. On the other hand, as described above, after the liquid ultraviolet curable resin 60 starts to spit on the top surface of the umbrella portion 56 of the cover 5 5, the liquid ultraviolet curable resin 60 is The liquid ultraviolet curable resin 60 discharged from the discharge nozzle 41 is discharged into a liquid ultraviolet curable resin 6 discharged from the discharge nozzle 41 on the top surface of the umbrella portion 5 6 formed on the cover 5 5. 0 on the surface of the film, so from the stage 2 1 that the liquid ultraviolet curable resin 60 is to be rotated once, the liquid ultraviolet curable resin 60 is ejected from the ejection nozzle 4 i: by the liquid ultraviolet curable resin The liquid ultraviolet curable resin 60 discharged from the discharge nozzle 41 is counted from 60 to the top surface of the umbrella portion 5 6 of the cover 5 5, and the stage 2 i is rotated approximately once. On the surface of the formed film of the liquid ultraviolet-curable resin 60, that is, the liquid ultraviolet-curable resin formed by the liquid ultraviolet-curable resin 60 just discharged from the discharge nozzle 41 just before- 30- (27) (27) 200414140 6 0 on the surface of the film; so, from liquid The ultraviolet curable resin 6 is a liquid that is discharged from the discharge nozzle 41 during the period from when the upper surface of the umbrella portion 5 6 of the cover 5 5 starts to be discharged until the stage 2 1 rotates about one turn. The surface of the film of the liquid UV-curable resin 60 formed by the UV-curable resin 60 is the liquid state formed by the liquid UV-curable resin 60 that was previously ejected from the ejection nozzle 4 I. The surface of the film of the ultraviolet curable resin 60 is a discharge surface. Here, as described above, when the liquid ultraviolet curable resin 60 is discharged from the ejection nozzle 41, it is ejected at a speed of 0. 15 ml / sec. While being rotated at a speed of 2 Or · ρ · ιη. On the top surface of the umbrella portion 56 of the cover 55, a liquid ultraviolet curable resin having a thickness of about 2.5 mm is formed on the top surface of the umbrella portion 56 of the cover 55 directly below the discharge port of the discharge nozzle 41. The film of 60 0 'and the rotation of the stage 21 will flatten the film of the liquid ultraviolet curable resin 60', so the film thickness of the liquid ultraviolet curable resin 60 will be reduced to about 2 mm. In addition, when the liquid ultraviolet curable resin 60 was discharged from the discharge nozzle 4 1 ′ at a discharge speed of 0.15 ml / sec, the cover 55 was formed while being rotated at a speed of 20 r · ρ · ιη. When the liquid UV-curable resin 60 on the top surface of the umbrella portion 56 is on the surface of the film, the thickness of the liquid UV-curable resin 60 formed is the same as that of the liquid UV-curable resin 60. Compared with the case where it is thrown on the top surface of the umbrella part 56 of the cover 55, its thickness is smaller, and it becomes about 2 mm. Therefore, from the time when the stage 21 is to be rotated once, the liquid ultraviolet curable resin 60 is changed from the discharge nozzle 41 to the top surface of the umbrella portion 56 which has been formed in the chamber 55. Liquid -31-(28) (28) 200414140 The liquid-curable resin 60 having a thickness of about 4 mm is on the surface of the film. As a result, when the discharge nozzle 41 is held at the first discharge position at a distance of 4 mm from the top surface of the umbrella portion 56 of the cover 55, and the liquid ultraviolet curable resin 60 is discharged from the discharge nozzle 41, The discharge port of the discharge nozzle 41 may come into contact with the film of the liquid ultraviolet curable resin 60 formed directly below, and the surface of the light transmitting layer 4 formed on the recording layer 3 may have a meridian shape. Uneven. Therefore, in this embodiment, the control unit 30 reads out the second ejection position data memorized in φ 32 in the RAM 32, generates a second ejection nozzle positioning signal based on the second ejection position data, and stores the signal in the RAM 32 according to the second ejection position data. The timing of positioning the ejection nozzle 41 is after the liquid ultraviolet curable resin 60 is started to be ejected on the top surface of the umbrella portion 5 6 of the cover 5 5 and before the stage 21 is rotated once. The second ejection nozzle positioning signal is output to the ejection nozzle motor 4 2 to move the ejection nozzle 41 to the second ejection position, for example, to move only 2 mm away from the top surface of the umbrella portion 56 of the cover 55 than the first ejection position. Position, that is, to a position where the distance from the top surface of the umbrella portion 5 6 of the cover 55 φ is 6 mm. As a result, starting from the rotation of the stage 21, the nozzle 4 1 and the film of the liquid ultraviolet curable resin 60 having a thickness of about 4 mm formed on the top surface of the umbrella portion 56 of the cover 55 are discharged. The ejection distance between the surfaces is kept at about 2 mm, and the liquid ultraviolet curable resin 60 'is ejected from the ejection nozzle 41 to the thickness of the top surface of the umbrella portion 56 which has been formed on the cover 55. Approximately 4 mm on the surface of the film of liquid ultraviolet curable resin 60. -32- (29) (29) 200414140 As described above, in this embodiment, since it is configured that the liquid ultraviolet curable resin 60 is turned from the discharge nozzle 41 to the discharge port 41, it is discharged into the cover that has been formed. The top surface of the umbrella portion 56 of 55 has a thickness of about 4 mm on the surface of the liquid UV-curable resin 60 film, that is, from the time when the stage 21 is rotated once, the ejection nozzle 41 is held. In: the discharge port of the discharge nozzle 41 and the discharge surface of the liquid ultraviolet curable resin 60 which should be discharged, that is, the liquid having a thickness of about 4 mm which has been formed on the top surface of the umbrella portion 5 6 of the cover 5 5 The distance between the surface of the film of the UV-curable resin 60 is about 2 mm at the second discharge position; and the liquid UV-curable resin 60 can be discharged from the discharge port of the discharge nozzle 41 before it is formed. On the top surface of the umbrella portion 5 6 of the cover 5 5, the liquid ultraviolet curable resin 60 having a thickness of about 4 mm is on the surface of the film; therefore, the outlet of the nozzle 41 is not in contact with the cover formed on the cover. 5 5 The thickness of the top surface of the umbrella part 5 6 is about 4mm The film of the ultraviolet curable resin 60 can be reliably prevented from contacting the liquid ultraviolet curable resin 6 formed on the top surface of the umbrella portion 5 6 of the cover 55 due to the discharge of the discharge nozzle 41. 〇 film, and the light transmitting layer 4 formed on the recording layer 3 may cause meridian-like unevenness. Furthermore, in this embodiment, since it is constituted that the liquid ultraviolet curable resin 60 is discharged from the discharge nozzle 41, the thickness is discharged on the top surface of the umbrella portion 56 which has been formed on the cover 55. The liquid ultraviolet curable resin 60 film having a thickness of about 4 mm is held on the surface of the liquid ultraviolet curable resin 60, that is, when the stage 21 is to be rotated once, and the ejection nozzle 41 is held at -33 · (30) 200414140

在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂6 0之被吐出面也就是已經被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲4 m m之液狀的紫外線硬化性樹 脂6 0的膜的表面之間的距離,大約爲2 mm的第2吐出位 置處;而液狀的紫外線硬化性樹脂6 0,則可以從吐出噴 嘴4 1的吐出口,吐在已經被形成於蓋5 5的傘部5 6的頂 面上之厚度大約爲4 m m的液狀的紫外線硬化性樹脂6 0的 膜的表面上;所以在將液狀的紫外線硬化性樹脂60,從 吐出噴嘴4 1吐在已經被形成於蓋5 5的傘部5 6的頂面上 之厚度大約爲4mm的液狀的紫外線硬化性樹脂60的膜的 表面上的時候,可以有效地防止:空氣被捲入液狀的紫外 線硬化性樹脂6 0中,而在所生成的光透過層4中,混入 氣泡的情況發生。The thickness of the ejection surface of the ejection nozzle 41 and the ultraviolet curable resin 60 that should be ejected from the ejection surface, which is already formed on the top surface of the umbrella portion 5 6 of the cover 5 5 is approximately 4 mm The distance between the surfaces of the film of the liquid ultraviolet curable resin 60 is about 2 mm at the second discharge position; and the liquid ultraviolet curable resin 60 can be discharged from the discharge port of the discharge nozzle 41. On the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 4 mm which has been formed on the top surface of the umbrella portion 5 6 of the cover 55; therefore, the liquid ultraviolet curable The resin 60 is effective when it is discharged from the discharge nozzle 41 to the surface of the liquid ultraviolet curable resin 60 having a thickness of about 4 mm which has been formed on the top surface of the umbrella portion 56 of the cover 5 5. Ground prevention: Air is entangled in the liquid ultraviolet curable resin 60, and air bubbles are mixed in the generated light transmitting layer 4.

第1 1圖係表示液狀的紫外線硬化性樹脂6 0,從吐出 噴嘴4 1,被吐出在已經被形成於蓋5 5的傘部5 6的頂面 上之厚度大約爲4mm的液狀的紫外線硬化樹脂60的膜的 表面上之狀態的槪略擴大剖面圖。 自開始從吐出噴嘴4 1,將液狀的紫外線硬化性樹脂 6〇吐在蓋55的傘部56的頂面上之後算起,若載物台21 旋轉二圈,則吐出噴嘴4 1的吐出口,到達面對液狀的紫 外線硬化性樹脂6 0最初從吐出噴嘴4 1被吐在蓋5 5的傘 部5 6的頂面上的部分。 因此,在面對吐出噴嘴41的吐出口之蓋5 5的傘部 5 6的頂面上’已經形成了厚度大約爲4mm的液狀的紫外 -34- (31) (31)200414140 線硬化性樹脂6 0的膜;又,由於被吐在蓋5 5的傘部5 6 的頂面上之液狀的紫外線硬化性樹脂6 0,被整平而展 開,所以在蓋5 5的傘部5 6的頂面,液狀的紫外線硬化性 樹脂的吐出開始之後,從載物台2 1將要旋轉二圈開始, 吐出噴嘴4 1的吐出口,變成面對被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲4mm的液狀的紫外線硬化性樹 脂6 0的膜的表面。 另一方面,如前所述,液狀的紫外線硬化性樹脂60 開始吐在蓋5 5的傘部5 6的頂面上之後,由於液狀的紫外 線硬化性樹脂6 0,藉由先前剛從吐出噴嘴4 1被吐出的液 狀的紫外線硬化性樹脂6 0,而變成從吐出噴嘴4 1吐在被 形成於蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化性樹 脂6 0的膜的表面上,所以從載物台21將要旋轉二圈開 始’液狀的紫外線硬化性樹脂6 0,係變成從吐出噴嘴4 1 被吐在:被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲 4mm的液狀的紫外線硬化性樹脂6〇的膜的表面上,也就 是藉由先前剛從吐出噴嘴4 1被吐出的液狀的紫外線硬化 性樹脂6 0所形成的液狀的紫外線硬化性樹脂6 〇的膜的表 面上;所以,被形成在蓋5 5的傘部5 6的頂面上之厚度大 約爲4 m m的液狀的紫外線硬化性樹脂6 〇的膜的表面,其 藉由先前剛從吐出噴嘴41被吐出的液狀的紫外線硬化性 樹脂60所形成的液狀的紫外線硬化性樹脂6〇的膜的表 面,成爲被吐出面。 在此,如前所述,當液狀的紫外線硬化性樹脂 60, -35- (32) (32) 200414140 從吐出噴嘴4 1,以〇 · 1 5毫升/秒的吐出速度,吐在被形成 於以2 0 r · p · m的速度旋轉中的蓋5 5的傘部5 6的頂面上之 液狀的紫外線硬化性樹脂60的膜的表面上的時候,其所 形成的液狀的紫外線硬化性樹脂60的膜的厚度,與液狀 的紫外線硬化性樹脂6 0被吐在蓋5 5的傘部5 6的頂面上 之情況相比,其厚度較小,大約變成2mm,所以從載物 台2 1將要旋轉二圈開始,液狀的紫外線硬化性樹脂6 〇, 變成從吐出噴嘴4 1被吐在已經被形成於蓋5 5的傘部5 6 的頂面上之厚度大約爲6mm的液狀的紫外線硬化性樹脂 6 〇的膜的表面上。 因此,當將吐出噴嘴4 1保持在從蓋5 5的傘部5 6的 頂面算起的距離爲6mm之第2吐出位置,而從吐出噴嘴 4 1吐出液狀的紫外線硬化性樹脂6 0時,吐出噴嘴4 1的 吐出口有可能會接觸到被形成於正下方的液狀的紫外線硬 化性樹脂6 0的膜,而在被形成於記錄層3上的光透過層 4的表面,產生經脈狀的不均。 於是’在本實施形態中,控制單元3 0,讀出被記憶 在RAM32中的第3吐出位置資料,根據第3吐出位置資 料’生成第3吐出噴嘴定位訊號,再按照被記憶在 RAM32中的將吐出噴嘴41定位的時序,在開始將液狀的 紫外線硬化性樹脂6 0吐在蓋5 5的傘部5 6的頂面上之 後,於載物台2 1將要旋轉二圈之前,將第3吐出噴嘴定 位訊號,輸出至吐出噴嘴馬達4 2,使吐出噴嘴4 1移動至 第3吐出位置,例如移動至僅比第2吐出位置更加地離開 -36- (33) (33)200414140 蓋55的傘部56的頂面2mm之位置,亦即移動至與蓋55 的傘部5 6的頂面之間的距離爲8 mm的位置處。 結果,從載物台2 1將要旋轉二圈開始,吐出噴嘴4 } 與被形成在蓋5 5的傘部5 6的頂面上之厚度大約爲6 m m 的液狀的紫外線硬化性樹脂60的膜的表面之間的吐出距 離,被保持在大約2mm,而液狀的紫外線硬化性樹脂 60,則從吐出噴嘴4 1被吐在已經被形成於蓋5 5的傘部 5 6的頂面上之厚度大約爲6 m m的液狀的紫外線硬化性樹 脂60的膜的表面上。 如此,在本實施形態中,由於被構成:自液狀的紫外 線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出口,被吐在已 經被形成於蓋55的傘部56的頂面上之厚度大約爲6mm 的液狀的紫外線硬化性樹脂60膜的表面上,亦即從載物 台2 1將要旋轉二圈的時候開始,吐出噴嘴4 1便被保持 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲6mm之液狀的紫外線硬化性樹 脂60的膜的表面之間的距離,大約爲2mm的第3吐出位 置處;而液狀的紫外線硬化性樹脂6 0,則可以從吐出噴 嘴41的吐出口,吐在已經被形成於蓋55的傘部56的頂 面上之厚度大約爲6mm的液狀的紫外線硬化性樹脂6 0的 膜的表面上;所以吐出噴嘴41的吐出口,並不會接觸被 形成在蓋5 5的傘部5 6的頂面上之厚度大約爲6 m m的液 狀的紫外線硬化性樹脂60的膜,因此可以確實地防止: •37- (34) (34)200414140 由於吐出噴嘴41的吐出□,接觸被形成在蓋5 5的傘部 5 6的頂面上之液狀的紫外線硬化性樹脂60的膜,而在被 形成在記錄層3上的光透過層4,發生經脈狀的不均的可 能性。 進而,在本實施形態中,由於被構成:自液狀的紫外 線硬化性樹脂6 0變成從吐出噴嘴41的吐出口,被吐在已 經被形成於蓋55的傘部56的頂面上之厚度大約爲6mm 的液狀的紫外線硬化性樹脂6 0膜的表面上,亦即從載物 台 2 1將要旋轉二圈的時候開始,吐出噴嘴4 !便被保持 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲6 m m之液狀的紫外線硬化性樹 脂60的膜的表面之間的距離,大約爲2mm的第3吐出位 置處;而液狀的紫外線硬化性樹脂60,則可以從吐出噴 嘴41的吐出口,吐在已經被形成於蓋55的傘部56的頂 面上之厚度大約爲6 mm的液狀的紫外線硬化性樹脂6 〇的 膜的表面上;所以在將液狀的紫外線硬化性樹脂6〇,從 吐出噴嘴4 1吐在已經被形成於蓋5 5的傘部5 6的頂面上 之厚度大約爲6 m m的液狀的紫外線硬化性樹脂6 〇的膜的 表面上的時候,可以有效地防止:空氣被捲入液狀的紫外 線硬化性樹脂6 0中,而在所生成的光透過層4中,混入 氣泡的情況發生。 自開始從吐出噴嘴41 ’將液狀的紫外線硬化性樹脂 60吐在蓋55的傘部56的頂面上之後算起,若載物台21 -38- (35) (35)200414140 旋轉三圈,則吐出噴嘴4 1的吐出口,到達面對液狀的紫 外線硬化性樹脂6 0最初從吐出噴嘴4 1被吐在蓋5 5的傘 部5 6的頂面上的部分。 因此’在面對吐出噴嘴4 1的吐出口之蓋5 5的傘部 5 6的頂面上,已經形成了厚度大約爲6mm的液狀的紫外 線硬化性樹脂6 0的膜;又,由於被吐在蓋5 5的傘部5 6 的頂面上之液狀的紫外線硬化性樹脂60,被整平而展 開,所以在蓋5 5的傘部5 6的頂面,液狀的紫外線硬化性 樹脂的吐出開始之後,從載物台2 1將要旋轉三圈開始, 吐出噴嘴41的吐出口,變成面對被形成在蓋55的傘部 5 6的頂面上之厚度大約爲6mm的液狀的紫外線硬化性樹 脂6 0的膜的表面。 另一方面,如前所述,液狀的紫外線硬化性樹脂6〇 開始吐在蓋5 5的傘部5 6的頂面上之後,由於液狀的紫外 線硬化性樹脂6 0 ’藉由先前剛從吐出噴嘴4 1被吐出的液 狀的紫外線硬化性樹脂60,而變成從吐出噴嘴4 1吐在被 形成於蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化性樹 脂6 0的膜的表面上,所以從載物台2 1將要旋轉三圈開 始’液狀的紫外線硬化性樹脂6 0,係變成從吐出噴嘴4 1 被吐在:被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲 6mm的液狀的紫外線硬化性樹脂60的膜的表面上,也就 是藉由先前剛從吐出噴嘴4 1被吐出的液狀的紫外線硬化 性樹脂60所形成的液狀的紫外線硬化性樹脂6〇的膜的表 面上;所以,被形成在蓋5 5的傘部5 6的頂面上之厚度大 -39· (36) (36)200414140 約爲6mm的液狀的紫外線硬化性樹脂6〇的膜的表面,其 藉由先前剛從吐出噴嘴41被吐出的液狀的紫外線硬化性 樹脂60所形成的液狀的紫外線硬化性樹脂60的膜的表 面,成爲被吐出面。 在此’如前所述,當液狀的紫外線硬化性樹脂6〇, 從吐出噴嘴4 1,以〇 . 1 5毫升/秒的吐出速度,吐在被形成 於以20r.p.m的速度旋轉中的蓋55的傘部56的頂面上之 液狀的紫外線硬化性樹脂60的膜的表面上的時候,其所 开夕成的液狀的紫外線硬化性樹脂60的膜的厚度,與液狀 的紫外線硬化性樹脂6 0被吐在蓋5 5的傘部5 6的頂面上 之丨胃況相比’其厚度較小’大約變成2mm,所以從載物 台21將要旋轉三圈開始,液狀的紫外線硬化性樹脂6 〇, 變成從吐出噴嘴4 1被吐在已經被形成於蓋5 5的傘部5 6 的頂面上之厚度大約爲8 mm的液狀的紫外線硬化性樹脂 60的膜的表面上。 因此,當將吐出噴嘴41保持在從蓋55的傘部56的 頂面算起的距離爲8 m m之第3吐出位置,而從吐出噴嘴 4 1吐出液狀的紫外線硬化性樹脂6 0時,吐出噴嘴4 1的 吐出口有可能會接觸到被形成於正下方的液狀的紫外線硬 化性樹脂6 0的膜,而在被形成於記錄層3上的光透過層 4的表面,產生經脈狀的不均。 於是,在本實施形態中,控制單元3 0,讀出被記憶 在RAM32中的第4吐出位置資料,根據第4吐出位置資 料,生成第4吐出噴嘴定位訊號,再按照被記憶在 -40- (37) (37)200414140 RAM32中的將吐出噴嘴41定位的時序,在開始將液狀的 紫外線硬化性樹脂6 0吐在蓋5 5的傘部5 6的頂面上之 後,於載物台2 1將要旋轉三圈之前,將第4吐出噴嘴定 位訊號,輸出至吐出噴嘴馬達4 2,使吐出噴嘴4 1移動至 第4吐出位置,例如移動至僅比第3吐出位置更加地離開 蓋5 5的傘部5 6的頂面2mm之位置,亦即移動至與蓋5 5 的傘部5 6的頂面之間的距離爲1 〇 m m的位置處。 結果,從載物台2 1將要旋轉三圈開始,吐出噴嘴4 1 與被形成在蓋55的傘部56的頂面上之厚度大約爲8mm 的液狀的紫外線硬化性樹脂6 0的膜的表面之間的吐出距 離,被保持在大約2mm,而液狀的紫外線硬化性樹脂 6 0,則從吐出噴嘴4 1被吐在已經被形成於蓋5 5的傘部 5 6的頂面上之厚度大約爲8 mm的液狀的紫外線硬化性樹 脂6 0的膜的表面上。 如此’在本實施形態中,由於被構成··自液狀的紫外 線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出□,被吐在已 經被形成於蓋55的傘部56的頂面上之厚度大約爲8mm 的液狀的紫外線硬化性樹脂60膜的表面上,亦即從載物 台2 1將要旋轉三圈的時候開始,吐出噴嘴4 1便被保持 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲8 m m之液狀的紫外線硬化性樹 脂60的0吴的表面之間的距離,大約爲2mm的第4吐出位 置處,而液狀的紫外線硬化性樹脂6 0,則可以從吐出曈 -41 - (38) (38)200414140 嘴4 1的吐出口,吐在已經被形成於蓋5 5的傘部5 6的頂 面上之厚度大約爲8 mm的液狀的紫外線硬化性樹脂6 0的 膜的表面上;所以吐出噴嘴4 1的吐出口,並不會接觸被 形成在蓋5 5的傘部5 6的頂面上之厚度大約爲8mm的液 狀的紫外線硬化性樹脂60的膜,因此可以確實地防止: 由於吐出噴嘴4 1的吐出口,接觸被形成在蓋5 5的傘部 5 6的頂面上之液狀的紫外線硬化性樹脂60的膜,而在被 形成在記錄層3上的光透過層4,發生經脈狀的不均的可 能性。 進而,在本實施形態中,由於被構成:自液狀的紫外 線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出□,被吐在已 經被形成於蓋55的傘部56的頂面上之厚度大約爲8mm 的液狀的紫外線硬化性樹脂6 0膜的表面上,亦即從載物 台2 1將要旋轉三圈的時候開始,吐出噴嘴4 1便被保持 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲8mm之液狀的紫外線硬化性樹 脂6 0的@吴的表面之間的距離,大約爲2 m m的第4吐出位 置處;而液狀的紫外線硬化性樹脂60,則可以從吐出噴 嘴4 1的吐出口,吐在已經被形成於蓋5 5的傘部5 6的頂 面上之厚度大約爲8mm的液狀的紫外線硬化性樹脂60的 膜的表面上;所以在將液狀的紫外線硬化性樹脂60,從 吐出噴嘴4 1吐在已經被形成於蓋55的傘部56的頂面上 之厚度大約爲8mm的液狀的紫外線硬化性樹脂60的膜的 -42· (39) (39)200414140 表面上的時候,可以有效地防止:空氣被捲入液狀的紫外 線硬化性樹脂6 0中,而在所生成的光透過層4中,混入 氣泡的情況發生。 自開始從吐出噴嘴4 1,將液狀的紫外線硬化性樹脂 6 〇吐在蓋5 5的傘部5 6的頂面上之後算起,若載物台2 1 旋轉四圈,則吐出噴嘴4 1的吐出口,到達面對液狀的紫 外線硬化性樹脂6 0最初從吐出噴嘴4 1被吐在蓋5 5的傘 部5 6的頂面上的部分。 因此,在面對吐出噴嘴41的吐出口之蓋 5 5的傘部 5 6的頂面上,已經形成了厚度大約爲8 mm的液狀的紫外 線硬化性樹脂6 0的膜;又,由於被吐在蓋5 5的傘部5 6 的頂面上之液狀的紫外線硬化性樹脂60,被整平而展 開,所以在蓋5 5的傘部5 6的頂面,液狀的紫外線硬化性 樹脂的吐出開始之後,從載物台2 1將要旋轉四圈開始, 吐出噴嘴4 1的吐出口,變成面對被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲8 mm的液狀的紫外線硬化性樹 脂60的膜的表面。 另一方面,如前所述,液狀的紫外線硬化性樹脂60 開始吐在蓋5 5的傘部5 6的頂面上之後,由於液狀的紫外 線硬化性樹脂60,藉由先前剛從吐出噴嘴4 1被吐出的液 狀的紫外線硬化性樹脂60,而變成從吐出噴嘴4 1吐在被 形成於蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化性樹 脂6 0的膜的表面上,所以從載物台2 1將要旋轉四圈開 始’液狀的紫外線硬化性樹脂60,係變成從吐出噴嘴4】 -43- (40) (40)200414140 被吐在:被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲 8mm的液狀的紫外線硬化性樹脂6〇的膜的表面上,也就 是藉由先前剛從吐出噴嘴4 1被吐出的液狀的紫外線硬化 性樹脂6 0所形成的液狀的紫外線硬化性樹脂6 〇的膜的表 面上;所以,被形成在蓋5 5的傘部5 6的頂面上之厚度大 約爲8mm的液狀的紫外線硬化性樹脂6〇的膜的表面,其 藉由先前剛從吐出噴嘴4 1被吐出的液狀的紫外線硬化性 樹脂60所形成的液狀的紫外線硬化性樹脂60的膜的表 面,成爲被吐出面。 在此’如前所述,當液狀的紫外線硬化性樹脂60, 從吐出噴嘴4 1,以〇. 1 5毫升/秒的吐出速度,吐在被形成 於以2 0 !·· p · m的速度旋轉中的蓋5 5的傘部5 6的頂面上之 液狀的紫外線硬化性樹脂6 0的膜的表面上的時候,其所 形成的液狀的紫外線硬化性樹脂6 0的膜的厚度,與液狀 的紫外線硬化性樹脂6 0被吐在蓋5 5的傘部5 6的頂面上 之情況相比,其厚度較小,大約變成2 m m,所以從載物 台2 1將要旋轉四圈開始,液狀的紫外線硬化性樹脂6〇, 變成從吐出噴嘴4 1被吐在已經被形成於蓋5 5的傘部5 6 的頂面上之厚度大約爲1 〇mm的液狀的紫外線硬化性樹脂 6 0的fl吴的表面上。 因此,當將吐出噴嘴41保持在從蓋5 5的傘部5 6的 頂面算起的距離爲1 0 m m之第4吐出位置,而從吐出噴嘴 4 1吐出液狀的紫外線硬化性樹脂60時,吐出噴嘴4 1的 吐出口有可能會接觸到被形成於正下方的液狀的紫外線硬 -44- (41) (41)200414140 化性樹脂6 0的膜,而在被形成於記錄層3上的光透過層 4的表面,產生經脈狀的不均。 於是,在本實施形態中,控制單元3 0,讀出被記憶 在RAM32中的第5吐出位置資料,根據第5吐出位置資 料’生成第 5吐出噴嘴定位訊號,再按照被記憶在 RAM32中的將吐出噴嘴41定位的時序,在開始將液狀的 紫外線硬化性樹脂6 0吐在蓋5 5的傘部5 6的頂面上之 後,於載物台2 1將要旋轉四圈之前,將第5吐出噴嘴定 位訊號,輸出至吐出噴嘴馬達42,使吐出噴嘴41移動至 第5吐出位置,例如移動至僅比第4吐出位置更加地離開 蓋55的傘部56的頂面2mm之位置,亦即移動至與蓋55 的傘部5 6的頂面之間的距離爲1 2mm的位置處。 結果,從載物台2 1將要旋轉四圈開始,吐出噴嘴4 1 與被形成在蓋55的傘部56的頂面上之厚度大約爲10mm 的液狀的紫外線硬化性樹脂60的膜的表面之間的吐出距 離,被保持在大約2mm,而液狀的紫外線硬化性樹脂 60,則從吐出噴嘴41被吐在已經被形成於蓋55的傘部 5 6的頂面上之厚度大約爲1 〇mm的液狀的紫外線硬化性 樹脂6 0的膜的表面上。 如此,在本實施形態中,由於被構成:自液狀的紫外 線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出口,被吐在已 經被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲〗〇mm 的液狀的紫外線硬化性樹脂6 0膜的表面上,亦即從載物 台2 1將要旋轉四圈的時候開始,吐出噴嘴4 1便被保持 -45- (42) (42)200414140 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋5 5的傘部 5 6的頂面上之厚度大約爲1 0mm之液狀的紫外線硬化性 樹脂60的膜的表面之間的距離,大約爲2mm的第5吐出 位置處;而液狀的紫外線硬化性樹脂60,則可以從吐出 噴嘴4 1的吐出口,吐在已經被形成於蓋5 5的傘部5 6的 頂面上之厚度大約爲1 0 m m的液狀的紫外線硬化性樹脂 6 0的膜的表面上;所以吐出噴嘴4 1的吐出□,並不會接 觸被形成在蓋55的傘部56的頂面上之厚度大約爲10mm 的液狀的紫外線硬化性樹脂6 0的膜,因此可以確實地防 止:由於吐出噴嘴4 1的吐出□,接觸被形成在蓋5 5的傘 部5 6的頂面上之液狀的紫外線硬化性樹脂6 0的膜,而在 被形成在記錄層3上的光透過層4,發生經脈狀的不均的 可能性。 進而,在本實施形態中,由於被構成:自液狀的紫外 線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出口,被吐在已 經被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲1 〇mm 的液狀的紫外線硬化性樹脂60膜的表面上,亦即從載物 台2 1將要旋轉四圈的時候開始,吐出噴嘴41便被保持 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋55的傘部 5 6的頂面上之厚度大約爲1 0mm之液狀的紫外線硬化性 樹脂60的膜的表面之間的距離,大約爲2mm的第5吐出 位置處;而液狀的紫外線硬化性樹脂6 0,則可以從吐出 -46- (43) (43)200414140 噴嘴4 1的吐出口,吐在已經被形成於蓋5 5的傘部5 6的 頂面上之厚度大約爲1 0 m m的液狀的紫外線硬化性樹脂 6〇的膜的表面上;所以在將液狀的紫外線硬化性樹脂 6 0,從吐出噴嘴4 1吐在已經被形成於蓋5 5的傘部5 6的 頂面上之厚度大約爲1 〇mm的液狀的紫外線硬化性樹脂 60的膜的表面上的時候,可以有效地防止:空氣被捲入 液狀的紫外線硬化性樹脂6 0中,而在所生成的光透過層 4中,混入氣泡的情況發生。 在本實施形態中,在開始將液狀的紫外線硬化性樹脂 吐在蓋5 5的傘部5 6的頂面上之後,載物台2 1大約旋轉 4.4圈;也就是從吐出噴嘴41,開始將液狀的紫外線硬化 性樹脂60吐在蓋55的傘部56的頂面上算起,大約13.3 秒之後,從吐出噴嘴4來的液狀的紫外線硬化性樹脂6 〇 的吐出被結束。 一旦液狀的紫外線硬化性樹脂6 0的吐出結束,控制 單兀30將退避訊號輸出至吐出噴嘴馬達42,使吐出噴嘴 41離開載物台21而退避至退避位置,並將第2驅動訊號 輸出至載物台馬達3 4,使載物台2 1以高速旋轉,例如以 2000r.p.m速度旋轉。 結果,朝向蓋5 5的傘部5 6的頂面被吐出的液狀的紫 外線硬化性樹脂6 0,利用藉由載物台2 1的旋轉所產生的 離心力’朝向資料記錄單元5 0的周邊部,展開至資料記 錄單元50的記錄層3上,如第12圖所示,具有規定厚度 例如大約1 0 〇 # m的膜厚的紫外線硬化性樹脂6 0的薄 •47- (44) (44)200414140 膜,被形成在資料記錄單元5 0的記錄層3上。 一旦在資料記錄單元5 0的記錄層3上,形成紫外線 硬化性樹脂6 0的薄膜,則控制單元3 〇,將第3驅動訊號 輸出至載物台馬達3 4,並將驅動訊號輸出至紫外線燈 44 〇 結果’藉由載物台馬達34,被固定在第1突出部22 和第2突出部2 3以及載物台2 1上的資料記錄單元5 0、 以及被固定在資料記錄單元50上的蓋55,一體地以中等 程度的速度旋轉,並將紫外線燈44開啓,如第丨3圖所 不’紫外線4 5照射在被形成在資料記錄單元5 〇的記錄層 3上之紫外線硬化性樹脂6 〇的薄膜上。 照射紫外線,一旦紫外線硬化性樹脂6〇的薄膜,有 一定程度地被硬化,控制單元3 〇則將驅動停止訊號輸出 至紫外線燈44,使紫外線燈44關閉;而且,控制單元3 0 將驅動停止訊號輸出至載物台馬達3 4,使載物台馬達3 4 的作動停止;進而,控制單元3 0,將作動停止訊號輸出 至第2吸氣泵3 6,使第2吸氣泵3 6的作動停止。 接著,控制單元3 0,將第2驅動訊號輸出至第2臂 移動手段4 0,藉由第2臂3 9,把持蓋5 5的支持軸5 7, 將蓋5 5從資料記錄單元5 0上取去。 一旦蓋55從資料記錄單元50上被取去,控制單元 3 〇再度將驅動訊號輸出至紫外線燈44,使紫外線燈44開 啓,將紫外線4 5照射在被形成於資料記錄單元5 〇的記錄 層3上的液狀的紫外線硬化性樹脂6 0的薄膜上。 -48· (45) (45)200414140 經過規定的時間’ 一旦被形成在資料記錄單元5〇的 記錄層3上的液狀的紫外線硬化性樹脂6 〇的薄膜完全地 硬化,形成光透過層4,而生成光碟片1時,控制單元3〇 將驅動停止訊號輸出至紫外線燈44,使紫外線燈4 4關 閉’並將驅動停止訊號輸出至第1吸氣栗3 5,使第1吸 氣泵3 5的作動停止。 接著,控制單元3 0,將第2驅動訊號輸出至第1臂 移動手動38,藉由第1臂37的吸引墊(未圖示),吸引光 碟片1的夾緊區域7,利用第1臂3 7將光碟片1從旋轉 塗佈裝置1 0取去。 如此’藉由旋轉塗佈,光透過層4被形成,而生成光 碟片1。 若根據本實施形態,當開始將液狀的紫外線硬化性樹 脂6 0,從吐出噴嘴4 1吐在蓋5 5的傘部5 6的頂面上之 時,由於係構成將吐出噴嘴4 1保持在第1吐出位置處, 也就是保持在吐出噴嘴4 1的吐出口和應該吐出液狀的紫 外線硬化性樹脂之被吐出面也就是蓋5 5的傘部5 6之頂面 之間的距離,爲4 m m的位置處,然後從吐出噴嘴4 1,將 液狀的紫外線硬化性樹脂6 0,吐在蓋5 5的傘部5 6的頂 面上’所以當從吐出噴嘴4 1將液狀的紫外線硬化性樹脂 6 〇吐在蓋5 5的傘部5 6的頂面上之時,可以有效地防 止:空氣被捲入液狀的紫外線硬化性樹脂60中,而在所 生成的光透過層4中,混入氣泡的情況發生。 又,若根據本實施形態,由於被構成:從吐出噴嘴 •49- (46) (46)200414140 4 1 ’往蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化性樹 脂60的吐出被開始,而在蓋55的傘部56的頂面上,液 狀的紫外線硬化性樹脂60的膜被形成之後,至載物台2 1 將要旋轉一圈爲止的期間,吐出噴嘴4 1係被保持在:吐 出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化性樹脂 6〇之被吐出面也就是液狀的紫外線硬化性樹脂60的膜的 表面之間的距離,爲1 .5mm的第1吐出位置處;而液狀 的紫外線硬化性樹脂60,則可以從吐出噴嘴4 1,吐在已 經被形成於蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化 性樹脂60的膜的表面上;所以吐出噴嘴4丨的吐出口,並 不會接觸被形成在蓋5 5的傘部5 6的頂面上之液狀的紫外 線硬化性樹脂60的膜,因此可以確實地防止:由於吐出 噴嘴41的吐出口,接觸被形成在蓋5 5的傘部5 6的頂面 上之液狀的紫外線硬化性樹脂60的膜,而在被形成在記 錄層3上的光透過層4,發生經脈狀的不均的可能性;並 且,在將液狀的紫外線硬化性樹脂6 0,從吐出噴嘴4 1吐 在液狀的紫外線硬化性樹脂6 0的膜的表面上的時候,可 以有效地防止·空氣被捲入液狀的紫外線硬化性樹脂6 0 中’而在所生成的光透過層4中,混入氣泡的情況發生。 進而’若根據本實施形態,由於被構成:自液狀的紫 外線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出口,被吐在 已經被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲 4mm的液狀的紫外線硬化性樹脂6〇膜的表面上,亦即從 載物台2 1將要旋轉一圈的時候開始,吐出噴嘴4 1便被保 -50- (47) (47) 200414140 持在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬 化性樹脂60之被吐出面也就是已經被形成在蓋55的傘部 5 6的頂面上之厚度大約爲4mm之液狀的紫外線硬化性樹 脂6 0的膜的表面之間的距離,大約爲2 m m的第2吐出位 置處;而液狀的紫外線硬化性樹脂6 0,則可以從吐出噴 嘴41的吐出口,吐在已經被形成於蓋55的傘部56的頂 面上之厚度大約爲4mm的液狀的紫外線硬化性樹脂60的 膜的表面上;所以吐出噴嘴4 1的吐出口,並不會接觸被 形成在蓋5 5的傘部5 6的頂面上之厚度大約爲4mm的液 狀的紫外線硬化性樹脂60的膜,因此可以確實地防止: 由於吐出噴嘴41的吐出口,接觸被形成在蓋55的傘部 5 6的頂面上之液狀的紫外線硬化性樹脂6 〇的膜,而在被 形成在記錄層3上的光透過層4,發生經脈狀的不均的可 能性。並且,在將液狀的紫外線硬化性樹脂60,從吐出 噴嘴4 1吐在已經被形成於蓋5 5的傘部5 6的頂面上之厚 度大約爲4mm的液狀的紫外線硬化性樹脂6 0的膜的表面 上的時候’可以有效地防止:空氣被捲入液狀的紫外線硬 化性樹脂6 0中,而在所生成的光透過層4中,混入氣泡 的情況發生。 又’若根據本實施形態,由於被構成:自液狀的紫外 線硬化性樹脂60變成從吐出噴嘴4 1的吐出□,被吐在已 經被形成於蓋55的傘部56的頂面上之厚度大約爲6mm 的液狀的紫外線硬化性樹脂6 0膜的表面上,亦即從載物 台2 1將要旋轉二圈的時候開始,吐出噴嘴4 1便被保持 -51 - (48) (48)200414140 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋55的傘部 5 6的頂面上之厚度大約爲6mm之液狀的紫外線硬化性樹 脂6 0的膜的表面之間的距離,大約爲2 nirn的第3吐出位 置處;而液狀的紫外線硬化性樹脂60,則可以從吐出噴 嘴4 1的吐出口,吐在已經被形成於蓋55的傘部56的頂 面上之厚度大約爲6mm的液狀的紫外線硬化性樹脂60的 膜的表面上;所以吐出噴嘴4 1的吐出口,並不會接觸被 形成在蓋5 5的傘部5 6的頂面上之厚度大約爲6mm的液 狀的紫外線硬化性樹脂60的膜,因此可以確實地防止: 由於吐出噴嘴41的吐出□,接觸被形成在蓋5 5的傘部 5 6的頂面上之液狀的紫外線硬化性樹脂的膜,而在被 形成在記錄層3上的光透過層4,發生經脈狀的不均的可 能性。並且’在將液狀的紫外線硬化性樹脂6 0,從吐出 噴嘴4 1吐在已經被形成於蓋5 5的傘部5 6的頂面上之厚 度大約爲6mm的液狀的紫外線硬化性樹脂60的膜的表面 上的時候’可以有效地防止:空氣被捲入液狀的紫外線硬 化性樹脂6 0中,而在所生成的光透過層4中,混入氣泡 的情況發生。 進而’若根據本實施形態,由於被構成:自液狀的紫 外線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出口,被吐在 已經被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲 8mm的液狀的紫外線硬化性樹脂膜的表面上,亦即從 載物台2 1將要旋轉三圈的時候開始,吐出噴嘴4 1便被保 -52- (49) (49)200414140 持在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬 化性樹脂60之被吐出面也就是已經被形成在蓋55的傘部 5 6的頂面上之厚度大約爲8mm之液狀的紫外線硬化性樹 脂6 0的膜的表面之間的距離,大約爲2 m m的第4吐出位 置處;而液狀的紫外線硬化性樹脂60,則可以從吐出噴 嘴4 1的吐出口,吐在已經被形成於蓋5 5的傘部5 6的頂 面上之厚度大約爲8mm的液狀的紫外線硬化性樹脂60的 膜的表面上;所以吐出噴嘴4 1的吐出口,並不會接觸被 形成在蓋5 5的傘部5 6的頂面上之厚度大約爲8 m m的液 狀的紫外線硬化性樹脂60的膜,因此可以確實地防止: 由於吐出噴嘴41的吐出口,接觸被形成在蓋5 5的傘部 5 6的頂面上之液狀的紫外線硬化性樹脂6〇的膜,而在被 形成在記錄層3上的光透過層4,發生經脈狀的不均的可 能性。並且,在將液狀的紫外線硬化性樹脂60,從吐出 噴嘴4 1吐在已經被形成於蓋5 5的傘部5 6的頂面上之厚 度大約爲8mm的液狀的紫外線硬化性樹脂60的膜的表面 上的時候,可以有效地防止:空氣被捲入液狀的紫外線硬 化性樹脂6 0中,而在所生成的光透過層4中,混入氣泡 的情況發生。 又,若根據本實施形態,由於被構成:自液狀的紫外 線硬化性樹脂6 0變成從吐出噴嘴4 1的吐出口,被吐在已 經被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲〗〇nim 的液狀的紫外線硬化性樹脂6 〇膜的表面上,亦即從載物 台2 ]將要旋轉四圈的時候開始,吐出噴嘴4 1便被保持 -53- (50) (50)200414140 在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化 性樹脂60之被吐出面也就是已經被形成在蓋55的傘部 5 6的頂面上之厚度大約爲1 〇 m m之液狀的紫外線硬化性 樹脂6 0的膜的表面之間的距離,大約爲2 m m的第5吐出 位置處;而液狀的紫外線硬化性樹脂6 0,則可以從吐出 噴嘴4 1的吐出口,吐在已經被形成於蓋5 5的傘部5 6的 頂面上之厚度大約爲1 〇 m m的液狀的紫外線硬化性樹脂 6 0的膜的表面上;所以吐出噴嘴4 1的吐出口,並不會接 觸被形成在蓋55的傘部56的頂面上之厚度大約爲10 mm 的液狀的紫外線硬化性樹脂6 0的膜,因此可以確實地防 止:由於吐出噴嘴41的吐出□,接觸被形成在蓋55的傘 部56的頂面上之液狀的紫外線硬化性樹脂60的膜,而在 被形成在記錄層3上的光透過層4,發生經脈狀的不均的 可能性。並且,在將液狀的紫外線硬化性樹脂6 0,從吐 出噴嘴4 1吐在已經被形成於蓋5 5的傘部5 6的頂面上之 厚度大約爲1 的液狀的紫外線硬化性樹脂6 〇的膜的 表面上的時候,可以有效地防止:空氣被捲入液狀的紫外 線硬化性樹脂6 0中,而在所生成的光透過層4中,混入 氣泡的情況發生。 以下,爲了更明確地說明本發明的效果,揭示出實施 例。 (實施例) 如以下所示地製作再生用光碟片。 •54- (51) 200414140 在形成有保存資料的微坑,且形成外徑爲 厚度1.2mm而在其中央部有內徑15mm的中心孔 酯製的碟片狀基板上,藉由濺鍍,形成由鋁所構 層。 接著,使用具備傘部且在傘部的頂面的中央 徑 2mm的把持軸之蓋,而前述傘部具有圓形的 其頂面的直徑爲 26mm、底面的直徑爲 36mm 5 mm,而其側面的投影形狀爲梯形;來塞住碟片 中心孔,然後在反射層的表面,形成光透過層。 將不銹鋼切削後,進行表面硏磨所作成者。 首先,將形成有反射層的碟片狀基板,載置 物台上,接著,爲了塞住中心孔,將蓋載置在碟 上。 進而,使中心孔附近降壓,來將蓋和碟片狀 在旋轉載物台上,使其固定。 接著,一邊使旋轉載物台以20r.p.m的速度 邊將在25°C時的黏度爲48 00百分泊的液狀的紫 性樹脂,從具有直徑爲2.4mm的吐出口之吐出 在蓋的傘部的頂面上。 從吐出噴嘴吐出的液狀的紫外線硬化性樹脂 度’爲0.15毫升/秒,吐出量爲2毫升。 吐出噴嘴,控制其垂直方向的位置,而使吐 吐出口、和應該吐出液狀的紫外線硬化性樹脂之 之間的吐出距離,能夠經常等於距離D,而將液 12 0mm、 之聚碳酸 成的反射 形成有直 頂面,且 、高度爲 狀基板的 蓋係使用 於旋轉載 片狀基板 基板吸引 旋轉,一 外線硬化 噴嘴,吐 的吐出速 出噴嘴的 被吐出面 狀的紫外 -55- (52) (52)200414140 線硬化性樹脂,吐在被吐出面上。 亦即,吐出噴嘴,在液狀的紫外線硬化性樹脂開始吐 出時’係使其位於吐出噴嘴的吐出口、和應該吐出液狀的 紫外線硬化性樹脂之被吐出面也就是蓋的傘部的頂面之間 的吐出距離,等於距離D的位置處;而在開始將液狀的 紫外線硬化性樹脂,從吐出噴嘴,吐在蓋的傘部的頂面上 之後,爲了使吐出噴嘴的吐出口、和被形成在蓋的傘部的 頂面上之應該吐出液狀的紫外線硬化性樹脂之被吐出面也 就是液狀的紫外線硬化性樹脂的膜的表面之間的吐出距 離,能夠等於距離D,而一邊控制吐出噴嘴的垂直方向的 位置,一邊從吐出噴嘴,朝向蓋的傘部的頂面,吐出液狀 的紫外線硬化性樹脂。 吐出噴嘴的位置,係預先根據相同的條件,測量將在 2 5 °C時的黏度爲4 8 0 0百分泊的液狀的紫外線硬化性樹 脂,吐在蓋的傘部的頂面上,從液狀的紫外線硬化性樹脂 開始吐出之後的旋轉載物台的旋轉量,亦即測量從液狀的 紫外線硬化性樹脂開始吐出之後的經過時間;及被形成在 蓋的傘部的頂面上之液狀的紫外線硬化性樹脂的膜的厚度 之間的關係,然後根據所得到的資料,藉由控制使吐出噴 嘴往垂直方向移動的脈衝馬達,來進行控制。 繼續大約1 3秒,從吐出噴嘴朝向蓋的傘部的頂面, 吐出液狀的紫外線硬化性樹脂之後,使旋轉載物台,以 2 0 0 0 r · p · m的速度,持續1 〇秒地旋轉,使被吐出在蓋的傘 部的頂面上的液狀的紫外線硬化性樹脂,展開至碟片狀基 -56- (53) 200414140 板的反射層上,而形成紫外線硬化性樹脂的薄膜。 將蓋從碟片狀基板取去之後,使紫外線照射在紫外線 硬化性樹脂的薄膜上,來使紫外線硬化性樹脂的薄膜硬 化,形成光透過層,而製作出光碟片。 改變吐出噴嘴的吐出口、及應該吐出液狀的紫外線硬 化性樹脂之被吐出面之間的距離,從吐出噴嘴,朝向蓋的 傘部的頂面,吐出紫外線硬化性樹脂,來形成光透過層, 而分別製作出1 〇枚的光碟片。 使用Dr.SCENK股份有限公司製造的泛用型光碟片外 觀缺陷檢查機,來檢查在所得到的光透過層中,是否含有 氣泡。 檢查結果顯示於表1中。 表1 D ( m m) 0.3 0.5 1 3 5 6 7 8 有無氣泡 X 〇 〇 〇 〇 Δ ▲ X 有無筋脈狀 B A A A A A A A 的不均FIG. 11 shows a liquid ultraviolet curable resin 60, which is discharged from the discharge nozzle 41 to a liquid state having a thickness of about 4 mm on the top surface of the umbrella portion 5 6 which has been formed on the cover 55. A slightly enlarged sectional view of the state on the surface of the film of the ultraviolet curable resin 60. After starting to discharge the liquid ultraviolet curable resin 60 from the discharge nozzle 41 to the top surface of the umbrella portion 56 of the cover 55, if the stage 21 rotates twice, the discharge of the nozzle 41 is discharged. The outlet reaches a portion facing the liquid ultraviolet curable resin 60 which is first discharged from the discharge nozzle 41 on the top surface of the umbrella portion 56 of the cover 55. Therefore, liquid UV-34- (31) (31) 200414140 linear hardening of a thickness of about 4 mm has been formed on the top surface of the umbrella portion 5 6 of the cover 5 5 facing the discharge opening of the discharge nozzle 41. A film of resin 60, and the liquid ultraviolet curable resin 60, which was spit on the top surface of the umbrella portion 5 6 of the cover 5 5, was flattened and unfolded, so the umbrella portion 5 of the cover 5 5 After the discharge of the liquid ultraviolet-curable resin on the top surface of 6 is started, the stage 21 will be rotated two times, and the discharge opening of the nozzle 41 will face the umbrella portion 5 formed on the cover 5 5 The top surface of 6 is the surface of a film of liquid ultraviolet curable resin 60 having a thickness of about 4 mm. On the other hand, as described above, after the liquid ultraviolet curable resin 60 starts to spit on the top surface of the umbrella portion 56 of the cover 5 5, the liquid ultraviolet curable resin 60 is The liquid ultraviolet curable resin 60 discharged from the discharge nozzle 41 is discharged into a liquid ultraviolet curable resin 6 discharged from the discharge nozzle 41 on the top surface of the umbrella portion 5 6 formed on the cover 5 5. On the surface of the film of 0, the liquid ultraviolet curable resin 6 0 starts to be rotated two times from the stage 21, and is changed from the discharge nozzle 4 1 to be spit out: formed on the umbrella portion 5 of the cover 5 5 The top surface of 6 is a liquid ultraviolet curable resin 60 having a thickness of about 4 mm on the surface of the film, that is, the liquid ultraviolet curable resin 60 that was previously discharged from the discharge nozzle 41 before. The liquid ultraviolet curable resin 6 is formed on the surface of the film; therefore, the liquid ultraviolet curable resin 6 having a thickness of about 4 mm is formed on the top surface of the umbrella portion 56 of the cover 55. The surface of the film, which is formed by the liquid ultraviolet light just discharged from the discharge nozzle 41 The surface of the liquid film of the ultraviolet curable resin 6〇 curable resin 60 is formed, the surface becomes to be discharged. Here, as described above, when the liquid ultraviolet curable resin 60, -35- (32) (32) 200414140 is ejected from the ejection nozzle 41 at a ejection speed of 0.15 ml / sec, it is formed. When the liquid UV-curable resin 60 on the top surface of the umbrella portion 5 6 of the cover 5 5 which is rotating at a speed of 20 r · p · m is on the surface of the film, the resulting liquid The thickness of the film of the ultraviolet curable resin 60 is smaller than that of the case where the liquid ultraviolet curable resin 60 is spit on the top surface of the umbrella portion 56 of the cover 5 5, so it is about 2 mm, so Starting from the stage 2 1 which is to be rotated twice, the liquid ultraviolet curable resin 6 0 becomes approximately the thickness of the upper surface of the umbrella portion 5 6 which has been formed on the cover 5 5 from the ejection nozzle 41. It was 6 mm on the surface of the film of the liquid ultraviolet curable resin 60. Therefore, when the discharge nozzle 41 is held at the second discharge position having a distance of 6 mm from the top surface of the umbrella portion 5 6 of the cover 55, the liquid ultraviolet curable resin 60 is discharged from the discharge nozzle 41. At this time, the discharge port of the discharge nozzle 41 may come into contact with the film of the liquid ultraviolet curable resin 60 formed immediately below, and may be generated on the surface of the light transmitting layer 4 formed on the recording layer 3. Meridian irregularities. Then, in this embodiment, the control unit 30 reads out the third discharge position data stored in the RAM 32 and generates the third discharge nozzle positioning signal based on the third discharge position data. In the timing of positioning the ejection nozzle 41, after the liquid ultraviolet curable resin 60 is started to be ejected on the top surface of the umbrella portion 5 6 of the cover 5 5, before the stage 21 is rotated twice, the first 3 The ejection nozzle positioning signal is output to the ejection nozzle motor 4 2 to move the ejection nozzle 41 to the third ejection position, for example, to move farther than the second ejection position -36- (33) (33) 200414140 cover 55 The top surface of the umbrella portion 56 is 2 mm, that is, it is moved to a position where the distance from the top surface of the umbrella portion 56 of the cover 55 is 8 mm. As a result, starting from the stage 2 1 to be rotated twice, the nozzle 4} and the liquid ultraviolet curable resin 60 having a thickness of about 6 mm formed on the top surface of the umbrella portion 5 6 of the cover 5 5 are discharged. The ejection distance between the surfaces of the film is maintained at about 2 mm, and the liquid ultraviolet curable resin 60 is ejected from the ejection nozzle 41 on the top surface of the umbrella portion 5 6 that has been formed on the cover 5 5. The liquid ultraviolet curable resin 60 having a thickness of about 6 mm is on the surface of the film. As described above, in this embodiment, since it is configured that the liquid ultraviolet curable resin 60 becomes a discharge opening from the discharge nozzle 41, it is discharged onto the top surface of the umbrella portion 56 which has been formed on the cover 55. On the surface of the liquid UV-curable resin 60 film having a thickness of about 6 mm, that is, when the stage 21 is rotated twice, the ejection nozzle 41 is held at: the ejection outlet of the ejection nozzle 41 And the liquid ultraviolet curable resin 60 which is to be discharged, that is, a film of the liquid ultraviolet curable resin 60 having a thickness of about 6 mm which has been formed on the top surface of the umbrella portion 56 of the cover 5 5 The distance between the surfaces is about 2 mm at the third discharge position. The liquid ultraviolet curable resin 60 can be discharged from the discharge opening of the discharge nozzle 41 into the umbrella portion 56 which has been formed on the cover 55. The top surface has a thickness of about 6 mm on the surface of the film of the liquid ultraviolet curable resin 60; therefore, the discharge opening of the discharge nozzle 41 does not contact the top surface of the umbrella portion 5 6 formed on the cover 5 5 Liquid UV-curable with a thickness of about 6 mm The film of the flexible resin 60 can reliably prevent: • 37- (34) (34) 200414140 Due to the discharge from the discharge nozzle 41, contact with the liquid state formed on the top surface of the umbrella portion 5 6 of the cover 5 5 In the film of the ultraviolet curable resin 60, the light transmitting layer 4 formed on the recording layer 3 may cause irregularities in the shape of meridians. Furthermore, in this embodiment, since it is configured that the liquid ultraviolet curable resin 60 becomes a discharge port from the discharge nozzle 41, the thickness is discharged on the top surface of the umbrella portion 56 that has been formed on the cover 55. Approximately 6 mm of liquid UV-curable resin 60 on the surface of the film, that is, when the stage 21 is about to rotate twice, the nozzle 4! Is held at: the outlet of the nozzle 41 The film of liquid ultraviolet curable resin 60 having a thickness of about 6 mm and the discharge surface of the liquid ultraviolet curable resin 60 which should be discharged, that is, has been formed on the top surface of the umbrella portion 5 6 of the cover 5 5. The distance between the surfaces is about 2 mm at the third discharge position; and the liquid ultraviolet curable resin 60 can be discharged from the discharge opening of the discharge nozzle 41 into the umbrella portion 56 which has been formed on the cover 55. The top surface has a thickness of about 6 mm on the surface of the film of the liquid ultraviolet curable resin 60; therefore, the liquid ultraviolet curable resin 60 is discharged from the discharge nozzle 41 to the cover which has been formed. 5 5 The thickness of the top surface of the umbrella part 5 6 is large When the liquid ultraviolet curable resin 60 is about 6 mm on the surface of the film, it is possible to effectively prevent: air is caught in the liquid ultraviolet curable resin 60 and the generated light transmitting layer is In 4, the occurrence of air bubbles. After starting to discharge the liquid ultraviolet curable resin 60 from the ejection nozzle 41 ′ onto the top surface of the umbrella portion 56 of the cover 55, if the stage 21 -38- (35) (35) 200414140 rotates three times Then, the ejection outlet of the ejection nozzle 41 reaches the portion facing the liquid ultraviolet curable resin 60 which is initially ejected from the ejection nozzle 41 on the top surface of the umbrella portion 56 of the cover 55. Therefore, a film of liquid ultraviolet curable resin 60 having a thickness of about 6 mm has been formed on the top surface of the umbrella portion 5 6 of the cover 5 5 facing the discharge opening of the discharge nozzle 41; The liquid ultraviolet curable resin 60 that has been spit on the top surface of the umbrella portion 5 6 of the cover 5 5 is flattened and unfolded. Therefore, the liquid ultraviolet curable liquid is on the top surface of the umbrella portion 5 6 of the cover 5 5. After the resin discharge has started, starting from the stage 21 that will rotate three times, the discharge opening of the discharge nozzle 41 becomes a liquid having a thickness of approximately 6 mm facing the top surface of the umbrella portion 56 formed on the cover 55. The surface of the film of the UV curable resin 60. On the other hand, as described above, after the liquid ultraviolet curable resin 60 starts to spit on the top surface of the umbrella portion 56 of the cover 55, the liquid ultraviolet curable resin 60 0 ' The liquid ultraviolet curable resin 60 discharged from the discharge nozzle 41 becomes a liquid ultraviolet curable resin 6 discharged from the discharge nozzle 41 on the top surface of the umbrella portion 5 6 formed on the cover 5 5. 0 on the surface of the film, so that the liquid ultraviolet curable resin 6 0 will be rotated three times from the stage 2 1, and it will be discharged from the discharge nozzle 4 1. It will be spit out at the umbrella part of the cover 5 5 The surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 6 mm on the top surface of 5 is formed by the liquid ultraviolet curable resin 60 that was previously discharged from the discharge nozzle 41. On the surface of the film of the liquid ultraviolet curable resin 60; therefore, the thickness formed on the top surface of the umbrella portion 5 6 of the cover 5 5 is large -39 · (36) (36) 200414140 about 6mm The surface of the film of the liquid ultraviolet curable resin 60 was ejected from the ejection nozzle 41 just before. The surface of the film of liquid ultraviolet curing resin 60 is a liquid ultraviolet curable resin 60 is formed, the surface becomes to be discharged. Here, as described above, when the liquid ultraviolet curable resin 60 is discharged from the ejection nozzle 41 to 0.1.  A spitting speed of 15 ml / s, spitting is formed at 20r. p. When the liquid UV-curable resin 60 on the top surface of the umbrella portion 56 of the cover 55 is rotating at a speed of m, the liquid UV-curable resin 60 The thickness is smaller than the thickness of the ultraviolet-curable resin 60 which is spit on the top surface of the umbrella portion 5 6 of the cover 5 5. The thickness is about 2 mm. After three rotations, the liquid UV-curable resin 6 〇 becomes a liquid having a thickness of about 8 mm, which is discharged from the discharge nozzle 41 1 on the top surface of the umbrella portion 5 6 that has been formed on the cover 5 5. The surface of the film of the ultraviolet curable resin 60. Therefore, when the discharge nozzle 41 is held at the third discharge position at a distance of 8 mm from the top surface of the umbrella portion 56 of the cover 55, and the liquid ultraviolet curable resin 60 is discharged from the discharge nozzle 41, The discharge port of the discharge nozzle 41 may come into contact with the film of the liquid ultraviolet curable resin 60 formed directly below, and the surface of the light transmitting layer 4 formed on the recording layer 3 may have a meridian shape. Uneven. Therefore, in this embodiment, the control unit 30 reads out the fourth ejection position data stored in the RAM 32, generates a fourth ejection nozzle positioning signal based on the fourth ejection position data, and stores the fourth ejection nozzle positioning signal according to the fourth ejection position data. (37) (37) 200414140 The timing of positioning the ejection nozzle 41 in the RAM 32 starts to spit a liquid ultraviolet curable resin 60 on the top surface of the umbrella portion 5 6 of the cover 5 5 and then on the stage. 2 1 Before the third rotation, the fourth discharge nozzle positioning signal is output to the discharge nozzle motor 4 2 to move the discharge nozzle 41 to the fourth discharge position, for example, to move away from the cover 5 more than the third discharge position. The top surface of the umbrella portion 5 6 of 5 is 2 mm, that is, it is moved to a position where the distance from the top surface of the umbrella portion 56 of the cover 5 5 is 10 mm. As a result, starting from the stage where the stage 21 is to be rotated three times, the film of the liquid ultraviolet curable resin 60 having a thickness of about 8 mm and the nozzle 4 1 and the upper surface of the umbrella portion 56 of the cover 55 is discharged. The ejection distance between the surfaces is maintained at about 2 mm, and the liquid ultraviolet curable resin 60 is ejected from the ejection nozzle 41 on the top surface of the umbrella portion 5 6 that has been formed on the cover 5 5. On the surface of a film of liquid ultraviolet curable resin 60 having a thickness of about 8 mm. As described above, in this embodiment, since the self-liquid ultraviolet curable resin 60 is configured to be discharged from the discharge nozzle 41, it is discharged onto the top surface of the umbrella portion 56 that has been formed on the cover 55. On the surface of the liquid UV-curable resin 60 film having a thickness of about 8 mm, that is, when the stage 21 is to be rotated three times, the ejection nozzle 41 is maintained at: the ejection of the ejection nozzle 41 The exit surface of the liquid ultraviolet curable resin 60 which is to be discharged is a liquid ultraviolet curable resin 60 having a thickness of about 8 mm which has been formed on the top surface of the umbrella portion 56 of the cover 55. The distance between the surfaces of 0 Wu is about the 4th discharge position of 2mm, and the liquid ultraviolet curable resin 60 can be discharged from the 曈 -41-(38) (38) 200414140 mouth 4 1 The outlet is ejected on the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 8 mm which has been formed on the top surface of the umbrella portion 5 6 of the cover 5 5; therefore, the ejection outlet of the nozzle 41 is ejected. And does not touch the thickness of the top surface of the umbrella portion 5 6 formed on the cover 5 5 is approximately The 8 mm liquid ultraviolet curable resin 60 film can be reliably prevented from contacting the liquid ultraviolet curing formed on the top surface of the umbrella portion 5 6 of the cover 5 5 due to the discharge opening of the discharge nozzle 41. In the film of the flexible resin 60, the light transmitting layer 4 formed on the recording layer 3 may cause irregularities in the shape of a meridian. Furthermore, in this embodiment, since it is configured that the liquid ultraviolet curable resin 60 is discharged from the discharge nozzle 41, it is discharged onto the top surface of the umbrella portion 56 that has been formed on the cover 55. On the surface of the liquid UV-curable resin 60 film having a thickness of about 8 mm, that is, when the stage 21 is to be rotated three times, the ejection nozzle 41 is maintained at: the ejection of the ejection nozzle 41 The exit surface of the liquid ultraviolet curable resin 60 which is to be discharged is a liquid ultraviolet curable resin 60 having a thickness of about 8 mm which has been formed on the top surface of the umbrella portion 56 of the cover 55. The distance between the surfaces of @ 吴 is about the 4th ejection position of 2 mm; and the liquid ultraviolet curable resin 60 can be ejected from the ejection outlet of the ejection nozzle 4 1 to the cover 5 5 The thickness of the upper surface of the umbrella portion 56 is approximately 8 mm on the surface of the film of the liquid ultraviolet curable resin 60; therefore, the liquid ultraviolet curable resin 60 is ejected from the ejection nozzle 41 to the The thickness formed on the top surface of the umbrella portion 56 of the cover 55 is approximately When -42 · (39) (39) 200414140 of the film of the liquid ultraviolet curable resin 60 having a thickness of 8 mm is effectively prevented, air is caught in the liquid ultraviolet curable resin 60, and Bubbles are mixed in the generated light transmitting layer 4. After starting to discharge the liquid ultraviolet curable resin 60 from the nozzle 41 to the top surface of the umbrella portion 5 6 of the cover 5 5, if the stage 2 1 rotates four times, the nozzle 4 is discharged. The discharge opening of 1 reaches a portion facing the liquid ultraviolet curable resin 60 from the discharge nozzle 41, which is first discharged onto the top surface of the umbrella portion 5 6 of the cover 5 5. Therefore, a film of a liquid ultraviolet curable resin 60 having a thickness of about 8 mm has been formed on the top surface of the umbrella portion 56 of the cover 5 5 facing the discharge opening of the discharge nozzle 41; The liquid ultraviolet curable resin 60 that has been spit on the top surface of the umbrella portion 5 6 of the cover 5 5 is flattened and unfolded. Therefore, the liquid ultraviolet curable liquid is on the top surface of the umbrella portion 5 6 of the cover 5 5. After the resin ejection starts, the stage 21 will rotate four times, and the ejection opening of the ejection nozzle 41 will become a thickness of approximately 8 mm facing the top surface of the umbrella portion 5 6 formed on the cover 5 5. The surface of the film of the liquid ultraviolet curable resin 60. On the other hand, as described above, after the liquid ultraviolet curable resin 60 starts to spit on the top surface of the umbrella portion 5 6 of the cover 55, the liquid ultraviolet curable resin 60 is just discharged from the previous The liquid ultraviolet curable resin 60 discharged from the nozzle 41 is changed into a liquid ultraviolet curable resin 60 discharged from the discharge nozzle 41 on the top surface of the umbrella portion 5 6 formed on the cover 5 5. On the surface of the film, the liquid ultraviolet curable resin 60 will be rotated from the stage 21 to four turns. The liquid UV curable resin 60 will be turned from the ejection nozzle 4] -43- (40) (40) 200414140 On the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 8 mm on the top surface of the umbrella portion 5 6 of the cover 5 5, that is, the liquid state that was previously discharged from the discharge nozzle 41 The liquid ultraviolet curable resin 60 formed by the ultraviolet curable resin 60 is formed on the surface of the film of the liquid ultraviolet curable resin 60; therefore, the liquid is formed in a liquid state with a thickness of approximately 8 mm on the top surface of the umbrella portion 5 6 of the cover 55. The surface of the film of the ultraviolet curable resin 60, which was ejected by the ejection nozzle 41 just before. The surface of the film of liquid ultraviolet curing resin 60 is a liquid ultraviolet curable resin 60 is formed, the surface becomes to be discharged. Here, as described above, when the liquid ultraviolet curable resin 60 is in a liquid state, it is ejected from the ejection nozzle 41 to 0.1.  A discharge speed of 15 ml / sec. Is a liquid ultraviolet curable resin 6 on a top surface of an umbrella portion 5 6 formed on a cover 5 5 which is rotating at a speed of 20 0 ······ m. The thickness of the film of the liquid ultraviolet curable resin 60 formed on the surface of the film and the liquid ultraviolet curable resin 60 formed on the top surface of the umbrella portion 5 6 of the cover 5 5 Compared with the previous case, the thickness is smaller, about 2 mm, so starting from the stage 2 1 will be rotated four times, the liquid ultraviolet curable resin 60 will become spit out from the discharge nozzle 4 1 The liquid UV-curable resin 60 having a thickness of about 10 mm and formed on the top surface of the umbrella portion 5 6 of the cover 55 is formed on the surface of the fl. Therefore, when the discharge nozzle 41 is held at the fourth discharge position at a distance of 10 mm from the top surface of the umbrella portion 56 of the cover 55, the liquid ultraviolet curable resin 60 is discharged from the discharge nozzle 41. At this time, the discharge port of the discharge nozzle 41 may come into contact with the liquid ultraviolet hard -44- (41) (41) 200414140 chemical resin 6 0 film formed directly below, and be formed on the recording layer. The light on the surface 3 passes through the surface of the layer 4 to cause meridian unevenness. Therefore, in this embodiment, the control unit 30 reads the fifth ejection position data stored in the RAM 32, generates a fifth ejection nozzle positioning signal based on the fifth ejection position data, and then reads the fifth ejection nozzle positioning signal according to the fifth ejection position data. At the timing of positioning the ejection nozzle 41, after the liquid ultraviolet curable resin 60 is started to be ejected on the top surface of the umbrella portion 5 6 of the cover 5 5, before the stage 21 is rotated four times, the first The 5 ejection nozzle positioning signal is output to the ejection nozzle motor 42 to move the ejection nozzle 41 to the fifth ejection position, for example, to a position 2 mm away from the top surface of the umbrella portion 56 of the cover 55 only than the fourth ejection position. That is, it moves to the position where the distance from the top surface of the umbrella part 56 of the cover 55 is 12 mm. As a result, the surface of the film of the liquid ultraviolet-curable resin 60 having a thickness of about 10 mm is ejected from the nozzle 4 1 and the top surface of the umbrella portion 56 of the cover 55 from the stage 21 to be rotated four times. The ejection distance between them is maintained at about 2 mm, and the liquid ultraviolet curable resin 60 is ejected from the ejection nozzle 41 on the top surface of the umbrella portion 56 which has been formed on the cover 55. The thickness is approximately 1 0 mm of liquid ultraviolet curable resin 60 on the surface of the film. As described above, in this embodiment, since it is configured that the liquid ultraviolet curable resin 60 becomes a discharge port from the discharge nozzle 41, it is discharged on the top surface of the umbrella portion 5 6 that has been formed on the cover 55. On the surface of the liquid ultraviolet curable resin 60 film having a thickness of about 0 mm, that is, when the stage 21 is to be rotated four times, the ejection nozzle 41 is held at -45- ( 42) (42) 200414140 The thickness of the discharge surface of the discharge nozzle 41 and the liquid ultraviolet curable resin 60 to be discharged is the thickness of the upper surface of the umbrella portion 5 6 of the cover 5 5 The distance between the surfaces of the film of the liquid ultraviolet curable resin 60 of about 10 mm is at the fifth discharge position of about 2 mm; and the liquid ultraviolet curable resin 60 can be discharged from the nozzle 4 1 The ejection outlet is ejected on the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 10 mm which has been formed on the top surface of the umbrella portion 5 6 of the cover 5 5; Spit out □ without touching the thickness formed on the top surface of the umbrella portion 56 of the cover 55 A film of a liquid ultraviolet-curable resin 60 of about 10 mm can be reliably prevented from contacting the liquid formed on the top surface of the umbrella portion 5 6 of the cover 5 5 due to the discharge of the discharge nozzle 41 1. A film of ultraviolet curable resin 60 may cause irregularities in the shape of meridians in the light transmitting layer 4 formed on the recording layer 3. Furthermore, in this embodiment, since it is comprised from the liquid ultraviolet curable resin 60 to the discharge opening from the discharge nozzle 41, it is discharged to the top surface of the umbrella part 5 6 which has been formed in the cover 55. On the surface of the liquid ultraviolet curable resin 60 film having a thickness of about 10 mm, that is, when the stage 21 is to be rotated four times, the discharge nozzle 41 is maintained at: the discharge nozzle 4 1 And the liquid-curing ultraviolet curable resin 60 having a thickness of about 10 mm, and the discharge surface of the liquid-curable ultraviolet curable resin 60 that is to be discharged is already formed on the top surface of the umbrella portion 56 of the cover 55. The distance between the surface of the film is about 2mm at the 5th discharge position; and the liquid ultraviolet curable resin 60 can be discharged from the -46- (43) (43) 200414140 nozzle 41 outlet On the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 10 mm which has been formed on the top surface of the umbrella portion 56 of the cover 5 5; Resin 6 0, is ejected from the ejection nozzle 4 1 on the already formed on the cover 5 5 When the thickness of the liquid UV-curable resin 60 on the top surface of the portion 56 is about 10 mm, it is possible to effectively prevent air from being caught in the liquid UV-curable resin 60. However, bubbles are mixed in the generated light transmitting layer 4. In this embodiment, after the liquid ultraviolet curable resin is started to be discharged onto the top surface of the umbrella portion 5 6 of the cover 5 5, the stage 2 1 is rotated approximately 4. 4 turns; that is, from the discharge nozzle 41, starting to spit the liquid ultraviolet curable resin 60 on the top surface of the umbrella portion 56 of the cover 55, about 13. After 3 seconds, the discharge of the liquid ultraviolet curable resin 60 from the discharge nozzle 4 was completed. Once the discharge of the liquid ultraviolet curable resin 60 is completed, the control unit 30 outputs a retreat signal to the ejection nozzle motor 42 so that the ejection nozzle 41 leaves the stage 21 and retreats to the retreat position, and outputs the second drive signal To the stage motor 3 4, the stage 21 is rotated at a high speed, for example, 2000r. p. m speed rotation. As a result, the liquid ultraviolet-curable resin 60 discharged from the top surface of the umbrella portion 56 of the cover 5 5 is directed toward the periphery of the data recording unit 50 by the centrifugal force generated by the rotation of the stage 21. It is unfolded onto the recording layer 3 of the data recording unit 50. As shown in FIG. 12, the thickness of the ultraviolet curable resin 60 having a predetermined thickness, for example, a film thickness of about 100 mm is 47-47 (44) ( 44) 200414140 film is formed on the recording layer 3 of the data recording unit 50. Once a thin film of ultraviolet curable resin 60 is formed on the recording layer 3 of the data recording unit 50, the control unit 30 outputs a third driving signal to the stage motor 34 and outputs the driving signal to ultraviolet Lamp 44 〇 As a result, the data recording unit 50, which is fixed to the first projection 22 and the second projection 23, and the stage 21, and the data recording unit 50, which are fixed by the stage motor 34 The upper cover 55 integrally rotates at a moderate speed, and turns on the ultraviolet lamp 44 as shown in FIG. 3 and the ultraviolet rays 4 and 5 are irradiated to the ultraviolet rays on the recording layer 3 formed on the data recording unit 50. On a thin film of resin 〇. When the ultraviolet ray is irradiated, once the thin film of the ultraviolet curable resin 60 is cured to a certain extent, the control unit 30 outputs a drive stop signal to the ultraviolet lamp 44 to turn off the ultraviolet lamp 44; and the control unit 30 stops driving The signal is output to the stage motor 34 to stop the operation of the stage motor 34. The control unit 30 also outputs the operation stop signal to the second suction pump 3 6 and the second suction pump 3 6 The operation stops. Next, the control unit 30 outputs the second driving signal to the second arm moving means 40, and the second arm 39 holds the support shaft 5 7 of the cover 5 5 and removes the cover 5 5 from the data recording unit 50. Take it off. Once the cover 55 is removed from the data recording unit 50, the control unit 30 outputs the driving signal to the ultraviolet lamp 44 again, causes the ultraviolet lamp 44 to turn on, and irradiates ultraviolet rays 45 to the recording layer formed on the data recording unit 50. 3 on a thin film of liquid ultraviolet curable resin 60. -48 · (45) (45) 200414140 After a predetermined time has elapsed, once the thin film of the liquid ultraviolet curable resin 60 formed on the recording layer 3 of the data recording unit 50 is completely cured to form the light transmitting layer 4 When the optical disc 1 is generated, the control unit 30 outputs the driving stop signal to the ultraviolet lamp 44 and turns off the ultraviolet lamp 44 and outputs the driving stop signal to the first suction pump 35 to make the first suction pump 3 5 stops. Next, the control unit 30 outputs the second driving signal to the first arm moving manual 38, and the suction pad (not shown) of the first arm 37 attracts the clamping area 7 of the optical disc 1 and uses the first arm 3 7 Remove the optical disc 1 from the spin coating device 10. In this way, the light-transmitting layer 4 is formed by spin coating, and the optical disc 1 is produced. According to this embodiment, when the liquid ultraviolet curable resin 60 is started to be discharged from the discharge nozzle 41 on the top surface of the umbrella portion 5 6 of the cover 55, the discharge nozzle 41 is held by the system configuration. At the first ejection position, the distance between the ejection outlet of the ejection nozzle 41 and the ejection surface of the ultraviolet curable resin which should be ejected in liquid form, that is, the top surface of the umbrella portion 56 of the cover 5 5 is maintained. At a position of 4 mm, and then eject the liquid ultraviolet curable resin 60 from the ejection nozzle 4 1 on the top surface of the umbrella portion 5 6 of the cover 5 5 'so when the liquid is ejected from the ejection nozzle 4 1 When the UV-curable resin 60 is spit on the top surface of the umbrella portion 5 6 of the cover 5 5, it is possible to effectively prevent: air is caught in the liquid UV-curable resin 60 and the generated light is transmitted through In layer 4, bubbles are mixed. In addition, according to this embodiment, since it is configured from the discharge nozzle • 49- (46) (46) 200414140 4 1 'to the top surface of the umbrella portion 5 6 of the cover 5 5 is a liquid ultraviolet curable resin 60 Discharging of the liquid UV-curable resin 60 on the top surface of the umbrella portion 56 of the cover 55 is started, and the nozzle 4 1 is rotated until the stage 2 1 is rotated. The system is maintained at a distance between the discharge port of the discharge nozzle 41 and the discharge surface of the liquid ultraviolet curable resin 60 which is to be discharged, that is, the surface of the film of the liquid ultraviolet curable resin 60, which is 1. 5 mm at the first discharge position; and the liquid ultraviolet curable resin 60 can be discharged from the discharge nozzle 41 to the liquid ultraviolet curing which has been formed on the top surface of the umbrella portion 5 6 of the cover 5 5. The surface of the film of the flexible resin 60; therefore, the discharge port of the discharge nozzle 4 丨 does not contact the liquid ultraviolet curable resin 60 film formed on the top surface of the umbrella portion 56 of the cover 55, so It can be surely prevented that the discharge opening of the discharge nozzle 41 contacts the film of the liquid ultraviolet curable resin 60 formed on the top surface of the umbrella portion 56 of the cover 55, and is formed on the recording layer 3. The light transmitting layer 4 may have irregular meridian-like irregularities. In addition, the liquid ultraviolet curable resin 60 is discharged from the discharge nozzle 41 to the surface of the film of the liquid ultraviolet curable resin 60. In the above case, it is possible to effectively prevent the air from being entangled in the liquid ultraviolet curable resin 60, and the generated light transmitting layer 4 is mixed with air bubbles. Furthermore, according to this embodiment, since it is configured that the liquid ultraviolet curable resin 60 becomes a discharge port from the discharge nozzle 41, it is discharged on the top surface of the umbrella portion 5 6 that has been formed on the cover 55. On the surface of the liquid ultraviolet curable resin 60 with a thickness of about 4 mm, that is, from the time when the stage 21 is to be rotated once, the ejection nozzle 4 1 is secured -50- (47) (47) 200414140 The thickness of the discharge surface of the discharge nozzle 41 and the discharge surface of the ultraviolet curable resin 60 that should be discharged, that is, the thickness of the top surface of the umbrella portion 5 6 of the cover 55 is approximately The distance between the surfaces of the liquid ultraviolet curable resin 60 of 4 mm is about 2 mm at the second ejection position; and the liquid ultraviolet curable resin 60 can be ejected from the ejection nozzle 41. The outlet is discharged on the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 4 mm which has been formed on the top surface of the umbrella portion 56 of the cover 55; therefore, the discharge opening of the nozzle 41 does not The thickness of the contact formed on the top surface of the umbrella portion 5 6 of the cover 5 5 is approximately A 4 mm film of liquid ultraviolet curable resin 60 can be reliably prevented from contacting the liquid ultraviolet curable resin formed on the top surface of the umbrella portion 56 of the cover 55 due to the discharge opening of the discharge nozzle 41. In the case of a film having a thickness of 60%, the light transmission layer 4 formed on the recording layer 3 may cause irregularities in the form of meridians. Then, the liquid ultraviolet curable resin 60 having a thickness of about 4 mm is discharged from the discharge nozzle 41 to the top surface of the umbrella portion 5 6 which has been formed on the cover 5 5. When it is on the surface of the film of 0, air can be effectively prevented from being entangled in the liquid ultraviolet curable resin 60, and air bubbles are mixed in the generated light transmitting layer 4. According to this embodiment, since the liquid ultraviolet curable resin 60 is configured to be discharged from the discharge nozzle 41 according to the present embodiment, the thickness is discharged on the top surface of the umbrella portion 56 that has been formed on the cover 55. Approximately 6 mm of liquid ultraviolet curable resin 60 on the surface of the film, that is, when the stage 2 1 is to be rotated twice, the ejection nozzle 4 1 is held -51-(48) (48) 200414140 In: the discharge port of the discharge nozzle 41 and the discharge surface of the liquid ultraviolet curable resin 60 which should be discharged, that is, the liquid having a thickness of about 6 mm which has been formed on the top surface of the umbrella portion 56 of the cover 55 The distance between the surfaces of the film of the UV-curable resin 60 is about the third discharge position of 2 nirn; and the liquid UV-curable resin 60 can be discharged from the discharge port of the discharge nozzle 41 The liquid ultraviolet curable resin 60 having a thickness of about 6 mm, which has been formed on the top surface of the umbrella portion 56 of the cover 55, is on the surface of the film of the liquid ultraviolet curable resin 60; The thickness of the top surface of the umbrella portion 5 6 of the cover 5 5 is about 6 mm The film of the liquid ultraviolet curable resin 60 can be reliably prevented from contacting the liquid ultraviolet curable resin formed on the top surface of the umbrella portion 56 of the cover 55 due to the discharge of the discharge nozzle 41. Film, and the light-transmitting layer 4 formed on the recording layer 3 may cause meridian-like unevenness. And the liquid ultraviolet curable resin 60 having a thickness of about 6 mm is ejected from the ejection nozzle 41 to the upper surface of the umbrella portion 56 which has been formed on the cover 5 5 from the liquid ultraviolet curable resin 60. When it is on the surface of the film of 60 ', it is possible to effectively prevent the air from being entangled in the liquid ultraviolet curable resin 60 and the generated light transmitting layer 4 may be mixed with air bubbles. Furthermore, according to this embodiment, since it is configured that the liquid ultraviolet curable resin 60 becomes a discharge port from the discharge nozzle 41, it is discharged on the top surface of the umbrella portion 5 6 that has been formed on the cover 55. On the surface of the liquid ultraviolet-curable resin film having a thickness of about 8 mm, that is, when the stage 21 is to be rotated three times, the nozzle 4 1 is discharged. -52- (49) (49 200414140 Holds: The thickness of the ejection surface of the ejection nozzle 41 and the ultraviolet curable resin 60 that should be ejected from the liquid, that is, the upper surface of the umbrella portion 56 that has been formed on the cover 55, is about 8 mm. The distance between the surfaces of the liquid ultraviolet curable resin 60 film is about 2 mm at the fourth discharge position; and the liquid ultraviolet curable resin 60 can be discharged from the discharge port of the discharge nozzle 41, The liquid ultraviolet curable resin 60 having a thickness of about 8 mm has been formed on the top surface of the umbrella portion 5 6 of the cover 5 5. The thickness of the contact formed on the top surface of the umbrella portion 5 6 of the cover 5 5 is approximately 8 A film of liquid ultraviolet curable resin 60 mm can reliably prevent: due to the discharge opening of the discharge nozzle 41 contacting the liquid ultraviolet curability formed on the top surface of the umbrella portion 5 6 of the cover 5 5 The film of the resin 60 may cause irregularities in the meridian shape in the light transmitting layer 4 formed on the recording layer 3. Then, the liquid ultraviolet curable resin 60 having a thickness of about 8 mm is discharged from the discharge nozzle 41 to the top surface of the umbrella portion 56 which has been formed on the cover 5 5. When it is on the surface of the film, air can be effectively prevented from being entangled in the liquid ultraviolet curable resin 60, and air bubbles are mixed in the generated light transmitting layer 4. In addition, according to this embodiment, since it is configured that the liquid ultraviolet curable resin 60 becomes a discharge outlet from the discharge nozzle 41, it is discharged on the top surface of the umbrella portion 5 6 that has been formed on the cover 55. The thickness of the liquid UV-curable resin 6 on the surface of the film is about 〇Onim. On the surface of the film, that is, from the stage 2], the nozzle 4 1 will be held at -53- ( 50) (50) 200414140 The thickness of the ejection surface of the ejection nozzle 41 and the liquid ultraviolet curable resin 60 to be ejected, that is, the thickness of the upper surface of the umbrella portion 5 6 of the cover 55 is approximately The distance between the surfaces of the film of the liquid ultraviolet curable resin 60 of 10 mm is at the 5th discharge position of about 2 mm, and the liquid ultraviolet curable resin 60 can be discharged from the nozzle. The ejection outlet of 41 is ejected on the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 10 mm which has been formed on the top surface of the umbrella portion 5 6 of the cover 55; therefore, the ejection nozzle is ejected. The 41 outlet does not touch the top surface of the umbrella portion 56 formed on the cover 55 A film of a liquid ultraviolet curable resin 60 having a thickness of about 10 mm can be reliably prevented from coming into contact with the liquid formed on the top surface of the umbrella portion 56 of the cover 55 due to the discharge from the discharge nozzle 41. In the film of the ultraviolet curable resin 60, the light transmitting layer 4 formed on the recording layer 3 may cause meridian-like unevenness. Then, the liquid ultraviolet curable resin 60 having a thickness of about 1 is ejected from the discharge nozzle 41 to the upper surface of the umbrella portion 5 6 which has been formed on the cover 5 5 from the discharge nozzle 41. When it is on the surface of the film, it is possible to effectively prevent air from being entangled in the liquid ultraviolet curable resin 60, and the generated light transmitting layer 4 is mixed with air bubbles. Hereinafter, in order to more clearly explain the effects of the present invention, examples are disclosed. (Example) A disc for reproduction was produced as described below. • 54- (51) 200414140 Micro pits for storing data are formed, and the outer diameter is formed to a thickness of 1. A disc substrate having a diameter of 2 mm and a center hole having an inner diameter of 15 mm was formed on the disc, and a layer made of aluminum was formed by sputtering. Next, a cover having a holding shaft having an umbrella portion and a central diameter of 2 mm on the top surface of the umbrella portion is used. The umbrella portion has a circular shape with a diameter of 26 mm on the top surface and 36 mm 5 mm on the bottom surface. The shape of the projection is trapezoidal; plug the center hole of the disc, and then form a light transmitting layer on the surface of the reflective layer. After cutting stainless steel, surface honing is performed. First, a disc-shaped substrate on which a reflective layer is formed is placed on a stage, and then, a lid is placed on the dish in order to plug the center hole. Furthermore, the pressure around the center hole was reduced to fix the cover and the disc on the rotating stage. Next, while rotating the stage to 20r. p. The speed of m will be a liquid purple resin with a viscosity of 48 00 percent poise at 25 ° C, with a diameter of 2. The 4mm outlet is ejected on the top surface of the umbrella part of the cover. The degree of liquid ultraviolet curable resin discharged from the discharge nozzle was 0. 15 ml / s, with an output of 2 ml. The discharge nozzle is controlled in its vertical position so that the discharge distance between the discharge outlet and the liquid ultraviolet curable resin which should be discharged can always be equal to the distance D. A cover with a straight top surface formed by reflection and a height-shaped substrate is used to rotate the carrier wafer-shaped substrate to attract rotation. An outer-line hardening nozzle ejects the ejected surface of the ejection nozzle. Ultraviolet-55- (52 ) (52) 200414140 Wire curable resin, spit on the surface to be discharged. That is, when the liquid ultraviolet curable resin starts to be discharged, the discharge nozzle is located at the discharge port of the discharge nozzle and the discharge surface of the liquid ultraviolet curable resin which should be discharged is the top of the umbrella portion of the cover The ejection distance between the surfaces is equal to the distance D. After the liquid ultraviolet curable resin is started to be ejected from the ejection nozzle to the top surface of the umbrella portion of the cover, in order to make the ejection outlet of the ejection nozzle, The discharge distance between the surface to be discharged on the top surface of the umbrella portion of the cover and the liquid ultraviolet curable resin to be discharged, that is, the surface of the liquid ultraviolet curable resin film, can be equal to the distance D, While controlling the vertical position of the discharge nozzle, the liquid ultraviolet curable resin is discharged from the discharge nozzle toward the top surface of the umbrella portion of the cover. The position of the ejection nozzle is measured in advance under the same conditions, and the liquid ultraviolet curable resin having a viscosity of 4 800 percent poise at 25 ° C is ejected on the top surface of the umbrella part of the cover. The amount of rotation of the rotary stage after the liquid ultraviolet curable resin starts to be ejected, that is, the elapsed time after the liquid ultraviolet curable resin starts to be ejected is measured; and it is formed on the top surface of the umbrella portion of the cover The relationship between the thickness of the liquid UV-curable resin film is controlled by controlling the pulse motor that moves the discharge nozzle in the vertical direction based on the obtained data. After continuing for about 13 seconds, the liquid UV-curable resin is discharged from the discharge nozzle toward the top surface of the umbrella portion of the cover, and then the rotating stage is rotated at a speed of 2000 r · p · m for 1 〇 Rotate in seconds to spread the liquid UV-curable resin that is ejected on the top surface of the umbrella part of the cover onto the disc-shaped base -56- (53) 200414140 plate to form a UV-curable resin. Thin film. After the cover is removed from the disc-shaped substrate, ultraviolet rays are irradiated onto the film of the ultraviolet-curable resin to harden the film of the ultraviolet-curable resin to form a light-transmitting layer, thereby producing an optical disc. The light-transmitting layer is formed by changing the distance between the discharge port of the discharge nozzle and the surface to be discharged of the liquid ultraviolet curable resin from the discharge nozzle toward the top surface of the umbrella portion of the cover. 10 discs were produced. Use Dr. A general-purpose optical disc defect inspection machine manufactured by SCENK Co., Ltd. is used to check whether the obtained light transmitting layer contains air bubbles. The inspection results are shown in Table 1. Table 1 D (m m) 0. 3 0. 5 1 3 5 6 7 8 With or without bubbles X 〇 〇 〇 〇 Δ ▲ X With or without veins B A A A A A A A A

在表1中,〇表示在10枚的光碟片之中,於光透過 層中,確認了形成有直徑70 // m以上的氣泡之光碟片, 連1枚也沒有;△表示在10枚的光碟片之中,於1至3 枚的光碟片的光透過層中,被確認形成有直徑以 上的氣泡。又,▲表示在10枚的光碟片之中,於4至8 -57- (54) (54)200414140 枚的光碟片的光透過層中,被確認形成有直徑70 // m以 上的氣泡。而X則表示在全部的1 0枚光碟片中,被確認 形成有直徑7 0 // m以上的氣泡。 進而’以目視來確認有無光透過層表面之筋脈狀的不 均。結果顯不於表1中。 在表1中,A係表示在10枚的光碟片之中,確認了 在光透過層表面上形成有筋脈狀的不均之光碟片,連1枚 也沒有;B係表示在1 〇枚的光碟片之中,確認了至少在1 枚的光碟片的光透過層表面,形成有筋脈狀的不均。 根據表1可知,若吐出噴嘴的吐出口和應該吐出液狀 的紫外線硬化性樹脂之被吐出面之間的吐出距離D,超過 5 mm,則將紫外線硬化性樹脂,從吐出噴嘴,朝向蓋的傘 部的頂面吐出時,空氣被捲入液狀的紫外線硬化性樹脂 中,容易在光透過層中發生氣泡。 另一方面,也得知:當吐出噴嘴的吐出口和應該吐出 液狀的紫外線硬化性樹脂之被吐出面之間的吐出距離D, 不到0 · 5 mm的情況,吐出噴嘴的吐出口,與被吐出在蓋 的傘部的頂面上的紫外線硬化性樹脂接觸,而在光透過層 的表面,形成筋脈狀的不均,同時空氣也被捲入,容易在 光透過層中發生氣泡。 相對於此’在吐出噴嘴的吐出口和應該吐出液狀的紫 外線硬化性樹脂之被吐出面之間的吐出距離D,爲0 · 5 mm 至5 mm的情況,在光透過層中,沒有氣泡形成;在光透 過層的表面,也沒有經脈狀的不均。 -58- (55) (55)200414140 本發明並不被限定於以上的實施形態和實施例,在申 請專利範圍中所記載的發明的範圍內,可以做各種變更, 這些變更當然也包含在本發明的範圍內。 例如,在前述實施形態中,係被構成: 在開始將液狀的紫外線硬化性樹脂60,從吐出噴嘴 4 1,吐在蓋5 5的傘部5 6的頂面上的時候,將吐出噴嘴 41保持在:吐出噴嘴41的吐出口和應該吐出液狀的紫外 線硬化性樹脂6 0之被吐出面亦即蓋5 5的傘部5 6的頂面 之間的距離爲4 m m之第1吐出位置處;而從吐出噴嘴4 1 的吐出口,朝向蓋5 5的傘部5 6的頂面,吐出液狀的紫外 線硬化性樹脂60 ;而從液狀的紫外線硬化性樹脂60的吐 出開始之後,在載物台2 1將要旋轉一圈時,將吐出噴嘴 4 1移動至與蓋5 5的傘部5 6的頂面之間的距離爲6mm的 第2吐出位置處,並將吐出噴嘴41保持在第2吐出位 置,而從吐出噴嘴4 1的吐出口’將液狀的紫外線硬化性 樹脂6 0,吐在已經被形成於蓋5 5的傘部5 6的頂面上之 厚度大約爲4 m m的液狀的紫外線硬化性樹脂6 〇的膜的表 面上;而從液狀的紫外線硬化性樹脂60的吐出開始之 後’在載物台21將要旋轉二圈時,將吐出噴嘴4 1移動至 與蓋5 5的傘部5 6的頂面之間的距離爲8mm的第3吐出 位置處,並將吐出噴嘴4 1保持在第3吐出位置,而從吐 出噴嘴4 1的吐出口,將液狀的紫外線硬化性樹脂6 〇,吐 在已經被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲 6mm的液狀的紫外線硬化性樹脂6〇的膜的表面上;而從 -59- (56) (56)200414140 液狀的紫外線硬化性樹脂6 0的吐出開始之後,在載物台 2 1將要旋轉三圈時,將吐出噴嘴4 1移動至與蓋5 5的傘 部5 6的頂面之間的距離爲〗〇mm的第4吐出位置處,並 將吐出噴嘴4 1保持在第4吐出位置,而從吐出噴嘴4 1的 吐出口,將液狀的紫外線硬化性樹脂6〇,吐在已經被形 成於盍5 5的傘部5 6的頂面上之厚度大約爲8 m m的液狀 的紫外線硬化性樹脂60的膜的表面上;而從液狀的紫外 線硬化性樹脂6 0的吐出開始之後,在載物台2 1將要旋轉 四圈時,將吐出噴嘴41移動至與蓋5 5的傘部5 6的頂面 之間的距離爲1 2 m m的第5吐出位置處,並將吐出噴嘴 4 1保持在第5吐出位置,而從吐出噴嘴4 1的吐出口,將 液狀的紫外線硬化性樹脂60,吐在已經被形成於蓋5 5的 傘部5 6的頂面上之厚度大約爲〗0mm的液狀的紫外線硬 化性樹脂6 0的膜的表面上;以此方式,吐出噴嘴4 1的垂 直方向的位置被步進狀的控制。 但是’與前述實施例同樣地,也可以預先根據將液狀 的紫外線硬化性樹脂6 0朝向蓋5 5的傘部5 6的頂面吐出 時的載物台21的旋轉速度、液狀的紫外線硬化性樹脂6 〇 的黏度、及液狀的紫外線硬化性樹脂60的吐出速度,算 出開始液狀的紫外線硬化性樹脂6 0的吐出之後的載物台 21的旋轉量,亦即開始液狀的紫外線硬化性樹脂6 〇的吐 出之後的經過時間、以及藉由被吐在蓋5 5的傘部5 6的頂 面上之液狀的紫外線硬化性樹脂6 0而在蓋5 5的傘部5 6 的頂面上所形成的液狀的紫外線硬化性樹脂6 0的膜的厚 -60- (57) (57)200414140 度之間的關係,並記憶在R〇M3 1中,來控制吐出噴嘴 達42 ;在液狀的紫外線硬化性樹脂6〇的吐出開始時, 吐出噴嘴4 1的吐出口,僅從應該吐出液狀的紫外線硬 性樹脂60的被吐出面亦即蓋55的傘部56的頂面離開 離D(D爲0.5mm至5mm的範圍內之規定値);而在液 的紫外線硬化性樹脂6 0的吐出開始之後,使吐出噴嘴 的吐出□,僅從被形成在蓋5 5的傘部5 6的頂面上之應 吐出液狀的紫外線硬化性樹脂60的被吐出面亦即液狀 紫外線硬化性樹脂60的膜的表面,離開距離d,以此 式一邊連續地控制吐出噴嘴4 1的垂直方向的位置,一 從吐出噴嘴41的吐出口,朝向蓋5 5的傘部5 6的頂面 吐出液狀的紫外線硬化性樹脂6 0。 進而,在前述實施形態中,係被構成: 在開始將液狀的紫外線硬化性樹脂60,從吐出噴 4 1,吐在蓋5 5的傘部5 6的頂面上的時候,將吐出噴 4 1保持在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫 線硬化性樹脂6 0之被吐出面亦即蓋5 5的傘部5 6的頂 之間的距離爲4 m m之第1吐出位置處;而從吐出噴嘴 的吐出口,朝向蓋5 5的傘部5 6的頂面,吐出液狀的紫 線硬化性樹脂60 ;而從液狀的紫外線硬化性樹脂60的 出開始之後,在載物台2 1將要旋轉一圈時,將吐出噴 4 1移動至與蓋5 5的傘部5 6的頂面之間的距離爲6mm 第2吐出位置處,並將吐出噴嘴41保持在第2吐出 置,而從吐出噴嘴4 1的吐出口,將液狀的紫外線硬化 -61 - (58) (58)200414140 樹脂60,吐在已經被形成於蓋55的傘部56的頂面上之 厚度大約爲4 m m的液狀的紫外線硬化性樹脂6 0的膜的表 面上;而從液狀的紫外線硬化性樹脂60的吐出開始之 後,在載物台2 1將要旋轉二圈時,將吐出噴嘴4 1移動至 與蓋5 5的傘部5 6的頂面之間的距離爲8mm的第3吐出 位置處,並將吐出噴嘴41保持在第3吐出位置,而從吐 出噴嘴4 1的吐出口,將液狀的紫外線硬化性樹脂60,吐 在已經被形成於蓋5 5的傘部5 6的頂面上之厚度大約爲 6mm的液狀的紫外線硬化性樹脂60的膜的表面上;而從 液狀的紫外線硬化性樹脂6 0的吐出開始之後,在載物台 2 1將要旋轉三圈時,將吐出噴嘴4 1移動至與蓋5 5的傘 部5 6的頂面之間的距離爲1 〇mm的第4吐出位置處,並 將吐出噴嘴4 1保持在第4吐出位置,而從吐出噴嘴4 1的 吐出口,將液狀的紫外線硬化性樹脂6 0,吐在已經被形 成於蓋55的傘部56的頂面上之厚度大約爲8mm的液狀 的紫外線硬化性樹脂6 0的膜的表面上;而從液狀的紫外 線硬化性樹脂6 0的吐出開始之後,在載物台2 1將要旋轉 四圈時,將吐出噴嘴4 1移動至與蓋5 5的傘部5 6的頂面 之間的距離爲12mm的第5吐出位置處,並將吐出噴嘴 4 1保持在第5吐出位置,而從吐出噴嘴4 1的吐出口,將 液狀的紫外線硬化性樹脂6 0,吐在已經被形成於蓋5 5的 傘部5 6的頂面上之厚度大約爲1 〇mm的液狀的紫外線硬 化性樹脂60的膜的表面上。 但是,在以步進狀地控制吐出噴嘴4 1的垂直方向的 -62- (59) (59) 200414140 位置的情況,吐出噴嘴4 1的垂直方向的位置,只要將吐 出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬化性樹脂 6 0的被吐出面之間的吐出距離,控制在0 · 5 mm至5 mm, 理想爲控制在1 mm至3 mm之間便可以;並不一定需要: 在開始將液狀的紫外線硬化性樹脂60,從吐出噴嘴4 1, 吐在蓋5 5的傘部5 6的頂面上的時候,將吐出噴嘴4 1保 持在:吐出噴嘴4 1的吐出口和應該吐出液狀的紫外線硬 化性樹脂6 0之被吐出面亦即蓋5 5的傘部5 6的頂面之間 的距離爲4mm之第1吐出位置處;而從液狀的紫外線硬 化性樹脂60的吐出開始之後,在載物台2 1將要旋轉一圈 時,將吐出噴嘴41移動至與蓋5 5的傘部5 6的頂面之間 的距離爲6mm的第2吐出位置處,並將吐出噴嘴4 1保持 在第2吐出位置;而從液狀的紫外線硬化性樹脂6〇的吐 出開始之後,在載物台2 1將要旋轉二圈時,將吐出噴嘴 4 1移動至與蓋5 5的傘部5 6的頂面之間的距離爲8mm的 第3吐出位置處,並將吐出噴嘴4 1保持在第3吐出位 置;而從液狀的紫外線硬化性樹脂60的吐出開始之後, 在載物台2 1將要旋轉三圈時,將吐出噴嘴4 1移動至與蓋 5 5的傘部5 6的頂面之間的距離爲1 〇 mm的第4吐出位置 處,並將吐出噴嘴4 1保持在第4吐出位置;而從液狀的 紫外線硬化性樹脂6 0的吐出開始之後,在載物台2 1將要 旋轉四圈時,將吐出噴嘴41移動至與蓋5 5的傘部5 6的 頂面之間的距離爲1 2mm的第5吐出位置處,並將吐出噴 嘴4 1保持在第5吐出位置。 -63- (60) (60)200414140 又,在前述實施形態和前述實施例中,係使用具有平 面形狀爲圓形而側面的投影形狀爲梯形的傘部5 6之蓋 5 5,但是並不一定需要使用具有平面形狀爲圓形而側面的 投影形狀爲梯形的傘部5 6之蓋5 5 ;只要傘部5 6具有平 坦的頂面或凹狀的頂面,傘部5 6的側面也可以藉由曲面 來形成;又,也可以使用具有圓板狀的傘部5 6之蓋5 5。 進而,在前述實施形態中,係將具有5 0 0 0百分泊的 黏度之液狀的紫外線硬化性樹脂60,藉由旋轉塗佈,塗 佈在記錄層3上,來形成光透過層4;而在前述實施例 中,係將具有4 8 0 0百分泊的黏度之液狀的紫外線硬化性 樹脂6 0,藉由旋轉塗佈,塗佈在記錄層3上,來形成光 透過層4;但是也並不一定要使用具有5000百分泊或 4 8 00百分泊的黏度之液狀的紫外線硬化性樹脂,來形成 光透過層,只要具有2000至10000百分泊的黏度,也可 以使用各種黏度的液狀的紫外線硬化性樹脂。 又,在前述實施形態和前述實施例中,係將旋轉塗佈 裝置的載物台21,一邊以20r.p.m的速度旋轉,一邊朝向 蓋5 5的傘部5 6的頂面,吐出液狀的紫外線硬化性樹脂; 但是在將液狀的紫外線硬化性樹脂,朝向蓋5 5的傘部5 6 的頂面吐出的時候,並不一定要將旋轉塗佈裝置的載物台 2 1的旋轉速度,保持在2 0 r . p . m ;在將液狀的紫外線硬化 性樹脂’朝向蓋5 5的傘部5 6的頂面吐出的時候,只要將 旋轉塗佈裝置的載物台2 1的旋轉速度,保持在5至 1 OOr.p.m,理想爲1 0至50r.p.m的範圍內便可以。 -64 - (61) (61)200414140 進而,在前述實施形態和前述實施例中,在將液狀的 紫外線硬化性樹脂6 0吐在蓋5 5的傘部5 6的頂面上,而 液狀的紫外線硬化性樹脂60的吐出結束之後,係將旋轉 塗佈裝置的載物台21,以20 0 Or.pm的速度旋轉,將被吐 在蓋5 5的傘部5 6的頂面上之液狀的紫外線硬化性樹脂 6 0 ’展開至被形成於基板2上的記錄層3或反射層的表面 上’來形成紫外線硬化性樹脂6 0的薄膜;但是也並不一 定要將旋轉塗佈裝置的載物台,以2000r.pm的速度旋 轉’將被吐在蓋5 5的傘部5 6的頂面上之液狀的紫外線硬 化性樹脂6 0,展開至被形成於基板2上的記錄層3或反 射層的表面上’來形成紫外線硬化性樹脂60的薄膜;旋 轉塗佈裝置的載物台2〗的旋轉數,可以根據液狀的紫外 線硬化性樹脂6 0的黏度,加以選擇。 又’在前述實施形態和前述實施例中,係從吐出噴嘴 4 1的吐出口,朝向蓋5 5的傘部5 6的頂面,吐出液狀的 紫外線硬化性樹脂60,來形成光透過層4 ;但是,也並不 一定要將紫外線硬化性樹脂6 0,從吐出噴嘴4 1的吐出 口,朝向蓋5 5的傘部5 6的頂面吐出,來形成光透過層 4 ;也可以取代紫外線硬化性樹脂,而將電子線硬化性樹 脂’從吐出噴嘴41的吐出口,朝向蓋5 5的傘部5 6的頂 面吐出,來形成光透過層4。 【發明之效果] 若根據本發明,即使在使用黏度高的紫外線硬化性樹 -65- (62) (62)200414140 脂等的放射線硬化性樹脂,而藉由旋轉塗佈來形成光透過 層的情況,也可以提供一種光碟片之製造方法及裝置,能 夠形成所期望之沒有氣泡混入、表面性優異的光透過層。 【圖式簡單說明】 第1圖係表示藉由本發明的理想實施形態的光碟片之 製造方法所製造出來的光碟片之槪略立體圖。 第2圖係在第1圖的A所示的部分之槪略擴大剖面 圖。 第3圖係表示關於本發明的理想實施形態的光碟片之 製造裝置的重要部位之槪略立體圖。 第4圖係在第3圖中所示的光碟片之製造裝置的重要 部位的槪略縱剖面圖。 第5圖係旋轉塗佈裝置的控制系統、輸入系統及驅動 系統的方塊圖。 第6圖係表示資料記錄單元被固定在旋轉塗佈裝置的 載物台上的狀態之槪略剖面圖。 第7圖係蓋的槪略立體圖。 第8圖係第7圖中所示的蓋的槪略中央剖面圖。 第9圖係表示蓋被設置在已經被設置於載物台上的資 料記錄單元的規定位置上的狀態之槪略剖面圖。 第1 〇圖係表示液狀的紫外線硬化性樹脂,從位於第 1吐出位置的吐出噴嘴,朝向蓋的傘部的頂面,被吐出的 狀態的槪略剖面圖。 -66” (63) (63)200414140 第1 1圖係表示液狀的紫外線硬化性樹脂,從吐出噴 嘴,被吐出在已經被形成於蓋的傘部的頂面上之厚度大約 爲4mm的液狀的紫外線硬化樹脂膜的表面上之狀態的槪 略擴大剖面圖。 第1 2圖係表示具有規定厚度的膜厚之紫外線硬化性 樹脂的薄膜,被形成在資料記錄單元的記錄層上之狀態的 槪略剖面圖。 第1 3圖係表示紫外線被照射在被形成於資料記錄單 馨 元的記錄層上之紫外線硬化性樹脂的薄膜上之狀態的槪略 剖面圖。 .〔符號說明〕 1 :光碟片 2 :基板 3 :記錄層 4 :光透過層 Φ 5 :預置溝槽 6 :中心孔 7 :夾緊區域 1 0 :旋轉塗佈裝置 2 1 :載物台 · 2 2 :第1突出部 2 3 :第2突出部 24 :第1吸氣口 -67- (64) (64)200414140 2 5 :第2吸氣口In Table 1, 0 indicates that among the 10 optical discs, in the light transmitting layer, it was confirmed that no optical disc having a diameter of 70 // m or more was formed; not even 1; Among the optical discs, it was confirmed that bubbles having a diameter larger than or equal to the diameter were formed in the light transmitting layer of one to three optical discs. Also, ▲ indicates that among the 10 optical discs, it was confirmed that air bubbles having a diameter of 70 // m or more were formed in the light transmitting layer of 4 to 8 -57- (54) (54) 200414140 discs. X indicates that, among all 10 discs, it was confirmed that air bubbles having a diameter of 7 0 // m or more were formed. Furthermore, the presence or absence of vein-like irregularities on the surface of the light-transmitting layer was confirmed visually. The results are not shown in Table 1. In Table 1, A indicates that among the 10 optical discs, it was confirmed that uneven optical discs having ribs and veins were formed on the surface of the light transmitting layer, and not even 1; B indicates 10 Among the optical discs, it was confirmed that at least one optical disc had a vein-like unevenness on the surface of the light transmitting layer. According to Table 1, it can be seen that if the discharge distance D between the discharge port of the discharge nozzle and the discharge surface of the liquid ultraviolet curable resin to be discharged exceeds 5 mm, the ultraviolet curable resin is discharged from the discharge nozzle toward the cover. When the top surface of the umbrella portion is discharged, air is entangled in the liquid ultraviolet curable resin, and air bubbles are liable to be generated in the light transmitting layer. On the other hand, it is also known that when the discharge distance D between the discharge port of the discharge nozzle and the surface to be discharged of the liquid ultraviolet curable resin to be discharged is less than 0.5 mm, the discharge port of the nozzle is discharged. It comes into contact with the ultraviolet-curable resin discharged from the top surface of the umbrella part of the cover, and the vein-like unevenness is formed on the surface of the light-transmitting layer. At the same time, the air is also drawn in, and bubbles are likely to occur in the light-transmitting layer . In contrast, when the discharge distance D between the discharge port of the discharge nozzle and the discharge surface of the liquid UV-curable resin to be discharged is 0.5 mm to 5 mm, there are no air bubbles in the light transmitting layer. Formation; on the surface of the light transmitting layer, there is no meridian unevenness. -58- (55) (55) 200414140 The present invention is not limited to the above embodiments and examples, and various changes can be made within the scope of the invention described in the scope of patent application. Of course, these changes are also included in the present invention. Within the scope of the invention. For example, in the foregoing embodiment, the system is configured to discharge the liquid ultraviolet curable resin 60 from the discharge nozzle 41 to the top surface of the umbrella portion 56 of the cover 5 5 when the liquid ultraviolet curable resin 60 is started to be discharged. 41 is maintained at: the first discharge with a distance of 4 mm between the discharge port of the discharge nozzle 41 and the discharge surface of the liquid UV-curable resin 60 which is to be discharged, that is, the top surface of the umbrella portion 5 6 of the cover 5 5 Position; and the liquid ultraviolet curable resin 60 is discharged from the discharge opening of the discharge nozzle 41 toward the top surface of the umbrella portion 5 6 of the cover 55, and after the liquid ultraviolet curable resin 60 is started to be discharged When the stage 21 is to be rotated once, the ejection nozzle 41 is moved to the second ejection position at a distance of 6 mm from the top surface of the umbrella portion 56 of the cover 55, and the ejection nozzle 41 is While maintaining the second ejection position, the liquid ultraviolet curable resin 60 is ejected from the ejection outlet 'of the ejection nozzle 41 to the thickness of the top surface of the umbrella portion 5 6 which has been formed on the cover 5 5 to be approximately 4 mm of liquid UV-curable resin 60 on the surface of the film; After the ejection of the chemical resin 60 has started, when the stage 21 is to be rotated twice, the ejection nozzle 41 is moved to the third ejection position with a distance of 8 mm from the top surface of the umbrella portion 5 6 of the cover 5 5. While holding the ejection nozzle 41 at the third ejection position, and from the ejection outlet of the ejection nozzle 41, a liquid ultraviolet curable resin 6 is ejected to the umbrella portion 5 6 which has been formed on the cover 55. On the top surface of the liquid ultraviolet curable resin 60 having a thickness of about 6 mm on the surface of the film; and from -59- (56) (56) 200414140 after the discharge of the liquid ultraviolet curable resin 60 was started When the stage 21 is to be rotated three times, the ejection nozzle 41 is moved to the fourth ejection position at a distance of 〖0mm from the top surface of the umbrella part 56 of the cover 55, and ejected. The nozzle 41 is held at the fourth ejection position, and a liquid ultraviolet curable resin 60 is ejected from the ejection outlet of the ejection nozzle 41 on the top surface of the umbrella portion 56 which has been formed on the 盍 55. On the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 8 mm; and from the liquid ultraviolet curable resin 6 After the ejection of 0 is started, when the stage 21 is to be rotated four times, the ejection nozzle 41 is moved to the fifth ejection position at a distance of 12 mm from the top surface of the umbrella portion 5 6 of the cover 5 5. While keeping the ejection nozzle 41 at the fifth ejection position, and from the ejection outlet of the ejection nozzle 41, the liquid ultraviolet curable resin 60 is ejected on the top of the umbrella portion 5 6 that has been formed on the cover 5 5 On the surface of the film of the liquid ultraviolet curable resin 60 having a thickness of about 0 mm on the surface; in this manner, the vertical position of the discharge nozzle 41 is controlled in a stepwise manner. However, as in the foregoing embodiment, the rotation speed of the stage 21 and the liquid ultraviolet rays may be determined in advance based on the liquid ultraviolet curable resin 60 being ejected toward the top surface of the umbrella portion 56 of the cover 5 5. The viscosity of the curable resin 60 and the ejection speed of the liquid ultraviolet curable resin 60 are used to calculate the amount of rotation of the stage 21 after the liquid ultraviolet curable resin 60 is started to be ejected, that is, the liquid The elapsed time after the ultraviolet curable resin 60 is discharged, and the liquid ultraviolet curable resin 60 which is ejected on the top surface of the umbrella portion 5 6 of the cover 5 5 is placed on the umbrella portion 5 of the cover 5 5 The relationship between the thickness of the liquid UV-curable resin 60 formed on the top surface of 6 and the thickness of -60- (57) (57) 200414140 degrees is stored in ROM3 to control the ejection nozzle. When the discharge of the liquid ultraviolet curable resin 60 is started, the discharge port of the discharge nozzle 41 is discharged only from the discharge surface of the liquid ultraviolet hard resin 60, which is the umbrella portion 56 of the cover 55. The top surface is separated from D (D is within the range of 0.5mm to 5mm); and After the discharge of the liquid ultraviolet curable resin 60 is started, the discharge nozzle □ is discharged from the cover of the ultraviolet curable resin 60 which is formed on the top surface of the umbrella portion 5 6 of the cover 5 5. The ejection surface, that is, the surface of the film of the liquid ultraviolet curable resin 60, is separated from the distance d, and the vertical position of the ejection nozzle 41 is continuously controlled in this formula, and one exits from the ejection outlet of the ejection nozzle 41 toward the cover 5 5 The top surface of the umbrella portion 5 6 discharges a liquid ultraviolet curable resin 60. Furthermore, in the foregoing embodiment, the system is configured to: when the liquid ultraviolet curable resin 60 is started to be sprayed from the discharge 41, and when it is discharged onto the top surface of the umbrella portion 5 6 of the cover 55, the discharge is sprayed. 4 1 is maintained at: The distance between the discharge port of the discharge nozzle 41 and the discharge surface of the liquid purple curable resin 60 which is to be discharged, that is, the top of the umbrella portion 5 6 of the cover 5 5 is the first of 4 mm. 1 at the discharge position; and from the discharge port of the discharge nozzle toward the top surface of the umbrella portion 5 6 of the cover 5 5, the liquid purple curable resin 60 is discharged; and the liquid ultraviolet curable resin 60 is started from the discharge. Then, when the stage 21 is to be rotated once, the ejection nozzle 41 is moved to a distance of 6 mm from the top surface of the umbrella portion 5 6 of the cover 55, and the ejection nozzle 41 is ejected. While maintaining the second discharge position, the liquid ultraviolet-curing-61-(58) (58) 200414140 resin 60 is discharged from the discharge port of the discharge nozzle 41 to the top of the umbrella portion 56 which has been formed on the cover 55. On the surface of the film of liquid UV curable resin 60 having a thickness of about 4 mm on the surface; After the ejection of 60 is started, when the stage 21 is to be rotated twice, the ejection nozzle 41 is moved to the third ejection position at a distance of 8 mm from the top surface of the umbrella portion 56 of the cover 55. The ejection nozzle 41 is held at the third ejection position, and the liquid ultraviolet curable resin 60 is ejected from the ejection outlet of the ejection nozzle 41 on the top surface of the umbrella portion 56 which has been formed on the cover 55. The thickness of the liquid ultraviolet curable resin 60 having a thickness of about 6 mm is on the surface of the film. After the liquid ultraviolet curable resin 60 is started to be ejected, the stage 21 will be ejected when it is about to rotate three times. The nozzle 41 is moved to the fourth discharge position at a distance of 10 mm from the top surface of the umbrella portion 56 of the cover 55, and the discharge nozzle 41 is held at the fourth discharge position, and the nozzle 4 is discharged from the nozzle 4 The ejection opening of 1 ejects a liquid ultraviolet curable resin 60 having a thickness of approximately 8 mm to a film of the liquid ultraviolet curable resin 60 having a thickness of approximately 8 mm, which has been formed on the top surface of the umbrella portion 56 of the cover 55. On the surface; and after the discharge of the liquid ultraviolet curable resin 60 is started, the During four rotations, the discharge nozzle 41 is moved to the fifth discharge position at a distance of 12 mm from the top surface of the umbrella portion 56 of the cover 55, and the discharge nozzle 41 is maintained at the fifth discharge position. From the discharge opening of the discharge nozzle 41, the liquid ultraviolet curable resin 60 is discharged onto the top surface of the umbrella portion 5 6 which has been formed on the cover 5 5 in a liquid state having a thickness of about 10 mm. The surface of the film of the ultraviolet curable resin 60. However, in the case of -62- (59) (59) 200414140 where the vertical position of the discharge nozzle 41 is controlled in a stepwise manner, the vertical position of the discharge nozzle 41 can be achieved by simply discharging the discharge port of the nozzle 41 The ejection distance between the liquid UV-curable resin 60 to be ejected and the ejection surface should be controlled between 0.5 mm and 5 mm, and ideally between 1 mm and 3 mm; it is not necessary : When the liquid ultraviolet curable resin 60 is started to be ejected from the ejection nozzle 41 to the top surface of the umbrella portion 56 of the cover 55, the ejection nozzle 41 is maintained at: ejection of the ejection nozzle 41 The distance between the exit and the liquid ultraviolet curable resin 60 to be discharged is the first discharge position where the distance between the top surface of the umbrella portion 56 of the cover 5 5 is 4 mm, and the liquid ultraviolet curing After the ejection of the resin 60 is started, when the stage 21 is to be rotated once, the ejection nozzle 41 is moved to the second ejection position at a distance of 6 mm from the top surface of the umbrella portion 5 6 of the cover 5 5. And keep the ejection nozzle 41 at the second ejection position; After the ejection of 60 has started, when the stage 21 is to be rotated twice, the ejection nozzle 41 is moved to the third ejection position at a distance of 8 mm from the top surface of the umbrella portion 5 6 of the cover 55. And keep the ejection nozzle 41 at the third ejection position; after the ejection of the liquid ultraviolet curable resin 60 is started, when the stage 21 is rotated three times, the ejection nozzle 41 is moved to the cover 5 5 The distance between the top surfaces of the umbrella portions 5 6 is 10 mm at the fourth ejection position, and the ejection nozzle 41 is maintained at the fourth ejection position. The liquid ultraviolet curable resin 60 After the ejection starts, when the stage 21 is to be rotated four times, the ejection nozzle 41 is moved to the fifth ejection position at a distance of 12 mm from the top surface of the umbrella portion 56 of the cover 55, and The discharge nozzle 41 is held at the fifth discharge position. -63- (60) (60) 200414140 In the foregoing embodiment and the foregoing embodiment, the cover 5 5 having the umbrella portion 5 6 having a circular planar shape and a trapezoidal projection shape on the side is used, but it is not It is necessary to use the cover 5 5 of the umbrella portion 5 6 having a circular planar shape and a trapezoidal projection shape on the side; as long as the umbrella portion 5 6 has a flat top surface or a concave top surface, the sides of the umbrella portion 5 6 are also It may be formed by a curved surface, and a cover 5 5 having a circular plate-shaped umbrella portion 5 6 may be used. Furthermore, in the foregoing embodiment, a liquid ultraviolet-curable resin 60 having a viscosity of 5,000 percent poise was applied to the recording layer 3 by spin coating to form a light transmitting layer 4 In the foregoing embodiment, a liquid ultraviolet curable resin 60 having a viscosity of 4800 percent poise was applied to the recording layer 3 by spin coating to form a light transmitting layer. 4; However, it is not necessary to use a liquid ultraviolet curable resin having a viscosity of 5000 percent poise or 4 800 percent poise to form a light transmitting layer, as long as it has a viscosity of 2000 to 10,000 percent poise, Liquid ultraviolet curable resins of various viscosities can be used. Further, in the foregoing embodiment and the foregoing embodiment, the stage 21 of the spin coating apparatus is rotated at a speed of 20 r.pm while the liquid is discharged toward the top surface of the umbrella portion 5 6 of the cover 5 5. UV curable resin; however, when the liquid UV curable resin is ejected toward the top surface of the umbrella portion 5 6 of the cover 5 5, it is not necessary to rotate the stage 2 1 of the spin coating device. The speed is maintained at 20 r.p.m. When the liquid ultraviolet curable resin 'is discharged toward the top surface of the umbrella portion 5 6 of the cover 5 5, the stage 2 1 of the spin coating device is simply discharged. The rotation speed can be kept in the range of 5 to 1 OOr.pm, ideally in the range of 10 to 50r.pm. -64-(61) (61) 200414140 Furthermore, in the foregoing embodiment and the foregoing embodiment, the liquid ultraviolet curable resin 60 is spit on the top surface of the umbrella portion 56 of the cover 55, and the liquid After the discharge of the shaped ultraviolet curable resin 60 is completed, the stage 21 of the spin coating apparatus is rotated at a speed of 200 Or.pm, and is discharged onto the top surface of the umbrella portion 5 6 of the cover 5 5. The liquid UV-curable resin 60 is spread on the surface of the recording layer 3 or the reflective layer formed on the substrate 2 to form a thin film of the UV-curable resin 60. However, it is not necessary to spin-coat the film. The stage of the cloth device rotates at a speed of 2000 r.pm. 'The liquid ultraviolet curable resin 60, which is ejected on the top surface of the umbrella portion 5 6 of the cover 5 5, is unrolled until it is formed on the substrate 2. A thin film of the ultraviolet curable resin 60 is formed on the surface of the recording layer 3 or the reflective layer; and the number of rotations of the stage 2 of the spin coating device can be determined based on the viscosity of the liquid ultraviolet curable resin 60. select. In addition, in the foregoing embodiment and the foregoing embodiment, the light-transmitting layer 60 is formed by ejecting liquid ultraviolet curable resin 60 from the ejection outlet of the ejection nozzle 41 toward the top surface of the umbrella portion 56 of the cover 55. 4; However, it is not necessary to discharge the ultraviolet curable resin 60 from the discharge port of the discharge nozzle 41 toward the top surface of the umbrella portion 56 of the cover 5 5 to form the light transmitting layer 4; The ultraviolet curable resin is ejected from the ejection opening of the ejection nozzle 41 toward the top surface of the umbrella portion 56 of the cover 55 to form a light transmitting layer 4. [Effects of the Invention] According to the present invention, even if a highly viscous UV-curable tree-65- (62) (62) 200414140 grease is used, the light-transmitting layer is formed by spin coating. In some cases, it is also possible to provide a method and an apparatus for manufacturing an optical disc, which can form a desired light transmission layer having no air bubbles and having excellent surface properties. [Brief Description of the Drawings] FIG. 1 is a schematic perspective view showing an optical disc manufactured by a method for manufacturing an optical disc in an ideal embodiment of the present invention. Fig. 2 is a slightly enlarged sectional view of a portion shown in A of Fig. 1. Fig. 3 is a schematic perspective view showing important parts of an apparatus for manufacturing an optical disc according to a preferred embodiment of the present invention. Fig. 4 is a schematic longitudinal sectional view of an important part of the optical disc manufacturing apparatus shown in Fig. 3; Fig. 5 is a block diagram of a control system, an input system, and a drive system of the spin coating apparatus. Fig. 6 is a schematic cross-sectional view showing a state where the data recording unit is fixed on a stage of a spin coating apparatus. Figure 7 is a schematic perspective view of a cover. Fig. 8 is a schematic central sectional view of the cover shown in Fig. 7. Fig. 9 is a schematic sectional view showing a state where the cover is set at a predetermined position of the data recording unit which has been set on the stage. Fig. 10 is a schematic cross-sectional view showing a state where the liquid ultraviolet curable resin is discharged from the discharge nozzle located at the first discharge position toward the top surface of the umbrella portion of the cover. -66 ”(63) (63) 200414140 Figure 11 shows a liquid UV-curable resin that is discharged from the discharge nozzle to a liquid having a thickness of about 4 mm on the top surface of the umbrella portion that has been formed on the cover. A slightly enlarged cross-sectional view of the state of the surface of the UV-curable resin film in the shape of a film. Figures 12 and 12 show a state in which a thin film of a UV-curable resin having a predetermined thickness is formed on a recording layer of a data recording unit. Fig. 13 is a schematic cross-sectional view showing a state in which ultraviolet rays are irradiated on a thin film of an ultraviolet curable resin formed on a recording layer of a data recording unit Xinyuan. [Symbol Description] 1 : Optical disc 2: Substrate 3: Recording layer 4: Light transmitting layer Φ 5: Preset groove 6: Center hole 7: Clamping area 1 0: Spin coating device 2 1: Stage · 2 2: First Protrusion 2 3: 2nd protrusion 24: 1st suction port -67- (64) (64) 200414140 2 5: 2nd suction port

3 0 :控制單元 3 1 : ROM 32 : RAM 3 3 :鍵盤 3 4 :載物台馬達 3 5 :第1吸氣泵 3 6 :第2吸氣泵 _ 37 :第1臂 3 8 :第1臂移動手動 39 :第2臂 40 :第2臂移動手段 4 1 :吐出噴嘴 4 2 :吐出噴嘴馬達 4 3 :吐出噴嘴驅動手段 44 :紫外線燈 _ 45 :紫外線 5 0 :資料記錄單元 55 :蓋 5 6 :傘部 ' 5 6 a :凹部 产 5 7 :支持軸 5 8 :突起部 60 :液狀的紫外線硬化性樹脂 -68-3 0: control unit 3 1: ROM 32: RAM 3 3: keyboard 3 4: stage motor 3 5: first suction pump 3 6: second suction pump_ 37: first arm 3 8: first Arm movement manual 39: 2nd arm 40: 2nd arm moving means 4 1: ejection nozzle 4 2: ejection nozzle motor 4 3: ejection nozzle driving means 44: ultraviolet lamp _ 45: ultraviolet rays 5 0: data recording unit 55: cover 5 6: Umbrella part 5 6 a: Recessed part 5 7: Support shaft 5 8: Protruded part 60: Liquid UV-curable resin -68-

Claims (1)

(1) (1)200414140 拾、申請專利範圍 1 · 一種光碟片之製造方法,其特徵爲: 將被形成有記錄層的圓形基板,設置在旋轉塗佈裝置 的載物台上,然後將在其頂部的中央部形成有可以把持的 把持軸之蓋,設置在前述基板上,塞住被形成在前述基板 的中央部之中心孔,接著一邊使前述載物台以低速旋轉, 一邊使應該吐出液狀的放射線硬化性樹脂的被吐出面和吐 出噴嘴的吐出口之間的吐出距離成爲〇.5mm至5mm,來 使前述吐出噴嘴位於前述蓋的前述頂面的上方,而從前述 吐出噴嘴的前述吐出口,吐出液狀的放射線硬化性樹脂。 2 ·如申請專利範圍第1項所述的光碟片之製造方 法’其中按照從前述吐出噴嘴的前述吐出口,朝向前述蓋 的頂面’開始吐出液狀的放射線硬化性樹脂之後的經過時 間’步進狀地控制前述吐出噴嘴的前述吐出口的大約垂直 方向的位置。 3 ·如申請專利範圍第丨項所述的光碟片之製造方 法’其中按照從前述吐出噴嘴的前述吐出口,朝向前述蓋 的頂面’開始吐出液狀的放射線硬化性樹脂之後的經過時 間’連續地控制前述吐出噴嘴的前述吐出口的大約垂直方 向的位置。 4 ·如申請專利範圍第1、2或3項所述的光碟片之 製造方法’其中一邊使前述載物台以低速旋轉,一邊控制 前述吐出噴嘴的前述吐出口的大約垂直方向的位置,使得 前述被吐出面和前述吐出噴嘴的前述吐出口之間的吐出距 -69- (2) (2)200414140 離成爲1mm至3mm,而從前述吐出噴嘴的前述吐出口, 將液狀的放射線硬化性樹脂,吐在前述被吐出面上。 5 ·如申請專利範圍第1 、2或3項所述的光碟片之 製造方法,其中前述液狀的放射線硬化性樹脂,具有 2000至1 0000百分泊的黏度。 6 ·如申請專利範圍第4項所述的光碟片之製造方 法,其中前述液狀的放射線硬化性樹脂,具有2000至 1 0000百分泊的黏度。 籲 7 ·如申請專利範圍第1 、2或3項所述的光碟片之 製造方法,其中一邊使前述載物台以 5r.p.m至lOOr.p.m 的速度旋轉,一邊從前述吐出噴嘴的前述吐出口,將前述 液狀的放射線硬化性樹脂,吐在前述被吐出面上。 8 .如申請專利範圍第4項所述的光碟片之製造方 法,其中一邊使前述載物台以5r.p.m至l〇〇r.p.m的速度 旋轉,一邊從前述吐出噴嘴的前述吐出口,將前述液狀的 放射線硬化性樹脂,吐在前述被吐出面上。 0 9 ·如申請專利範圍第5項所述的光碟片之製造方 法,其中一邊使前述載物台以5r.p.m至lOOr.p.m的速度 旋轉,一邊從前述吐出噴嘴的前述吐出口,將前述液狀的 放射線硬化性樹脂,吐在前述被吐出面上。 · 1 0 ·如申請專利範圍第6項所述的光碟片之製造方 , 法,其中一邊使前述載物台以lOr.P.m至50r.p.m的速度 旋轉,一邊從前述吐出噴嘴的前述吐出口,將前述液狀的 放射線硬化性樹脂,吐在前述被吐出面上。 -70- (3) (3)200414140 1 1 ·如申請專利範圍第1 、2或3項所述的光碟片 之製造方法,其中進而具備:使前述載物台以高速旋轉, 將被吐在前述蓋的前述頂面上之前述液狀的放射線硬化性 樹脂’展開至前述記錄層上的步驟。 1 2 ·如申請專利範圍第4項所述的光碟片之製造方 法’其中進而具備:使前述載物台以高速旋轉,將被吐在 前述蓋的前述頂面上之前述液狀的放射線硬化性樹脂,展 開至前述記錄層上的步驟。 φ 1 3 ·如申請專利範圍第5項所述的光碟片之製造方 法,其中進而具備:使前述載物台以高速旋轉,將被吐在 前述蓋的前述頂面上之前述液狀的放射線硬化性樹脂,展 開至前述記錄層上的步驟。 1 4 .如申請專利範圍第6項所述的光碟片之製造方 法,其中進而具備:使前述載物台以高速旋轉,將被吐在 前述蓋的前述頂面上之前述液狀的放射線硬化性樹脂,展 開至前述記錄層上的步驟。 φ 1 5 .如申請專利範圍第7項所述的光碟片之製造方 法,其中進而具備:使前述載物台以高速旋轉,將被吐在 前述蓋的前述頂面上之前述液狀的放射線硬化性樹脂,展 開至前述記錄層上的步驟。 < 1 6 .如申請專利範圍第8項所述的光碟片之製造方 > 法,其中進而具備:使前述載物台以高速旋轉,將被吐在 前述蓋的前述頂面上之前述液狀的放射線硬化性樹脂’展 開至前述記錄層上的步驟。 -71 · (4) (4)200414140 17·如申請專利範圍第9項所述的光碟片之製造方 法,其中進而具備:使前述載物台以高速旋轉,將被吐在 前述蓋的前述頂面上之前述液狀的放射線硬化性樹脂’展 開至前述記錄層上的步驟。 1 8 .如申請專利範圍第1 〇項所述的光碟片之製造 方法,其中進而具備:使前述載物台以高速旋轉,將被吐 在前述蓋的前述頂面上之前述液狀的放射線硬化性樹脂, 展開至前述記錄層上的步驟。 · 19·一種光碟片之製造裝置,其特徵爲: 具備:可以固定基板且可以旋轉的載物台; 蓋固定手段,將用來塞住被形成在前述基板的中央部 之中心孔的蓋,固定在已經被固定於前述載物台上的前述 基板上; 使前述載物台旋轉的載物台旋轉手段; 從吐出口,將液狀的放射線硬化性樹脂朝向前述蓋的 頂面吐出的吐出噴嘴; 修 使前述吐出噴嘴至少往大約垂直方向移動的吐出噴嘴 移動手段;及 控制手段,用來控制前述載物台旋轉手段和前述吐出 噴嘴移動手段; · 前述控制手段,係被構成··按照從前述吐出噴嘴的前 _ 述吐出口 ’朝向前述蓋的頂面,開始吐出液狀的放射線硬 化性樹脂之後的經過時間,控制前述吐出噴嘴移動手段, 來控制前述吐出噴嘴的大約垂直方向的位置。 -72- (5) (5)200414140 2 0 ·如申請專利範圍第1 9項所述的光碟片之製造 裝置,其中前述控制手段,係被構成:一邊控制前述旋轉 台旋轉手段,使前述載物台以低速旋轉,一邊控制前述吐 出噴嘴移動手段,使得應該吐出液狀的放射線硬化性樹脂 的被吐出面和前述吐出噴嘴的前述吐出口之間的吐出距離 成爲0.5mm至5mm,來控制前述吐出噴嘴的大約垂直方 向的位置。 2 1 ·如申請專利範圍第1 9或2 0項所述的光碟片 之製造裝置’其中前述控制手段,係被構成:一邊控制前 述旋轉台旋轉手段,使前述載物台以低速旋轉,一邊控制 前述吐出噴嘴移動手段,使得前述被吐出面和前述吐出噴 嘴的前述吐出口之間的吐出距離成爲 1mm至 3mm,來控 制前述吐出噴嘴的大約垂直方向的位置。 2 2 ·如申請專利範圍第1 9或2 0項所述的光碟片 之製造裝置,其中前述控制手段,係被構成:按照從前述 吐出噴嘴的前述吐出口,朝向前述蓋的頂面,開始吐出液 狀的放射線硬化性樹脂之後的經過時間,步進狀地控制 前述吐出噴嘴的前述吐出口的大約垂直方向的位置。 2 3 ·如申請專利範圍第2 1項所述的光碟片之製造 裝置,其中前述控制手段,係被構成:按照從前述吐出噴 嘴的前述吐出口,朝向前述蓋的頂面,開始吐出液狀的放 射線硬化性樹脂之後的經過時間,步進狀地控制前述吐出 噴嘴的前述吐出口的大約垂直方向的位置。 2 4 ·如申請專利範圍第1 9或2 0項所述的光碟片 -73- (6) (6)200414140 之製造裝置,其中前述控制手段,係被構成:按照從前述 吐出噴嘴的前述吐出口,朝向前述蓋的頂面,開始吐出液 狀的放射線硬化性樹脂之後的經過時間,連續地控制前述 吐出噴嘴的前述吐出口的大約垂直方向的位置。 2 5 ·如申請專利範圍第2 1項所述的光碟片之製造 裝置,其中前述控制手段,係被構成:按照從前述吐出噴 嘴的前述吐出口,朝向前述蓋的頂面,開始吐出液狀的放 射線硬化性樹脂之後的經過時間,連續地控制前述吐出噴 嘴的前述吐出口的大約垂直方向的位置。(1) (1) 200414140 Pickup, patent application scope 1 · A method for manufacturing an optical disc, characterized in that: a circular substrate on which a recording layer is formed is set on a stage of a spin coating device, and then A cover for holding a gripping shaft is formed at a center portion of the top portion, and is provided on the substrate, and a center hole formed in the center portion of the substrate is plugged. Then, while the stage is rotated at a low speed, The discharge distance between the discharge surface of the liquid radiation hardening resin and the discharge port of the discharge nozzle is 0.5 mm to 5 mm, so that the discharge nozzle is positioned above the top surface of the cover, and from the discharge nozzle The aforementioned discharge port discharges a liquid radiation-curable resin. 2 · The method for manufacturing an optical disc according to item 1 of the scope of the patent application, wherein the elapsed time after the liquid radiation-curable resin starts to be ejected toward the top surface of the cover according to the ejection outlet from the ejection nozzle. The approximately vertical position of the discharge port of the discharge nozzle is controlled stepwise. 3 · The method for manufacturing an optical disc according to item 丨 of the patent application 'wherein the elapsed time after the liquid radiation-curable resin starts to be ejected toward the top surface of the cover according to the ejection outlet from the ejection nozzle' The approximately vertical position of the discharge port of the discharge nozzle is continuously controlled. 4 · The manufacturing method of the optical disc according to item 1, 2, or 3 of the scope of the patent application, wherein the position of the ejection outlet of the ejection nozzle is controlled in a vertical direction while the stage is rotated at a low speed, so that The ejection distance between the ejected surface and the ejection outlet of the ejection nozzle is -69- (2) (2) 200414140, and the ejection distance of the ejection nozzle from the ejection nozzle is 1 mm to 3 mm. The resin is spit on the surface to be discharged. 5. The manufacturing method of the optical disc according to the items 1, 2, or 3 in the scope of the patent application, wherein the liquid radiation-curable resin has a viscosity of 2000 to 10,000 percent poise. 6. The manufacturing method of the optical disc according to item 4 of the scope of the patent application, wherein the liquid radiation-curable resin has a viscosity of 2,000 to 10,000 percent poise. Caution 7 · The method for manufacturing an optical disc as described in item 1, 2, or 3 of the scope of patent application, wherein the aforementioned stage from the aforementioned ejection nozzle is rotated from the aforementioned ejection nozzle while the aforementioned stage is rotated at a speed of 5r.pm to 100r.pm. The outlet is spitting the liquid radiation-curable resin on the discharge surface. 8. The method for manufacturing an optical disc according to item 4 of the scope of the patent application, wherein the stage is rotated at a speed of 5 r.pm to 100 rpm, and the aforementioned ejection port of the ejection nozzle is used to rotate the aforementioned stage. The liquid radiation-curable resin is ejected onto the ejected surface. 0 9 · The method for manufacturing an optical disc as described in item 5 of the scope of the patent application, wherein while rotating the stage at a speed of 5 r.pm to 100 r.pm, from the ejection outlet of the ejection nozzle, the aforementioned The liquid radiation-curable resin is ejected onto the ejected surface. · 10 · The method for manufacturing an optical disc according to item 6 of the scope of patent application, in which the aforementioned stage is rotated from lOr.Pm to 50r.pm while the aforementioned ejection port of the ejection nozzle is rotated And spitting the liquid radiation-curable resin onto the discharge surface. -70- (3) (3) 200414140 1 1 · The method for manufacturing an optical disc as described in item 1, 2, or 3 of the scope of patent application, further comprising: rotating the aforementioned stage at a high speed to be spit out The step of spreading the liquid radiation-curable resin 'on the top surface of the lid onto the recording layer. 1 2 · The method for manufacturing an optical disc according to item 4 of the scope of the patent application, further comprising: rotating the stage at a high speed to harden the liquid radiation spit on the top surface of the cover. Step of developing a resin onto the recording layer. φ 1 3 · The method for manufacturing an optical disc according to item 5 of the patent application scope, further comprising: rotating the stage at a high speed to spit the liquid radiation on the top surface of the cover. A step of developing a curable resin onto the recording layer. 14. The method for manufacturing an optical disc according to item 6 of the scope of patent application, further comprising: rotating the stage at a high speed to harden the liquid radiation spit on the top surface of the cover. Step of developing a resin onto the recording layer. φ 1 5. The method for manufacturing an optical disc according to item 7 of the scope of patent application, further comprising: rotating the stage at a high speed to spit the liquid radiation on the top surface of the cover. A step of developing a curable resin onto the recording layer. < 1 6. The method for manufacturing an optical disc according to item 8 of the patent application range, further comprising: rotating the stage at a high speed to be spit on the top surface of the cover; The step of spreading the liquid radiation-curable resin 'on the recording layer. -71 · (4) (4) 200414140 17 · The method for manufacturing an optical disc as described in item 9 of the scope of patent application, further comprising: rotating the stage at a high speed to be ejected on the top of the cover The step of spreading the liquid radiation-curable resin 'on the surface onto the recording layer. 18. The method for manufacturing an optical disc according to item 10 of the scope of patent application, further comprising: rotating the stage at a high speed to spit the liquid radiation on the top surface of the cover. A step of developing a curable resin onto the recording layer. · 19 · An apparatus for manufacturing an optical disc, comprising: a stage on which a substrate can be fixed and rotatable; and a cover fixing means for covering a cover formed in a central hole of a central portion of the substrate, Fixed on the substrate that has been fixed on the stage; a stage rotation means for rotating the stage; and ejecting liquid radiation curable resin toward the top surface of the cover from a discharge port Nozzles; repairing the ejection nozzle moving means for moving the ejection nozzle at least approximately in the vertical direction; and control means for controlling the stage rotation means and the ejection nozzle movement means; the aforementioned control means is constituted according to The elapsed time after the ejection nozzle from the front of the ejection nozzle toward the top surface of the lid and starting to eject liquid radiation-curable resin is controlled by the ejection nozzle moving means to control the approximately vertical position of the ejection nozzle. . -72- (5) (5) 200414140 2 0 · The manufacturing apparatus of the optical disc described in item 19 of the scope of patent application, wherein the aforementioned control means is configured to control the rotation means of the rotary table so that the aforementioned load While the stage is rotating at a low speed, the ejection nozzle moving means is controlled so that the ejection distance between the ejection surface of the liquid radiation-curable resin to be ejected and the ejection outlet of the ejection nozzle is 0.5 mm to 5 mm to control the ejection nozzle. The position of the ejection nozzle is approximately vertical. 2 1 · The manufacturing apparatus of the optical disc according to item 19 or 20 of the scope of the patent application, wherein the aforementioned control means is configured to: while controlling the rotation means of the rotary table to rotate the stage at a low speed, The ejection nozzle moving means is controlled so that the ejection distance between the ejection surface and the ejection outlet of the ejection nozzle is 1 mm to 3 mm to control the position of the ejection nozzle in a vertical direction. 2 2 · The device for manufacturing an optical disc according to item 19 or 20 of the scope of patent application, wherein the control means is configured to start from the ejection outlet from the ejection nozzle toward the top surface of the cover. The elapsed time after the liquid radiation-curable resin is discharged, the position of the discharge outlet of the discharge nozzle in a substantially vertical direction is controlled stepwise. 2 3 · The device for manufacturing an optical disc according to item 21 of the scope of patent application, wherein the control means is configured to start discharging liquid from the discharge opening from the discharge nozzle toward the top surface of the cover. The elapsed time after the radiation-hardenable resin is used to control the position of the discharge port of the discharge nozzle in a substantially vertical direction in a stepwise manner. 2 4 · The manufacturing apparatus of the optical disc -73- (6) (6) 200414140 as described in item 19 or 20 of the scope of patent application, wherein the aforementioned control means is constituted by the aforementioned ejection from the aforementioned ejection nozzle The outlet is directed toward the top surface of the cover, and the position in the vertical direction of the discharge outlet of the discharge nozzle is continuously controlled in the elapsed time after the liquid radiation-curable resin starts to be discharged. 2 5 · The device for manufacturing an optical disc according to item 21 of the scope of patent application, wherein the control means is configured to start discharging liquid from the ejection nozzle from the ejection nozzle toward the top surface of the cover. The elapsed time subsequent to the radiation-curable resin continuously controls the position of the discharge port of the discharge nozzle in the approximately vertical direction. -74--74-
TW92135264A 2002-12-25 2003-12-12 Method and apparatus for manufacturing an optical recording disk TW200414140A (en)

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