TWI311685B - Photomask, method of manufacturing the same and blank mask used in the method - Google Patents

Photomask, method of manufacturing the same and blank mask used in the method Download PDF

Info

Publication number
TWI311685B
TWI311685B TW095134935A TW95134935A TWI311685B TW I311685 B TWI311685 B TW I311685B TW 095134935 A TW095134935 A TW 095134935A TW 95134935 A TW95134935 A TW 95134935A TW I311685 B TWI311685 B TW I311685B
Authority
TW
Taiwan
Prior art keywords
layer
hole
transmittance adjusting
transmittance
light blocking
Prior art date
Application number
TW095134935A
Other languages
Chinese (zh)
Other versions
TW200717177A (en
Inventor
Bu Yeon Choi
Sang Pil Yun
Jin Su Seong
Hyun Seok Uhm
Chae Min Lim
Original Assignee
Pkl Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pkl Co Ltd filed Critical Pkl Co Ltd
Publication of TW200717177A publication Critical patent/TW200717177A/en
Application granted granted Critical
Publication of TWI311685B publication Critical patent/TWI311685B/en

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/38Masks having auxiliary features, e.g. special coatings or marks for alignment or testing; Preparation thereof
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/36Masks having proximity correction features; Preparation thereof, e.g. optical proximity correction [OPC] design processes
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/38Masks having auxiliary features, e.g. special coatings or marks for alignment or testing; Preparation thereof
    • G03F1/42Alignment or registration features, e.g. alignment marks on the mask substrates

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Description

1311685 21976pif 九、發明說明: • 【發明所屬之技術領域】 . .本發明關於一種用於製造平面顯示器(flat panel • disPla>0的罩幕及其製造方法’且特別是有關於一種光罩、 • 光罩的製造方法以及此方法所使用的空白罩幕。 【先前技術】 一種灰階(gray tone)罩幕或一種狭縫罩幕被使用於製 φ 造平面顯示器的過程中,例如在製造液晶顯示器(liqUid crystal display LCD)的過程中,以減少光罩數。 個灰階罩幕包括一透射率調整部。少於用在製造 LCD之曝光裝置的功率解析度限制的一個精細圖案被形 成在透射率調整部。灰階罩幕調整穿透透射率調整部之光 量。灰階罩幕是用於選擇性地留下基板上對應於透射率 整部之區域的光阻層的光罩。 °° 一般’用於製造大尺寸LCD之曝光裝置的功率解析度 限制約為2.5至4.0微米。在圖ία所示之灰階罩幕,透射 籲 率調整部A2之精細圖案1〇的線寬w與精細圖案1〇之間 ' 的間隔寬度12小於2.5微米。圖1B繪示通過灰階罩幕之 光強度的分佈。形成在透射率調整部A2之精細圖案1〇的 功率解析度限制低於曝光裝置之功率解析度限制。、、 參照圖1A與1B,通過灰階罩幕之透射率調整部八2 的光強度小於通過灰階罩幕之穿透部A1的光強度。因此, 在塗佈於LCD基板上之光阻層,穿透對應於灰階罩幕之 射率調整部A2的部份之光量小於穿透對應於灰階罩幕之 6 1311685 21976pif 穿透部A1的部份之光量。所以,當塗佈於 光阻層被使用灰階罩幕而曝光轉著材料被J板士之 層殘留在對應於灰階罩幕之透射率調^^光阻 二=吏用塗佈於LCD基板上之光阻層執 Z 4=(ashing)製程被執行以移除剩餘的光阻V。 之後,可在剩餘的光阻層被移除之部份 曰 以此方式,當習知灰階罩幕被使用時,人= 所需之光罩數量可從兩個減少為—個。^基板 ΐ,1〇=:二誤差應少於士。·1微米,且精二 =10 :間的線寬誤差(即線寬範圍(最大線寬 見))應少於±0.1微米。 此條件為於使用在目前平_示^之大尺寸光罩 確度與均勻性(線寬範圍)而言是嚴格的條件。 此外’用於觀LCD之群的尺找來已增加至大於 1 A尺。對於具有上述大尺寸的光罩*言,要滿^上述精 確度與均勻性的條件是很困難的。 、、因此,當使用習知灰階罩幕,每次執行曝光製程時通 過透射率调整部A2之光透射率可能不同。因此,每次執 行曝光製程時留在LCD基板上之光阻層的厚度可能不同。 【發明内容】 本發明提供一種光罩,其不需形成少於曝光裝置之功 率解析度限制的精細圖案來調整透射率,即使是關於大光 罩通過透射率調整部之光量仍被做成均勻,且可獲得留在 1311685 21976pif LCD基板上之植層的厚度之均勾性。 f發明也提供—縣罩的製造方法。 發明也提供—種在光罩的製造方法使用的空白軍 秦0 ,據本發明的—方面,提供—種光罩,包括:透明基 ’射率”肖整層,形成於透明基板上;以及光阻隔層, 形成於透料調整層上,其中暴露透明基㈣第一孔形成 在包括^射率調整層與光阻隔層的疊層,且暴露透射率調 整層的第二孔形成在光阻隔層。 透射率調整層可為當人射光之波長為 300-500奈米時 具有透射率為10-70%之厚度的材料層。此外,透射率調整 層可為具有入射光之相位最大地被改變6〇。之厚度的材料 層。 透射率調整層與光阻隔層可為相同材料層。 根據本發明的另-方面,提供一種光罩,包括:透明 基板;光阻隔層’形成於透㈣板上;以及透射率調整層 形成於透明基板與光阻隔層上’其中暴露透明基板的多個 第-孔在光關層’且透射率調整層僅填充於—部份的第 一孔。 當入射光之波長為300-500奈米時,透射率調整層可 具有透射率為10-70%之厚度。此外,透射率調整層可具有 入射光之相位最大地被改變60。之厚度。 根據本發明=再一方面,提供—種光罩的製造方法, 方法包括:形成疊層,包括透射率調整層與光阻隔層,其 I3116l 相繼地堆疊在透明基板上; 在一 光第一孔包括:覆蓋光阻層於疊層;選擇性地曝光 應於第一孔的區域;藉由移除光阻層Ξ曝= 域而顯露一部份疊層;佶用欽队a t 曰b 钱刻罩慕而射丨翁· ΛΑ #除曝光的區域之光阻層做為 Ζ 而蝕刻顯路的部分叠層;以及移除光阻層。 一$ V、弟—孔可包括.覆蓋光阻層,以填充疊層上的第 除光阻阻層對應於第二孔的區域’·藉由移 曝域而顯露—部份光阻隔層;使用移除 隔声·\ί光阻層做為飯刻罩幕而敍刻暴露的部分光阻 ⑽’以及移除曝糾部分已移除的光阻層。f刀尤11 乎時==可形成為當入射光之波長為卿奈 未時具有透射率為购%之厚度。此外,透 ^ 形成為入射光之相位最大地被改變60。之厚度。°正曰 於疊2成所述第一孔時’對準標記可與^一孔一起形成 之金阻隔層可由含具有不同钱刻選擇性 之金屬的材料層所形成。 方法t本SI?又一方面’提供一種光罩的製造方法, 括.形成光阻隔層於透明基板上;在光阻隔層形成 基板的至少兩個孔;以及填充透射率調整層於至 在此方法,在形成至少兩個孔時,對準標記可與所述 1311685 2l976pif 孔一起形成。 形成至少兩個孔可包括:覆蓋光阻層於光阻隔 k擇性地曝光光阻層對應於所述孔的區域;終二, 的區域而顯露—部份光阻隔層;^顯“ 九阻隔層;以及移除光阻層。 隔個孔可包括:形成填充所述孔且覆蓋光阻 上;選擇性地曝光所述孔中被選擇且填充有透射: =。正a之孔周圍的光阻層;藉由移除光阻層之曝光 擇孔周嶋射率調整層;移除顯露的部;: Μ玉層,以及移除曝光的部分已移除的光阻層。 ,射率調整層可形成為當人射光之波長為3GL500夺 有透射率為職%之厚度。此外,透射率調整層可 v成為入射光之相位最大地被改變00。之厚度。 J射率調整層與光阻隔層可由含具有不:蝕刻選擇性 之金屬的材料層所形成。 根據本發明的另—方面,提供_種光罩的製造方法, 法包括·形成光阻闕於透明基板上;在光阻隔層形 成暴露透縣板的第—孔;以及填充透射率調整層於第一 孔,以及在光阻隔層離開第一孔處形成暴露透明基板的第 一孑L。 在此方法令,對準標記可在形成第一孔時與第一孔一 起形成。 形成第一孔可包括:覆蓋光阻層於光阻隔層上;選擇 性地曝光光阻層對應於第一孔的區 曝光的區域而顯露一部份光阻 =由移除光阻層之 隔層;以及歸光阻層。"θ ’ _顯露的部分光阻 填充第一孔與形成第二孔可 ^射率調整層於光阻隔層上;覆蓋光阻 上;選擇性地曝光光阻層對廡於第、透射羊廣 2阻層之曝光的部分而顯露:部料射』:m 露的部分與顯露的部分下二光阻隔 乎整層可形成為當入射光之波長為3〇〇_500夺 率為_%之厚度。此外,透射率調整層; /成為入射光之相位最大地被改變6〇。之厚度。 夕j射率5周整層與光阻隔層可由含具有不同侧選擇性 之金屬的材料層所形成。 、根據本發明的再一方面,提供-種空白罩幕,包括: 透月基板,透射率調整層,形成於透明基板上丨光阻隔層, 形成於透射率調整層上;以及光阻層,形成於光阻隔層上。 光阻隔層可包括抗反射膜。 透射率調整層可具有當入射光之波長為300_500奈米 時透射率為10-70%之厚度。 透射率調整層可具有入射光之相位最大地被改變60。 之厚度。 透射率調整層與光阻隔層可由含具有不同蝕刻選擇性 之金屬的材料層所形成。 11 1311685 21976pif 根據本發明,可獲得光罩之透射率調整部的均勻光透 射率。因此,在製造LCD的製程中可獲得留在基板上之光 阻層的厚度之均勻性。因此,因為留下之光阻層厚度的不 均勻性所造成的習知問題可被解決。如此,製造LCD的製 程之可靠度可被改善。此外,既然根據本發明之光罩在透 射率調整部不包括少於曝光裝置之功率解析度限制的精細1311685 21976pif IX. Description of the invention: • Technical field to which the invention pertains. The present invention relates to a mask for manufacturing a flat panel (disPla > 0 and a method of manufacturing the same), and more particularly to a mask, • The method of manufacturing the mask and the blank mask used in this method. [Prior Art] A gray tone mask or a slit mask is used in the process of making a flat panel display, for example, in manufacturing. In the process of liquid crystal display (liqUid crystal display LCD), the number of masks is reduced. The gray scale mask includes a transmittance adjusting portion, and a fine pattern which is less than the power resolution limit of the exposure device for manufacturing the LCD is formed. In the transmittance adjusting portion, the gray scale mask adjusts the amount of light passing through the transmittance adjusting portion. The gray scale mask is a mask for selectively leaving a photoresist layer on the substrate corresponding to the entire region of the transmittance. ° ° Generally, the power resolution limit for the exposure apparatus used to manufacture large-size LCDs is about 2.5 to 4.0 μm. In the gray-scale mask shown in Figure ία, the transmission rate adjustment unit A2 is fine. The interval width 12 between the line width w of the fine pattern 1 与 and the fine pattern 1 小于 is less than 2.5 μm. Fig. 1B shows the distribution of light intensity by the gray scale mask. The fine pattern 1 formed in the transmittance adjusting portion A2 The power resolution limit of 〇 is lower than the power resolution limit of the exposure device. Referring to FIGS. 1A and 1B, the light intensity of the transmittance adjusting portion VIII through the gray scale mask is smaller than the penetration portion A1 through the gray scale mask. Therefore, in the photoresist layer coated on the LCD substrate, the amount of light penetrating the portion corresponding to the gradation adjusting portion A2 of the gray-scale mask is smaller than the penetration corresponding to the gray-scale mask 6 1311685 21976 pif The amount of light that penetrates part of the portion A1. Therefore, when the photoresist layer is applied to the photoresist layer, the gray-scale mask is used, and the exposed material is left by the layer of the J-plate to the transmittance corresponding to the gray-scale mask. Photoresist 2 = The photoresist layer applied on the LCD substrate is subjected to a Z 4 = (ashing) process to remove the remaining photoresist V. After that, the remaining photoresist layer can be removed. In this way, when the conventional grayscale mask is used, the number of masks required by the person = can be reduced from two to - ^^Substrateΐ, 1〇=: The second error should be less than ±1 μm, and the line width error (ie, the line width range (see the maximum line width)) should be less than ±0.1 μm. This condition is a strict condition for the use of the mask size and uniformity (line width range) of the large size of the current flat panel. In addition, the ruler for viewing the LCD has been increased to more than 1 A ruler. For the reticle having the above-mentioned large size, it is difficult to satisfy the above conditions of accuracy and uniformity. Therefore, when using a conventional gray scale mask, each pass of the exposure process is passed. The light transmittance of the transmittance adjusting portion A2 may be different. Therefore, the thickness of the photoresist layer remaining on the LCD substrate may be different each time the exposure process is performed. SUMMARY OF THE INVENTION The present invention provides a photomask that does not need to form a fine pattern that is less than the power resolution limit of an exposure device to adjust transmittance, even if the amount of light passing through the transmittance adjusting portion of the large mask is made uniform. And the uniformity of the thickness of the implant layer remaining on the 1311685 21976 pif LCD substrate can be obtained. The f invention also provides a method of manufacturing the county cover. The invention also provides a blank military Qin 0 used in the manufacturing method of the reticle. According to the invention, a reticle is provided, comprising: a transparent base 'radiation rate', which is formed on a transparent substrate; a light blocking layer formed on the light transmissive adjustment layer, wherein the exposed transparent substrate (four) first hole is formed on the laminate including the photo-adjusting layer and the light blocking layer, and the second hole exposing the transmittance adjusting layer is formed in the light blocking layer The transmittance adjusting layer may be a material layer having a thickness of 10 to 70% when the wavelength of the human light is 300-500 nm. Further, the transmittance adjusting layer may have the largest phase with incident light. The thickness of the material layer is changed. The transmittance adjusting layer and the light blocking layer may be the same material layer. According to another aspect of the present invention, there is provided a photomask comprising: a transparent substrate; the light blocking layer is formed in the transparent (four) And a transmittance adjusting layer formed on the transparent substrate and the light blocking layer, wherein the plurality of first holes exposing the transparent substrate are in the light blocking layer and the transmittance adjusting layer is filled only in the first portion of the portion. Wavelength The transmittance adjusting layer may have a thickness of from 10 to 70% at 300 to 500 nm. Further, the transmittance adjusting layer may have a thickness at which the phase of the incident light is most changed by 60. According to the present invention = one more In one aspect, a method of manufacturing a photomask is provided, the method comprising: forming a laminate comprising a transmittance adjusting layer and a light blocking layer, wherein the I3116l is successively stacked on the transparent substrate; and the first hole in the light comprises: covering the photoresist layer The laminate is selectively exposed to the area of the first hole; a portion of the laminate is exposed by removing the photoresist layer and exposing the field; · ΛΑ #excluding the photoresist layer of the exposed area as a Ζ etched part of the laminate; and removing the photoresist layer. A $ V, brother-hole may include a photoresist layer to fill the stack The first light-blocking resist layer corresponds to the area of the second hole'· is exposed by the exposed area--partial light-blocking layer; the use of removing the sound-insulating layer is used as a rice mask The exposed part of the photoresist (10)' and the photoresist layer that has been removed by removing the exposed portion. The f-knife is particularly effective == can be formed as When the wavelength of the incident light is qingnai, the transmittance is the thickness of the purchased %. Further, the transparent phase is formed such that the phase of the incident light is changed by a maximum of 60. The thickness is proportional to the stacking of the first hole. The gold barrier layer formed by the alignment mark together with the hole can be formed of a material layer containing a metal having a different selectivity. The method of the present invention is to provide a method for manufacturing a mask. Forming a light blocking layer on the transparent substrate; forming at least two holes of the substrate in the light blocking layer; and filling the transmittance adjusting layer to the method, in forming at least two holes, the alignment mark may be associated with the 1311685 2l976pif Forming the holes together. Forming the at least two holes may include: covering the photoresist layer to selectively expose the region of the photoresist layer corresponding to the hole in the photo-blocking layer; and exposing the region to a portion of the photo-blocking layer; Show "nine barrier layers; and remove the photoresist layer. Separating the apertures can include: forming the holes and covering the photoresist; selectively exposing the holes to be selected and filled with transmission: =. a photoresist layer around the hole of the positive a; removing the exposed portion by removing the exposure layer of the photoresist layer; removing the exposed portion; and removing the exposed portion of the exposed light Resistance layer. The radiation rate adjusting layer may be formed to have a thickness at which the wavelength of the human light is 3GL500 and the transmittance is %. Further, the transmittance adjusting layer v can become the phase of the incident light to be most changed by 00. The thickness. The J-radiation adjustment layer and the photo-barrier layer may be formed of a material layer containing a metal having a non-etching selectivity. According to another aspect of the present invention, there is provided a method of manufacturing a photomask comprising: forming a photoresist on a transparent substrate; forming a first hole exposing the permeation plate in the photo-blocking layer; and filling the transmittance adjusting layer a first aperture, and a first 孑L exposing the transparent substrate at the exit of the first aperture at the photointerference layer. In this method, the alignment mark can be formed with the first hole when the first hole is formed. Forming the first hole may include: covering the photoresist layer on the light blocking layer; selectively exposing the photoresist layer to expose a portion of the photoresist corresponding to the exposed region of the first hole = by removing the photoresist layer Layer; and return to the photoresist layer. "θ ' _ exposed part of the photoresist fills the first hole and forms a second hole to adjust the layer on the photoresist layer; covers the photoresist; selectively exposes the photoresist layer to the first, transmission sheep The exposed part of the wide 2 resistive layer is revealed: the part of the material is shot: the part of the exposed part and the exposed part of the lower part of the light block are formed by the entire layer to be formed when the wavelength of the incident light is 3〇〇_500. The thickness. In addition, the transmittance adjustment layer; / becomes the phase of the incident light is changed by a maximum of 6 〇. The thickness. The entire layer and the light blocking layer may be formed of a material layer containing a metal having different side selectivity. According to still another aspect of the present invention, a blank mask is provided, comprising: a moon-permeable substrate, a transmittance adjusting layer, a light-blocking layer formed on the transparent substrate, formed on the transmittance adjusting layer; and a photoresist layer, Formed on the light barrier layer. The light blocking layer may include an anti-reflection film. The transmittance adjusting layer may have a thickness of 10 to 70% when the wavelength of the incident light is 300 to 500 nm. The transmittance adjustment layer may have a phase in which the incident light is most changed 60. The thickness. The transmittance adjusting layer and the light blocking layer may be formed of a material layer containing a metal having different etching selectivity. 11 1311685 21976pif According to the present invention, the uniform light transmittance of the transmittance adjusting portion of the photomask can be obtained. Therefore, the uniformity of the thickness of the photoresist layer remaining on the substrate can be obtained in the process of manufacturing the LCD. Therefore, the conventional problems caused by the unevenness of the thickness of the remaining photoresist layer can be solved. Thus, the reliability of the process for manufacturing an LCD can be improved. Furthermore, since the reticle according to the present invention does not include a finer than the power resolution limit of the exposure device in the transmittance adjusting portion

圖案,光罩也可輕易應用於需要具有大於丨公尺之尺寸的 大光罩之製造LCD的製程。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂,下文特舉較佳實施例,並配合所附圖式,作詳細說 明如下。在圖式中,層的厚度與區域被放大以清晰顯示。 【實施方式】 首先,根據本發明實施例之空白罩幕將被介紹。 參照圖2,空白罩幕包括一透明基板20,且更包括一 透射率調整層22、具有—抗反射膜的—光阻隔層%以及 -光阻層PR」’相繼地堆疊在透縣板2()上。透明基板 20可為-石英基板。透射率調整層22與光阻隔層μ之主 成分可相,。透射率調整層22可具有與光阻隔層%之間 極佳的附著性,且可為具有相較於絲隔層%之極佳鞋刻 材:層。例如透射率調整層22可為鋁⑽層或鋁 t Ϊ ’光阻隔層24可為絡⑼層或絡化合 =iL 4可由組成透射率調整層22之材料形成 或者不疋如itb。 透射率.周正層22之厚度可根據入射光之波長、相位或 12 I3H685pif 透射率而不同。例如當入射透射率調整層22之光的波長為 300至500奈米’透射率調整層22可具有入射光之透射率 變成10-70%之厚度。此外,透射率調整層22可具有穿透 透射率調整層22之光的相位最大地被改變60。之厚度。當 通過透射率調整層22時入射光之相位大於6〇。,因相位衝 突現象,光強度可能失真。考慮此因素,透射率調整層22The pattern, the reticle can also be easily applied to a process for manufacturing an LCD that requires a large reticle having a size larger than a metric meter. The above and other objects, features and advantages of the present invention will become more <RTIgt; In the drawings, the thickness and area of the layer are enlarged for clear display. [Embodiment] First, a blank mask according to an embodiment of the present invention will be described. Referring to FIG. 2, the blank mask includes a transparent substrate 20, and further includes a transmittance adjusting layer 22, a light blocking layer % having an anti-reflection film, and a photoresist layer PR"' successively stacked on the through plate 2 ()on. The transparent substrate 20 may be a quartz substrate. The transmittance adjusting layer 22 is compatible with the main component of the light blocking layer μ. The transmittance adjusting layer 22 may have excellent adhesion to the light barrier layer %, and may be an excellent shoe material: layer having a % compared to the silk spacer layer. For example, the transmittance adjusting layer 22 may be an aluminum (10) layer or an aluminum t Ϊ '. The light blocking layer 24 may be a network (9) layer or a complex compound = iL 4 may be formed of a material constituting the transmittance adjusting layer 22 or may be, for example, itb. Transmittance. The thickness of the positive layer 22 may vary depending on the wavelength, phase, or 12 I3H685pif transmittance of the incident light. For example, when the wavelength of light incident on the transmittance adjusting layer 22 is 300 to 500 nm, the transmittance adjusting layer 22 may have a thickness in which the transmittance of incident light becomes 10-70%. Further, the transmittance adjusting layer 22 may have a phase in which the light penetrating the transmittance adjusting layer 22 is most changed 60. The thickness. The phase of the incident light is greater than 6 当 when passing through the transmittance adjusting layer 22. The light intensity may be distorted due to phase conflict. Considering this factor, the transmittance adjustment layer 22

之厚度可為400 A或更少。光阻隔層24之厚度可接近6〇〇 至 1200 A。 根據本發明一實施例之光罩的製造方法將參考圖3至 9做介紹。圖2之空白罩幕是用於圖3至9所示之光 製造方法。 具體而言,參, —/圃j,主曝光(L1)使用雷射曝光設備 執行於空白罩幕之紐層PR1上。主曝光(L1)執行在光阻 ,PR1之預定區域,例如僅在對應於透明基板2〇之穿透 部的區域。在主曝光(1^)後,一個主顯影製程被執行。當 光阻層PR1在主曝光(L1)被曝光的區域於主顯影製程中二 移除時,胁曝光絲隔層24的—駭區域的—光阻層圖 案PR1A被形成於光阻隔層24上,如圖4。光阻隔層曰μ 暴露的區域使用光阻層圖案PR1A做為 $ 刻,接著形成在光阻隔層24暴露的區域下方之透 ,22也被則。此時,綱製程可為濕核乾式餘刻製 =當透料雜層22與雜隔層24之主成 刻製程可同時執行。然而,當透射率 之主成細, 13 1311685 pif 行主蚀刻並在設定絲隔層24之㈣條件後執行次钱刻 而執行。 在蝕刻製程被執行後,光阻層圖案PR1A被移除。以 此方式,如圖5,暴露透明基板2〇之穿透部Au的三第_ 孔Μ被形成在包括透射率調整層22與光阻隔層以 聂 層 S1。 ® 當第一孔hi被形成而在透明基板2〇定義穿透部 All ’用於後續次曝光的—對準標記可被形成於透明基板 20或透射率調整層22上。 接著,參照圖6,填充第一孔hl的一光阻層pR2 佈於光阻隔層24上。接著,次曝光(L2则雷射曝光設^ 而被執行於光阻層PR2的-預定區域上。次曝光(L2)僅被 執行於光卩且層PR2對應於㈣基板2G之透射率調 A22的預定區域。因此,在次曝光(L2)之後的一顯影製程 中只有光阻層PR2的預定區域被移除。 ,7為次曝光(L2)所執行之顯影製程的結果。 茶照圖7,一光阻層圖案pR2A被形成於光阻隔層Μ 二層:且層圖案PR2A露出穿透部Al 1之間的一部份光阻 接著,在顯影製程之後使用光阻層圖案PR2A做為蝕 刻罩幕而钱刻光阻隔層24暴露的區域。银刻製程被執射 到暴露透射率調整層22。 &gt;、、'圖8,經由餘刻製程,暴露一部份透射率調整屑 22的個孔h2(此後稱為第二孔)被形成在光阻隔層&amp;入 射於第二孔h2的光經由透射率調整層22而入射於透明基 板2〇。因此,經由第二孔h2入射透明基板2〇之光關於透 明基,20的透射率低於經由透射率調整層22形成於光路 上之第一孔hi入射之光的透射率。經由第二孔h2入射透 月基板20之光關於透明基板2〇的透射率根據光路上之透 射率調整層22的厚度而不同。因此,人射透明基板對 應於第一孔h2之預定區域A22的光之透射率不同於經由 第一孔hi入射透明基板2〇之光的透射率。因此,對應於 透月基板20之第二孔h2的區域A22被稱為透射率調整部。 接著,在第二孔h2形成後移除光阻層圖案pR2A。結 果,兀1成如圖9之光罩。光罩包括穿透部All。此外,光 罩具有透射率調整部A22,其頂面被具有均勻厚度之透射 率調整層22覆蓋。 圖10為圖9之光罩的平面形狀。圖3至9為光罩沿圖 10之線3-3’的剖面圖。 參照圖ίο’透射率調整部A22之面積大於穿透部An 之面積。 以下介紹根據本發明其他實施例之光罩的製造方法。 其中,圖3至9所使用之相同元件符號表示相同元件' 且 後續其他實施例也如此。 參照圖11,一光阻隔層24被形成於一透明基板2〇 上。一光阻層PR1被形成於光阻隔層24上。主曝光(ui) 使用雷射曝光設備而被選擇性地僅執行在光阻層pRi的一 預定區域。光阻層PR1被選擇性地主曝光(L11)的部份對應 15 I3116^pif 域透,基,20被做為-穿透部與—透射率調整部的一區 阻層ίΐι ί11)被執行後,—顯影製程被執行以移除光 12異:丄 光(L11)的部份。顯影製程的結果,如圖 被阻隔層24的一預定區域的—光阻層圖案刪 皮形成於光_層24上。光_層24暴露的區域使用光 所為,刻罩幕而被_。峨執行至 在侧後移除光阻層圖案卩⑽。 二U,如圖13,暴露透明基板2G的多個第一孔_ ft成在細隔層24。透明基板2〇的-穿透部A11被一 =白^孔此1暴露,且透明基板2〇的—透射率調整部 部份的第一孔池1暴露。當第一孔hhl以此原 ^ 於-人曝光之對準標記也可形成於透明基板20 上。 耆’參照圖14’用以填充第一孔hM的一透射率調 正層40被形成於光阻隔層24上。透射率調整層4〇可相同 於圖2之透射率調整層22。一光阻層pR2被塗佈於透射率 調整層40上。接著,次曝光(L22)被選擇性地使用一雷射 曝光設備而僅執行於光阻pR2的―預定區域。此時,次曝 光(L22)僅被執行於光阻層PR2對應透明基板2〇之穿透部 Α1= —預定11域。顯影製程在次曝光(L22)後被執行。在 顯影製程,次曝光(L22)的區域從絲層PR2被移除。結 果如圖15 ’、光阻層圖案pR2B被形成在透射率調整層 的預疋區域。光阻層圖案pR2B可被形成以覆蓋透明基 板20之透射率調整部A22。 1311685 21976pif 接著 .,φ 案PR2B做為烟罩幕祕刻透 制招調整層4G暴露的部分。侧製程可為濕式或乾式姓刻 製姓刻結果’如圖16,暴露透明基板2G之穿透部A11。 在钱刻製程之後,光阻層圖案pR2B被移除。以此方 式’如圖17 ’完成透射率調整部A22位於穿透部ai 間且被透射率調整層4〇覆蓋的一光罩。 以下介紹根據本發明其他實施例之光罩的製造方法。 麥照圖18,一光阻隔層24被形成於一透明基板2〇 上。一光阻層PR1被塗佈於光阻隔層24上。主曝 使用雷射曝光設備而被選擇性地錄行在光崎pR =區域。選擇性主曝光(L31)可被執行在光 板2G之-透射率調整部A22的—敢區域2 曝光(L31)後’ -顯影製程被執行於光阻層撕上。奸 如圖19 ’ 一光阻層圖案PRic被形成於光阻隔層= 土。光阻層圖案me暴露光阻隔層μ對應於透射率調整 =22的-預定區域。使用光阻層圖案卩咖做為儀刻罩 2韻刻光阻隔層24暴露的部分直到暴露透明基板2〇。 二^如圖20 ’暴露透明基板2G之透射率調整部A22的 ^-孔11被形成在光_層24。_製程可為濕式或 乾式敍刻製程。在第-孔hll形成於光阻隔層24後,在光 阻隔層24上移除光阻層圖案pRlc。圖21顯示 案PR1C被移除後的結果。當第一 &quot; #24,田私4娣&quot;甚丨 弟孔hU被形成在光阻隔 i 24上 對準標記也可被形成於光阻隔 17 13 Π 685 if 赤於圖22 ’填充第一孔hU的透射率調整層50被形 成於光阻隔層24上。透射率纟周敕爲 射率轉H層G可細㈣2之透 爲ςΛδα&quot;· θ 光阻層圖案PR2C被形成於透射率調整 阻層圖案酸覆蓋第一孔纽且暴露一部份 庵二調&quot;'層% °此時’透射率調整層5G暴露的部分對 應於透明基板20之穿透部Ail。The thickness can be 400 A or less. The thickness of the light blocking layer 24 can be as close as 6 至 to 1200 Å. A method of manufacturing a reticle according to an embodiment of the present invention will be described with reference to Figs. The blank mask of Fig. 2 is used for the light manufacturing method shown in Figs. Specifically, the reference, -/圃j, main exposure (L1) is performed on the blank layer PR1 of the blank mask using the laser exposure apparatus. The main exposure (L1) is performed in a predetermined region of the photoresist, PR1, for example, only in the region corresponding to the penetration portion of the transparent substrate 2A. After the main exposure (1^), a main development process is performed. When the photoresist layer PR1 is removed in the main exposure process in the region where the main exposure (L1) is exposed, the photoresist layer pattern PR1A of the - - region of the threat exposure wire spacer 24 is formed on the light barrier layer 24. , as shown in Figure 4. The exposed portion of the photo-intercept layer 曰μ is patterned using the photoresist layer pattern PR1A, and then formed under the exposed portion of the photo-barrier layer 24, 22 is also. At this time, the process can be wet-wet dry-type engraving = when the mastering process of the porous layer 22 and the spacer layer 24 can be simultaneously performed. However, when the main transmittance is fine, 13 1311685 pif is performed by main etching and is performed after setting the condition of the (four) condition of the silk spacer 24. After the etching process is performed, the photoresist layer pattern PR1A is removed. In this manner, as shown in Fig. 5, the third hole 暴露 hole exposing the penetration portion Au of the transparent substrate 2 is formed to include the transmittance adjustment layer 22 and the light barrier layer to the Ni layer S1. The alignment mark can be formed on the transparent substrate 20 or the transmittance adjusting layer 22 when the first hole hi is formed and the transparent portion 2' defines the penetrating portion All' for the subsequent exposure. Next, referring to FIG. 6, a photoresist layer pR2 filling the first holes hl is disposed on the light blocking layer 24. Next, the sub-exposure (L2 is performed on the predetermined area of the photoresist layer PR2. The sub-exposure (L2) is performed only on the pupil and the layer PR2 corresponds to the transmissivity of the (4) substrate 2G. The predetermined area is thus removed. Only a predetermined area of the photoresist layer PR2 is removed in a developing process after the sub-exposure (L2). 7 is the result of the development process performed by the sub-exposure (L2). A photoresist layer pattern pR2A is formed on the second layer of the light barrier layer: and the layer pattern PR2A exposes a portion of the photoresist between the penetration portions A1, and then the photoresist layer pattern PR2A is used as an etching after the development process. The mask is exposed to the exposed area of the light blocking layer 24. The silver engraving process is performed to expose the transmittance adjusting layer 22. &gt;, 'Fig. 8, through a residual process, exposing a portion of the transmittance adjusting chip 22 The holes h2 (hereinafter referred to as second holes) are formed in the light blocking layer & the light incident on the second hole h2 is incident on the transparent substrate 2 through the transmittance adjusting layer 22. Therefore, the light is incident through the second hole h2. The light of the substrate 2 is less than the transmittance of the transparent substrate, and the transmittance of the substrate 20 is lower than that of the transmittance adjusting layer 22 The transmittance of the light incident on the first hole hi on the road. The transmittance of the light incident on the moon-transparent substrate 20 through the second hole h2 with respect to the transparent substrate 2〇 differs depending on the thickness of the transmittance adjustment layer 22 on the optical path. The transmittance of light of the transparent substrate corresponding to the predetermined area A22 of the first hole h2 is different from the transmittance of light incident on the transparent substrate 2 via the first hole hi. Therefore, corresponding to the second hole h2 of the moon-permeable substrate 20. The area A22 is referred to as a transmittance adjusting portion. Next, the photoresist layer pattern pR2A is removed after the second hole h2 is formed. As a result, the 兀1 is formed into a reticle as shown in Fig. 9. The reticle includes the penetrating portion All. The cover has a transmittance adjusting portion A22 whose top surface is covered by a transmittance adjusting layer 22 having a uniform thickness. Fig. 10 is a plan view of the reticle of Fig. 9. Figs. 3 to 9 are lines 3-3 of the reticle along the line of Fig. 10. A cross-sectional view of '. The area of the transmittance adjusting portion A22 is larger than the area of the penetrating portion An. A method of manufacturing a photomask according to other embodiments of the present invention is described below. The same components used in Figs. 3 to 9 are described. Symbols denote the same elements' and subsequent embodiments are also Referring to Fig. 11, a light blocking layer 24 is formed on a transparent substrate 2A. A photoresist layer PR1 is formed on the light blocking layer 24. The main exposure (ui) is selectively performed using a laser exposure apparatus. It is only performed in a predetermined region of the photoresist layer pRi. The portion of the photoresist layer PR1 that is selectively exposed to the main (L11) corresponds to the 15 I3116^pif domain, and the base 20 is used as the - penetration portion and the transmittance adjustment. After the execution of a portion of the resist layer ίΐι ί11), the development process is performed to remove the portion of the light: the light (L11). As a result of the development process, a photoresist layer pattern is formed on the photo-layer 24 as shown in a predetermined region of the barrier layer 24. The area exposed by the light_layer 24 is made of light and is masked by the _.峨Execute to remove the photoresist layer pattern 卩(10) after the side. Two U, as shown in FIG. 13, exposes a plurality of first holes _ft of the transparent substrate 2G to the fine spacers 24. The through-hole portion A11 of the transparent substrate 2 is exposed by a = white hole, and the first hole cell 1 of the transmittance adjusting portion of the transparent substrate 2 is exposed. The first hole hhl may also be formed on the transparent substrate 20 by the alignment mark of the original exposure. A transmittance adjusting layer 40 for filling the first hole hM with reference to Fig. 14' is formed on the light blocking layer 24. The transmittance adjusting layer 4'' may be the same as the transmittance adjusting layer 22 of Fig. 2. A photoresist layer pR2 is coated on the transmittance adjusting layer 40. Next, the sub-exposure (L22) is selectively performed using only one laser exposure apparatus and only in the "predetermined area" of the photoresist pR2. At this time, the secondary exposure (L22) is performed only on the penetration portion of the photoresist layer PR2 corresponding to the transparent substrate 2, Α1 = - predetermined 11 domains. The development process is performed after the secondary exposure (L22). In the developing process, the area of the sub-exposure (L22) is removed from the wire layer PR2. As a result, as shown in Fig. 15', the photoresist layer pattern pR2B is formed in the pre-turn region of the transmittance adjusting layer. The photoresist layer pattern pR2B can be formed to cover the transmittance adjusting portion A22 of the transparent substrate 20. 1311685 21976pif Next, the φ case PR2B is used as the part of the hood of the hood. The side process may be a wet or dry type of surnamed result as shown in Fig. 16, exposing the penetration portion A11 of the transparent substrate 2G. After the process, the photoresist layer pattern pR2B is removed. In this manner, a reticle in which the transmittance adjusting portion A22 is located between the penetrating portions ai and covered by the transmittance adjusting layer 4 is completed as shown in Fig. 17'. A method of manufacturing a photomask according to other embodiments of the present invention will now be described. In Fig. 18, a light blocking layer 24 is formed on a transparent substrate 2''. A photoresist layer PR1 is coated on the light blocking layer 24. The main exposure is selectively recorded in the Kawasaki pR = area using a laser exposure device. The selective main exposure (L31) can be performed after the -2 area exposure (L31) of the transmittance adjusting portion A22 of the light plate 2G. - The developing process is performed on the photoresist layer tearing. Figure 19 ’ A photoresist layer pattern PRic is formed on the light barrier layer = soil. The photoresist layer pattern me exposes the light blocking layer μ corresponding to a predetermined region of transmittance adjustment = 22. The photoresist layer pattern is used as an illuminating mask 2 to expose the exposed portion of the light blocking layer 24 until the transparent substrate 2 is exposed. The hole 11 of the transmittance adjusting portion A22 exposing the transparent substrate 2G is formed in the light layer 24 as shown in Fig. 20'. The process can be either wet or dry. After the first hole h11 is formed in the light blocking layer 24, the photoresist layer pattern pRlc is removed on the light blocking layer 24. Figure 21 shows the result of the removal of PR1C. When the first &quot;#24,田私4娣&quot; 丨弟孔孔hU is formed on the light barrier i 24, the alignment mark can also be formed on the light barrier 17 13 Π 685 if the red is shown in Figure 22 'filled first The transmittance adjusting layer 50 of the hole hU is formed on the light blocking layer 24. Transmittance 纟 纟 敕 射 转 转 转 H H H H H H 四 四 四 四 四 四 α α α 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光&quot; 'Layer % ° At this time' The portion of the transmittance adjusting layer 5G exposed corresponds to the penetration portion Ail of the transparent substrate 20.

接著,使用光阻層圖案肥以為制罩幕而㈣透 、。调整層50暴露的區域直到暴露透明基板2〇。既然姓 刻製程是相繼地⑽透料調整層5G與光阻隔層%的製 程’餘刻製程可為單-或多道製程,如圖3,端視形成透 射率調整層5G與光阻隔層24的材料是否相同。此外,餘 刻製程可為濕式或乾式钱刻製程。 經由蝕刻製程,暴露透明基板20之穿透部All的一 第二孔h22被形成於包括光阻隔層24與透射率調整層刈 的一疊層S2上,如圖23。 曰Next, use the photoresist layer pattern fertilizer to make the mask (4) transparent. The exposed area of layer 50 is adjusted until the transparent substrate 2 is exposed. Since the process of the last name is successively (10) the process of the adjustment layer 5G and the photoresist layer % process can be a single- or multi-pass process, as shown in FIG. 3, the transmittance adjusting layer 5G and the light blocking layer 24 are formed end-to-end. Is the material the same? In addition, the residual process can be a wet or dry process. A second hole h22 exposing the penetration portion All of the transparent substrate 20 is formed on a stack S2 including the light blocking layer 24 and the transmittance adjusting layer 经由 via an etching process, as shown in FIG.曰

在蝕刻製程後,光阻層圖案PR2C被移除,藉此完成 透明基板20之穿透部A11被暴露且透明基板2〇之透射率 調整部A22被透射率調整層5〇覆蓋的一光罩,如圖24。 本發明已參考上述實施例而特別地顯示與敘述,而這 些實施例僅用於敘述說明而非用以限定本發明。例如,熟 悉該項技藝者可使用在半導體製程中的普通曝光裝置與一' 罩幕而定義一光阻層的一預定區域,以取代使用—雷射曝 光設備。此外’上述說明中未提及之材料可被用於—光阻 隔層或一透射率調整層而實施上述實施例。 18 1311685 2l976pif 材料ΐ外因rfr隔層與透射率調整層之間提供額外的 明之精神和範圍内,當可作“=與: 定者為i。發明之保護範圍當視後附之申請專利範圍所界 如上述,根據本發明之光罩包括不精細的圖案, 率;整解析度限制而言為可感的,且透射 2整部被具有均句厚度的透射率調整層覆蓋 ==本發明之光罩,可維持光罩之透射率調整部; 句句先透料。因此,在製造LCD的製辦可維持留在基 亡之光阻層的厚度的均勻性。因此,可解決習知因留下 、光阻層之厚度不均勻所造成的問題。結果,可改善製造 LCf或電聚顯示面板(plasma此㈣ρ_,pDp)的^程之 可靠度。 此外,既然根據本發明之光罩在透射率調整部沒包括 具有少於曝光裝置的功率解析度限制之功率解析度限制的 精細圖案,如習知灰階罩幕,則可輕易應用於需要尺寸大 於1公尺之大光罩的製造LCD的製程中。 【圖式簡單說明】 圖1A為習知灰階罩幕的平面圖。 圖1B繪示通過習知灰階罩幕之光強度的分佈。 圖2為根據本發明一實施例之空白罩幕的剖面圖。 圖3至9為使用圖2根據本發明一實施例之空白罩幕 的光罩的製造方法的剖面圖。 19 1311685 21976pif 9所示之光罩的製造方法所形成之 m 光罩的平面圖 圖11至17為根據本發明其他 法的剖面圖。 法的ZT。24為倾本發㈣他實關之鮮的製造方 【主要元件符號說明】After the etching process, the photoresist layer pattern PR2C is removed, thereby completing a mask in which the transmissive portion A11 of the transparent substrate 20 is exposed and the transmittance adjusting portion A22 of the transparent substrate 2 is covered by the transmittance adjusting layer 5? , as shown in Figure 24. The present invention has been particularly shown and described with reference to the embodiments of the invention. For example, those skilled in the art can use a conventional exposure apparatus in a semiconductor process and a 'mask' to define a predetermined area of a photoresist layer instead of using a laser exposure apparatus. Further, the material which is not mentioned in the above description can be applied to the light-shielding layer or a transmittance adjusting layer to carry out the above embodiment. 18 1311685 2l976pif The material is provided by the rfr barrier and the transmissivity adjustment layer to provide additional clarity and scope. When it can be used as "= and: the one is i. The scope of protection of the invention is attached to the patent application scope. As described above, the photomask according to the present invention includes a non-fine pattern, a rate; a whole resolution limit is sensible, and the entire transmission 2 is covered by a transmittance adjustment layer having a uniform thickness == the present invention The mask can maintain the transmittance adjustment portion of the mask; the sentence is firstly permeable. Therefore, the manufacturing of the LCD can maintain the uniformity of the thickness of the photoresist layer remaining in the base layer. Therefore, the conventional factor can be solved. Leaving the problem caused by the uneven thickness of the photoresist layer. As a result, the reliability of manufacturing the LCf or the electropolymerized display panel (plasma) can be improved. Further, since the photomask according to the present invention is The transmittance adjustment section does not include a fine pattern having a power resolution limit less than the power resolution limit of the exposure apparatus, such as a conventional gray scale mask, which can be easily applied to the manufacture of a large mask requiring a size larger than 1 meter. In the process of LCD. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a plan view of a conventional gray scale mask. Fig. 1B shows a distribution of light intensity by a conventional gray scale mask. Fig. 2 is a cross section of a blank mask according to an embodiment of the present invention. 3 to 9 are cross-sectional views showing a method of manufacturing a mask of a blank mask according to an embodiment of the present invention, which is a plan view of a mask of a mask formed by a method of manufacturing a mask shown in FIG. Figures 11 to 17 are cross-sectional views showing other methods according to the present invention. The ZT of the method is a manufacturing method of the original (the main component symbol description).

10 :精細圖案 12 .間隔寬度 W:線寬 Α1 :穿透部 Α2 :透射率調整部 PR1、PR2 :光阻層 2〇:透明基板 22 ' 40、50 :透射率調整層 24 :光阻隔層 U、Ln、L31 :主曝光 L2、L22、L32 :次曝光 PR1A、PR2A、PR1B、PR2B、PR1C、PR2C :光阻層 圖案 S卜S2 :疊層 All :穿透部 hi、hhl :第一孔 h2、h22 :第二孔 1311685 21976pif A22 :預定區域10 : Fine pattern 12 . Space width W: Line width Α 1 : Penetration portion Α 2 : Transmittance adjusting portion PR1 , PR2 : Photoresist layer 2 〇: Transparent substrate 22 ' 40, 50 : Transmittance adjusting layer 24 : Photo barrier layer U, Ln, L31: main exposure L2, L22, L32: secondary exposure PR1A, PR2A, PR1B, PR2B, PR1C, PR2C: photoresist layer pattern Sb S2: lamination All: penetration portion hi, hhl: first hole H2, h22: second hole 1311685 21976pif A22 : predetermined area

Claims (1)

1311685 21976pif 十、申請專利範圍: l一種光罩,包括: 透明基板; 透射率調整層,形成於所述透明基板上;以及 光阻隔層,形成於所述透射率調整層上, 其中暴路所述透明基板的第一孔形成在包括所述透射 率調整層與所述光阻隔層的疊層,且 暴露所述透射率調整層的第二孔形成在所述光阻隔 層。 广_ 2.如申請專利範圍第丨項所述之光罩,其中所述透射 率調整層為當入射光之波長為3〇〇_5〇〇奈米時具有透射率 為10-70%之厚度的材料層。 …3.如申請專利範圍第1項所述之光罩,其中所述透射 率凋整層為具有入射光之相位最大地被改變6〇。之厚度的 材料層。 4. 如申睛專利範圍第1項所述之光罩,其中所述透射 率調整層與所述光阻隔層為相同材料層。 5. —種光罩,包括: 透明基板; 光阻隔層,形成於所述透明基板上;以及 透射率調整層’形成於所述透明基板與所述光阻隔層 上, 其中暴露所述透明基板的多個第一孔在所述光阻隔 層,且 22 所述透射率調整層僅填充於一部份的所述第一孔。 6. 如申請專利範圍第5項所述之光罩,其中當入射光 之波長為300_500奈米時所述透射率調整層具有^射 j 0-70% 之厚度。 、 7. 如申請專利範圍第5項所述之光罩,其中所述透射 率調整層具有入射光之相位最大地被改變6〇。之厚度。 8. —種光罩的製造方法,包括: 子又 形成疊層,包括透射率調整層與光阻隔層,其相繼地 雉疊在透明基板上; 形成暴露所述透明基板的第一孔於所述疊層;以及 在所述光阻隔層離開所述第一孔處形成暴露所述透射 率調整層的第二孔。 9. 如申請專利範圍第8項所述之光罩的製造方法,其 中所述形成第一孔包括: 覆蓋光阻層於所述疊層; 選擇性地曝光所述光阻層對應於所述第一孔的區域; 藉由移除所述光阻層之所述曝光的區域而顯露一部份 所述疊層; 使用移除所述曝光的區域之所述光阻層做為蝕刻罩幕 而I虫刻所述顯露的部分所述疊層;以及 移除所述光阻層。 1〇·如申請專利範圍第8項所述之光罩的製造方法,其 中所述形成所述第二孔包括: 覆蓋光阻層’以填充所述疊層上的所述第一孔; 23 1311685 21976pif 選擇性地曝光所述光阻層對應於所述第二孔的區域; • 藉由移除所述光阻層之所述曝光的區域而顯露一部份 所述光阻隔層; .使用移除所述曝光的區域之所述光阻層做為蝕刻罩幕 .而蚀刻所述暴露的部分所述光阻隔層;以及 移除所述曝光的部分已移除的所述光阻層。 11. 如申請專利範圍第8項所述之光罩的製造方法,其 中所述透射率調整層形成為當入射光之波長為3〇〇_5〇〇奈 ’米時具有透射率為10_70%之厚度。 12. 如申請專利範圍第8項所述之光罩的製造方法,其 中所述透射率調整層形成為入射光之相位最大地被改變 60°之厚度。 13. 如申請專利範圍第9項所述之光罩的製造方法,其 中在所述形成所述第一孔時,對準標記與所述第一孔一起 形成於所述疊層上。 14_如申請專利範圍第8項所述之光罩的製造方法,其 • 中所述透射率調整層與所述光阻隔層是由含具有不同蝕刻 選擇性之金屬的材料層所形成。 15.—種光罩的製造方法,包括: 形成光阻隔層於透明基板上; 在所述光阻隔層形成暴露所述透明基板的i少兩個 孔;以及 填充透射率調整層於至少一個所述孔。 16·如申凊專利範圍第15項所述之光罩的製造方法, 24 21976pif 對準標記與所述孔一起形1311685 21976pif X. Patent application scope: l A photomask comprising: a transparent substrate; a transmittance adjusting layer formed on the transparent substrate; and a light blocking layer formed on the transmittance adjusting layer, wherein the roadway is A first hole of the transparent substrate is formed on a laminate including the transmittance adjusting layer and the light blocking layer, and a second hole exposing the transmittance adjusting layer is formed on the light blocking layer. 2. The reticle of claim 2, wherein the transmittance adjusting layer has a transmittance of 10-70% when the wavelength of the incident light is 3 〇〇 5 〇〇 nanometer. A layer of material of thickness. The reticle of claim 1, wherein the transmittance layer is changed by a maximum of 6 具有 with a phase of incident light. The thickness of the material layer. 4. The reticle of claim 1, wherein the transmittance adjusting layer and the light blocking layer are the same material layer. 5. A reticle comprising: a transparent substrate; a light blocking layer formed on the transparent substrate; and a transmittance adjusting layer 'on being formed on the transparent substrate and the light blocking layer, wherein the transparent substrate is exposed A plurality of first holes are in the light blocking layer, and 22 the transmittance adjusting layer is filled only in a portion of the first holes. 6. The reticle of claim 5, wherein the transmittance adjusting layer has a thickness of from 0 0 to 70% when the incident light has a wavelength of 300 to 500 nm. 7. The reticle of claim 5, wherein the transmittance adjusting layer has a phase of incident light that is maximally changed by 6 。. The thickness. 8. A method of fabricating a reticle, comprising: forming a laminate, comprising a transmittance adjusting layer and a light blocking layer, which are successively stacked on a transparent substrate; forming a first hole exposing the transparent substrate a laminate; and forming a second hole exposing the transmittance adjustment layer away from the first aperture at the light blocking layer. 9. The method of fabricating a reticle of claim 8, wherein the forming the first hole comprises: covering a photoresist layer on the laminate; selectively exposing the photoresist layer to correspond to a region of the first hole; exposing a portion of the stack by removing the exposed region of the photoresist layer; using the photoresist layer to remove the exposed region as an etch mask And I insect the exposed portion of the laminate; and remove the photoresist layer. The method of manufacturing the reticle of claim 8, wherein the forming the second hole comprises: covering the photoresist layer to fill the first hole on the laminate; 1311685 21976pif selectively exposing the photoresist layer to a region corresponding to the second hole; • revealing a portion of the photo-barrier layer by removing the exposed region of the photoresist layer; Removing the photoresist layer of the exposed region as an etch mask. etching the exposed portion of the light blocking layer; and removing the exposed portion of the exposed photoresist layer. 11. The method of manufacturing a reticle according to claim 8, wherein the transmittance adjusting layer is formed to have a transmittance of 10 to 70% when the wavelength of the incident light is 3 〇〇 5 〇〇 ' metre. The thickness. 12. The method of manufacturing a reticle according to claim 8, wherein the transmittance adjusting layer is formed to have a thickness at which the phase of the incident light is changed by a maximum of 60°. 13. The method of manufacturing a reticle according to claim 9, wherein the alignment mark is formed on the laminate together with the first hole when the first hole is formed. The method of manufacturing a reticle according to claim 8, wherein the transmittance adjusting layer and the light blocking layer are formed of a material layer containing a metal having different etching selectivity. 15. A method of fabricating a reticle, comprising: forming a light blocking layer on a transparent substrate; forming, in the light blocking layer, two holes that expose the transparent substrate; and filling a transmittance adjusting layer in at least one of Said hole. The method of manufacturing a reticle according to claim 15, wherein the 24 21976 pif alignment mark is formed together with the hole 1311685 其中在所述形成至少兩個孔時 成。 其中===:項所述之光罩的製造方法’ 覆蓋光阻層於所述光阻隔層上; 地曝光所述光阻層對應於所述孔的區域; 所述i阻隔ΓΓ4光阻層之所料糾區域而顯露一部份 钱刻所述顯露的部分所述絲隔層;以及 移除所述光阻層。 立中mi專·㈣15項所述之群的製造方法, 其中所述填充至少—個所述孔包括: ^成真充所述孔且覆盍所述光阻隔層的透射率調整層 於所述透明基板上; 覆蓋光阻層於所述透射率調整層上; 選擇性地曝光所述孔中所述被選擇且填充有所述透射 率調整層之孔周圍的所述光阻層; 藉由移除所述光阻層之所述曝光的部分而顯露所述被 選擇孔周圍的所述透射率調整層; 移除所述顯露的部分所述透射率調整層;以及 移除所述曝光的部分已移除的所述光阻層。 19.如申請專利範圍第15項所述之光罩的製造方法, 其中所述透射率調整層形成為當入射光之波長為 300-500 奈米時具有透射率為1〇_7〇%之厚度。 25 20.如申請專利範圍第15項所述之光罩的製造方法, 其中所述透射率調整層形成為入射光之相位最大地被改變 6〇。之厚度。 • 21.如申請專利範圍第15項所述之光罩的製造方法, . 其中所述透射率調整層與所述光阻隔層是由含具有不同蝕 • 刻選擇性之金屬的材料層所形成。 22. —種光罩的製造方法,包括: - 形成光阻隔層於透明基板上; 籲在所述光阻隔層形成暴露所述透明基板的第一孔; 填充透射率調整層於所述第一孔;以及 在所述光阻隔層離開所述第一孔處形成暴露所述透明 基板的第二孔。 23. 如申請專利範圍第22項所述之光罩的製造方法, 其中在所述形成所述第一孔時,對準標記與所述第一孔— 起形成。 24. 如申請專利範圍第22項所述之光罩的製造方法, • 其中所述形成所述第一孔包括: 覆蓋光阻層於所述光阻隔層上; f擇性地曝光所述光阻層對應於所述第-孔的區域; 所、,t :矛多除戶斤述光阻層之戶斤述曝光的區域而顯露—部份 丨地无阻隔層; 餘刻所述顯露的部分所述光阻隔層;以及 移除所述光阻層。 25. 如申請專利範圍第22項所述之光罩的製造方法, 26 1311685 21976pif 其情述填充所述第一孔與所述形成所述第 上;形成填充所述第-孔之透射率謂整層於所述】阻隔層 覆蓋光阻層於所述透射率調整層上; 所述光阻層對應於所述第二孔的區域; 精由移除所述光阻層之所述曝 所述透射率調整層; |刀向顯路部伤 相、,廬地移除所述透射率調 所述顯露的部分下方的所述光阻隔層;2路的^以及 移除所述光阻層。 26.如申料利_第22韻紅鮮 方法, 整層形成為當入射光之波長為3〇〇_50。 奈未時具有透射率為1Q_7G%之厚产。 利範圍第22項‘之光罩的製造方法, t之厚度 層形成為人射光之減最大地被改變 到選擇性之金屬的“層隔層是由含具有不同触 29. 一種空白罩幕,包括: 透明基板; =整^形成於所述透明基板上; 光阻芦:形j於所述透射率調整層上;以及 光阻層形成於所述光阻隔層上。 27 I311685if 30. 如申請專利範圍第22項所述之空白罩幕,其中所 述光阻隔層包括抗反射膜。 31. 如申請專利範圍第22項所述之空白罩幕,其中所 述透射率調整層具有當入射光之波長為300-500奈米時透 射率為10-70%之厚度。 32. 如申請專利範圍第22項所述之空白罩幕,其中所 述透射率調整層具有入射光之相位最大地被改變6〇。之1311685 wherein the formation is at least two holes. Wherein the method of manufacturing the reticle of the invention includes covering the photoresist layer on the photo-barrier layer; exposing the region of the photoresist layer corresponding to the hole; the i-blocking ΓΓ4 photoresist layer The portion of the material is exposed to reveal a portion of the exposed portion of the silk spacer; and the photoresist layer is removed. The manufacturing method of the group according to Item 15, wherein the filling at least one of the holes comprises: forming a transmittance adjusting layer covering the hole and covering the light blocking layer On the transparent substrate; covering the photoresist layer on the transmittance adjusting layer; selectively exposing the photoresist layer around the hole selected and filled with the transmittance adjusting layer in the hole; Removing the exposed portion of the photoresist layer to expose the transmittance adjustment layer around the selected hole; removing the exposed portion of the transmittance adjustment layer; and removing the exposed The photoresist layer that has been partially removed. 19. The method of manufacturing a reticle according to claim 15, wherein the transmittance adjusting layer is formed to have a transmittance of 1 〇 7 7 % when the wavelength of the incident light is 300 to 500 nm. thickness. The method of manufacturing a reticle according to claim 15, wherein the transmittance adjusting layer is formed such that a phase of the incident light is most changed by 6 。. The thickness. The method of manufacturing a reticle according to claim 15, wherein the transmittance adjusting layer and the light blocking layer are formed of a material layer containing a metal having different etching selectivity . 22. A method of fabricating a reticle, comprising: - forming a light blocking layer on a transparent substrate; forming a first hole exposing the transparent substrate in the light blocking layer; filling a transmittance adjusting layer on the first a hole; and forming a second hole exposing the transparent substrate at the first aperture in the light blocking layer. 23. The method of manufacturing a reticle according to claim 22, wherein an alignment mark is formed together with the first hole when the first hole is formed. 24. The method of fabricating a reticle according to claim 22, wherein the forming the first hole comprises: covering a photoresist layer on the light blocking layer; f selectively exposing the light The resist layer corresponds to the region of the first hole; and t: the spear is exposed except for the exposed area of the photoresist layer, and the portion is exposed without a barrier layer; a portion of the light blocking layer; and removing the photoresist layer. 25. The method of manufacturing a reticle according to claim 22, wherein the method of filling the first hole and the forming the first hole; forming a transmittance of filling the first hole is The entire layer of the barrier layer covers the photoresist layer on the transmittance adjusting layer; the photoresist layer corresponds to the region of the second hole; the exposure is removed by the photoresist layer Transmissivity adjustment layer; | knife-to-path phase damage phase, removing the transmittance to adjust the light-blocking layer under the exposed portion; 2-way and removing the photoresist layer . 26. For example, the whole layer is formed when the wavelength of incident light is 3〇〇_50. In the case of Naiwei, it has a high yield of 1Q_7G%. In the manufacturing method of the reticle of the 22nd item, the thickness layer of t is formed such that the reduction of the human light is maximally changed to the metal of the selective layer. The layer is composed of different touches. 29. A blank mask, The method includes: a transparent substrate; a surface formed on the transparent substrate; a photoresist: a shape j on the transmittance adjusting layer; and a photoresist layer formed on the light blocking layer. 27 I311685if 30. The blank mask of claim 22, wherein the light blocking layer comprises an anti-reflection film. The blank mask of claim 22, wherein the transmittance adjusting layer has an incident light. The present invention has a thickness of from 10 to 70% at a wavelength of from 300 to 500 nm. 32. The blank mask of claim 22, wherein the transmittance adjustment layer has a phase of incident light that is maximally Change 6〇. 度。 項所述之空白罩幕,其中所 層是由含具有不同钱刻選擇 33.如申請專利範圍第22 述透射率調整層與所述光阻隔 f生之金屬的材料層所形成。 28degree. The blank mask described in the section, wherein the layer is formed of a material layer having a different economical selection 33. The transmittance adjusting layer of the 22nd patent application and the metal of the photoresist. 28
TW095134935A 2005-10-20 2006-09-21 Photomask, method of manufacturing the same and blank mask used in the method TWI311685B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050099376A KR100635462B1 (en) 2005-10-20 2005-10-20 Photo-mask, method of manufacturing the same and blank mask used to the same method

Publications (2)

Publication Number Publication Date
TW200717177A TW200717177A (en) 2007-05-01
TWI311685B true TWI311685B (en) 2009-07-01

Family

ID=37626490

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095134935A TWI311685B (en) 2005-10-20 2006-09-21 Photomask, method of manufacturing the same and blank mask used in the method

Country Status (2)

Country Link
KR (1) KR100635462B1 (en)
TW (1) TWI311685B (en)

Also Published As

Publication number Publication date
TW200717177A (en) 2007-05-01
KR100635462B1 (en) 2006-10-18

Similar Documents

Publication Publication Date Title
JP4741103B2 (en) Substrate for liquid crystal display device and manufacturing method thereof
TWI285294B (en) Mask for photolithography, method of forming thin film, liquid crystal display device, and method of producing the liquid crystal display device
JP2005515497A (en) WIRING FOR DISPLAY DEVICE AND ITS MANUFACTURING METHOD, THIN FILM TRANSISTOR ARRAY SUBSTRATE INCLUDING THE WIRING, AND ITS MANUFACTURING METHOD
WO2014015631A1 (en) Array panel, manufacture method thereof and display device
TW462073B (en) Manufacturing method of semiconductor device
KR20020072533A (en) A photolithography mask having a subresolution alignment mark window
JP6985419B2 (en) Photomask structure and array substrate manufacturing method
KR20020073134A (en) A method of forming electrodes or pixel electrodes and a liquid crystal display device
TWI311685B (en) Photomask, method of manufacturing the same and blank mask used in the method
KR100701669B1 (en) Method for fabricating color filter substrate in liquid crystal display panel
US6630408B1 (en) Self alignment process to fabricate attenuated shifting mask with chrome border
KR101168406B1 (en) Half tone mask and method of manufacturig the same
TW571347B (en) Photo mask and semiconductor device manufacturing method
KR100787090B1 (en) a half tone mask having multi?half permeation part and a method for manufacturing thereof
JP3147863B2 (en) Manufacturing method of color filter
JP2006126243A (en) Exposure mask, microlens array and manufacturing method therefor
TWI332677B (en) Method and apparatus for manufacturing multiple circuit patterns using a multiple project mask
KR101168409B1 (en) Photo mask having multi half permeation part and Method for manufacturing thereof
KR100840315B1 (en) Color filter plate, method for fabricating the plate and liquid crystal display
KR101186890B1 (en) Half tone mask and method of manufacturig the same
CN101666971A (en) Mask and method for fabricating semiconductor device using the same
KR100390801B1 (en) Manufacturing method for half tone photo mask
KR20070101428A (en) Half tone mask and method for manufactureing thereof
KR100670043B1 (en) A manufacturing method of a thin film transistor panel for a liquid crystal display
KR101095539B1 (en) Half tone mask and method of manufacturig the same