JPH0640426B2 - Optical disc manufacturing method - Google Patents
Optical disc manufacturing methodInfo
- Publication number
- JPH0640426B2 JPH0640426B2 JP62248583A JP24858387A JPH0640426B2 JP H0640426 B2 JPH0640426 B2 JP H0640426B2 JP 62248583 A JP62248583 A JP 62248583A JP 24858387 A JP24858387 A JP 24858387A JP H0640426 B2 JPH0640426 B2 JP H0640426B2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive layer
- center hub
- substrate
- spacer member
- ultraviolet rays
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
- B29C65/1406—Ultraviolet [UV] radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
- B29C65/1435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. transmission welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
- B29C65/1448—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface radiating the edges of the parts to be joined, e.g. for curing a layer of adhesive placed between two flat parts to be joined, e.g. for making CDs or DVDs
- B29C65/1451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface radiating the edges of the parts to be joined, e.g. for curing a layer of adhesive placed between two flat parts to be joined, e.g. for making CDs or DVDs radiating the edges of holes or perforations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/4845—Radiation curing adhesives, e.g. UV light curing adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
- B29C65/487—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their shape, e.g. being fibres or being spherical
- B29C65/4875—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their shape, e.g. being fibres or being spherical being spherical, e.g. particles or powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
- B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
- B29C65/7826—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being non-integral with the parts to be joined, e.g. particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
- B29C66/452—Joining of substantially the whole surface of the articles the article having a disc form, e.g. making CDs or DVDs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
- B29C65/4885—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their composition being non-plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
- B29L2017/005—CD''s, DVD''s
Description
【発明の詳細な説明】 （イ）産業上の利用分野 この発明は、光学的に情報の記録・再生・消去等を行う
光ディスクおよびその製造方法に関する。TECHNICAL FIELD The present invention relates to an optical disc for optically recording / reproducing / erasing information and a method for manufacturing the same.
（ロ）従来の技術 この種の従来のディスクにおいては、第４図にその断面
を示すように、記録膜４を備えた２枚の円板状基板３に
互いに接着層５によって接着し、その中心部に位置決め
・回転用のセンターハブ１を接着層２によって基板３上
に接着して構成している。(B) Conventional Technique In a conventional disc of this type, as shown in the cross section of FIG. 4, two disc-shaped substrates 3 each having a recording film 4 are adhered to each other by an adhesive layer 5, and A center hub 1 for positioning and rotation is adhered to the center of the substrate 3 with an adhesive layer 2.
（ハ）発明が解決しようとする問題点 ところで、このようなディスクを駆動するディスクドラ
イブ装置は、センターハブ１によってディスクを支持す
ると共に位置決めを行い、ディスクを回転させると同時
にディスクの半径方向及び回転軸方向にピックアップを
追従させて記録膜４のトラックから情報部を検出する。
従って、第４図に示す層２の厚みムラによりセンターハ
ブ１の表面と基板３の表面との平行度が維持されずセン
ターハブ１の基板３に対する取付け精度が低下すると、
トラックに対するピックアップの追従が不能になるとい
う問題点が生じる。(C) Problems to be Solved by the Invention By the way, a disk drive device for driving such a disk supports and positions the disk by the center hub 1 and rotates the disk, and at the same time, in the radial direction and rotation of the disk. The information part is detected from the track of the recording film 4 by making the pickup follow the axial direction.
Therefore, if the parallelism between the surface of the center hub 1 and the surface of the substrate 3 is not maintained due to the uneven thickness of the layer 2 shown in FIG.
There is a problem that the pickup cannot follow the track.
この発明は、このような事情を考慮してなされたもの
で、基板とセンターハブとの接着層の厚さを一定に維持
し、センターハブの位置精度を向上させた光ディスクお
よびその製造方法を提供するものである。The present invention has been made in view of the above circumstances, and provides an optical disk in which the thickness of the adhesive layer between the substrate and the center hub is kept constant and the positional accuracy of the center hub is improved, and a manufacturing method thereof. To do.
（ニ）問題点を解決するための手段 この発明は、記録層を形成した基板２枚を記録層を対向
させて貼り合わせる工程と、貫通孔を有するセンターハ
ブを、スペーサ部材を混入した紫外線硬化型接着用樹脂
からなる接着層を介在させて前記基板上に設置する工程
と、前記センターハブを前記基板上に押圧して前記接着
層の厚みをスペーサ部材の大きさに一致させる工程と、
前記貫通孔を介して前記接着層を紫外線を照射してスペ
ーサ部材を含む接着層を硬化させる工程とからなること
を特徴とする光ディスクの製造方法を提供するものであ
る。(D) Means for Solving the Problems The present invention is directed to a step of bonding two recording layer-formed substrates so that the recording layers face each other, and a center hub having a through hole is cured by ultraviolet rays containing a spacer member. A step of placing on the substrate with an adhesive layer made of a resin for mold adhesion interposed, and a step of pressing the center hub on the substrate so that the thickness of the adhesive layer matches the size of the spacer member,
And a step of irradiating the adhesive layer with ultraviolet rays through the through hole to cure the adhesive layer including a spacer member.
なお、センターハブを基板上に押圧する工程において、
紫外線を透過する透明部材によってセンターハブを基板
上に押圧し、さらに、接着層を硬化させる工程におい
て、前記透明部材およびセンターハブの貫通孔を介して
接着層に紫外線を照射することが好ましい。In the process of pressing the center hub on the substrate,
In the step of pressing the center hub on the substrate with a transparent member that transmits ultraviolet rays and further curing the adhesive layer, it is preferable to irradiate the adhesive layer with ultraviolet rays through the through holes of the transparent member and the center hub.
（ホ）作 用 センターハブと基板間とを接着する接着層スペーサ部材
が含まれているので、センターハブと基板間の距離はス
ペーサ部材の大きさによって決定され一定に維持され
る。(E) Working Since the adhesive layer spacer member for bonding the center hub and the substrate is included, the distance between the center hub and the substrate is determined by the size of the spacer member and maintained constant.
（ヘ）実施例 以下、図面に示す実施例に基づいてこの発明を詳述す
る。これによって、この発明が限定されるものではな
い。(F) Embodiment Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. This does not limit the present invention.
第１図はこの発明の一実施例の部分断面を示す拡大図で
ある。同図において、１１は基板１３に対して接着層１
２によって接着されるセンターハブ、１４は接着層１２
に含有され直径ｄの粒径を有する球状のスペーサ部材で
ある。このような構成により、接着時に基板１３に対し
てセンターハブ１４が押圧されると、両者の間には厚さ
ｄの接着層１２が全面積にわたり一様に確保される。FIG. 1 is an enlarged view showing a partial cross section of an embodiment of the present invention. In the figure, 11 is an adhesive layer 1 for the substrate 13.
The center hub adhered by 2 and the adhesive layer 12
Which is a spherical spacer member having a diameter of d. With such a configuration, when the center hub 14 is pressed against the substrate 13 at the time of bonding, the adhesive layer 12 having the thickness d is evenly secured between them in the entire area.
次に、この光ディスクの製造方法を説明する。まず、溝
形状のトラックが形成された直径130mm、厚さ1.2mmの円
板状プラスチック基板の上に誘電体・磁性体・反射膜を
有する記録層をスパッタ法で形成する。この場合、プラ
スチック基板には、ポリカーボネートやアクリル又はガ
ラスが使用される。Next, a method of manufacturing this optical disc will be described. First, a recording layer having a dielectric material, a magnetic material, and a reflection film is formed by a sputtering method on a disk-shaped plastic substrate having a groove-shaped track and a diameter of 130 mm and a thickness of 1.2 mm. In this case, polycarbonate, acrylic, or glass is used for the plastic substrate.
次に、この基板２枚の各記録層表面に熱硬化性樹脂を塗
布した後、それらを貼り合わせてオーブン中で加熱し硬
化させる。この熱硬化性樹脂にはアクリル系樹脂、シリ
コーン系樹脂などが用いられる。Next, a thermosetting resin is applied to the surface of each of the recording layers of the two substrates, then they are bonded and heated in an oven to be cured. An acrylic resin, a silicone resin, or the like is used as the thermosetting resin.
次に、スペーサ部材として粒径5μｍのプラスチック粒
末を紫外線硬化性型の接着用樹脂に体積比で1/50程度含
有させ、接着用樹脂にスペーサ部材が一様に分布すると
共に接着用樹脂に気泡が無い状態に攪拌及び真空脱泡を
充分に行い、スペーサ部材入り接着剤を作成する。Next, as a spacer member, plastic particle powder having a particle size of 5 μm was included in the ultraviolet curable adhesive resin at a volume ratio of about 1/50, and the spacer member was evenly distributed in the adhesive resin and the adhesive resin was used. Stirring and vacuum defoaming are sufficiently performed in the absence of bubbles to prepare an adhesive containing a spacer member.
次に、第２図に示すように、上述のスペーサ部材入り接
着材をセンターハブ１１に一様に塗布し、塗布面を基板
１３の中心上に置く。そして、紫外線を透過する透明板
１５をセンターハブ１１の上に設置し、上部から圧力を
加えてスペーサ部材入り接着剤の接着層１２の厚みがス
ペーサ部材１４の１個分の大きさに一致するようにす
る。Next, as shown in FIG. 2, the adhesive containing the spacer member is uniformly applied to the center hub 11, and the applied surface is placed on the center of the substrate 13. Then, a transparent plate 15 that transmits ultraviolet rays is placed on the center hub 11, and pressure is applied from above to make the thickness of the adhesive layer 12 of the adhesive containing a spacer member equal to the size of one spacer member 14. To do so.
次に、紫外線１６を照射すると、センターハブ１１の外
周辺付近の樹脂１２ａと、センターハブ１１の回転ズレ
防止用ピン孔１７の下の樹脂１２ｂが硬化し、センター
ハブ１１と基板１３との位置決めが終了する。Next, when ultraviolet rays 16 are irradiated, the resin 12a near the outer periphery of the center hub 11 and the resin 12b under the rotation deviation preventing pin hole 17 of the center hub 11 are cured, and the center hub 11 and the substrate 13 are positioned. Ends.
次に、他方のセンターハブ（図示しない）についても上
述と同様にして決板に固着する。Next, the other center hub (not shown) is also fixed to the plate in the same manner as described above.
なお、スペーサ部材１４には、プラスチック粒子やガラ
ス粒子及び金属粒子等が使用されるが、その形状は第３
図ａ又は同図ｂに示すように球状又は円筒状であること
が好ましい。また、紫外線硬化型の接着用樹脂として
は、アクリル系樹脂やシリコーン系樹脂が用いられる。
このような工程により、この発明による光ディスクが製
造される。Plastic particles, glass particles, metal particles, and the like are used for the spacer member 14, and the shape thereof is the third.
It is preferably spherical or cylindrical as shown in FIG. An acrylic resin or a silicone resin is used as the ultraviolet curable adhesive resin.
Through such steps, the optical disc according to the present invention is manufactured.
（ト）発明の効果 この発明によれば、基板とセンターハブ間の接着層厚さ
がスペーサ部材により一定に維持されるため、センター
ハブが基板に高精度で固定されてディスクドライブ装置
による追従性が良好な、光ディスクの製造方法が提供さ
れる。つまり、貫通孔を介して接着層に紫外線を照射し
てスペーサ部材を含む接着層を硬化させることができる
ため、センターハブの周縁部のみから紫外線照射する場
合に比べて硬化処理の時間的な均一化がはかられ、接着
層に局部的な残留応力を生じさせず、確実で強力な接着
が可能となり、さらに、センターハブを基板上に押圧し
て接着層の厚みをスペーサ部材の大きさに一致させる押
圧工程において、透明板を用いてセンターハブを基板上
に押圧すれば、押圧用の透明板を貫通孔を介して接着層
に紫外線を照射できるため、センターハブの押圧工程と
接着層の硬化工程を一体化することができ、接着層は、
厚みが高精度に維持されて硬化される。(G) Effect of the Invention According to the present invention, since the thickness of the adhesive layer between the substrate and the center hub is kept constant by the spacer member, the center hub is fixed to the substrate with high accuracy and the followability by the disk drive device is improved. A method for manufacturing an optical disc having good optical characteristics is provided. That is, since the adhesive layer including the spacer member can be cured by irradiating the adhesive layer with ultraviolet rays through the through-holes, the curing process can be performed in a uniform time as compared with the case where the ultraviolet ray is irradiated only from the peripheral portion of the center hub. As a result, the adhesive layer does not generate local residual stress, and reliable and strong adhesion can be achieved.Furthermore, the center hub is pressed onto the substrate to reduce the thickness of the adhesive layer to the size of the spacer member. In the pressing step for matching, if the center hub is pressed onto the substrate using the transparent plate, the transparent plate for pressing can be irradiated with ultraviolet rays to the adhesive layer through the through-holes. The curing process can be integrated and the adhesive layer
The thickness is maintained with high precision and cured.
第１図はこの発明の一実施例の拡大構成図、第２図は第
１図に示す実施例の製造方法を示す説明図、第３図はこ
の発明のスペーサ部材の一例を示す斜視図、第４図は従
来のディスクを示す断面図である。 １１……センターハブ、 １２……接着層、１３……基板、 １４……スペーサ部材。FIG. 1 is an enlarged configuration diagram of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing a manufacturing method of the embodiment shown in FIG. 1, and FIG. 3 is a perspective view showing an example of a spacer member of the present invention. FIG. 4 is a sectional view showing a conventional disc. 11 ... Center hub, 12 ... Adhesive layer, 13 ... Substrate, 14 ... Spacer member.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤田 孝夫 大阪府大阪市阿倍野区長池町22番22号 シ ャープ株式会社内 (56)参考文献 特開 昭62−33334（ＪＰ，Ａ) 特開 昭54−73016（ＪＰ，Ａ) 特開 昭61−204842（ＪＰ，Ａ) 特開 昭63−292475（ＪＰ，Ａ) 特開 昭62−248183（ＪＰ，Ａ) 特開 昭60−182575（ＪＰ，Ａ) 実開 昭61−174076（ＪＰ，Ｕ) 特公 昭44−30067（ＪＰ，Ｂ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Fujita 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Within Sharp Corporation (56) References JP-A-62-33334 (JP, A) JP-A-54 -73016 (JP, A) JP 61-204842 (JP, A) JP 63-292475 (JP, A) JP 62-248183 (JP, A) JP 60-182575 (JP, A) ) Actual development Sho 61-174076 (JP, U) Japanese Patent Sho 44-30067 (JP, B1)
Claims (2)
させて貼り合わせる工程と、貫通孔を有するセンターハ
ブを、スペーサ部材を混入した紫外線硬化型接着用樹脂
からなる接着層を介在させて前記基板上に設置する工程
と、前記センターハブを前記基板上に押圧して前記接着
層の厚みをスペーサ部材の大きさに一致させる工程と、
前記貫通孔を介して前記接着層に紫外線を照射してスペ
ーサ部材を含む接着層を硬化させる工程とからなること
を特徴とする光ディスクの製造方法。1. A step of laminating two recording layers-formed substrates so that the recording layers are opposed to each other, and a center hub having a through hole is interposed by an adhesive layer made of an ultraviolet curable adhesive resin mixed with a spacer member. And placing on the substrate, and pressing the center hub on the substrate to match the thickness of the adhesive layer with the size of the spacer member,
And a step of irradiating the adhesive layer with ultraviolet rays through the through hole to cure the adhesive layer including a spacer member.
いて、紫外線を透過する透明部材によってセンターハブ
を基板上に押圧し、さらに、接着層を硬化させる工程に
おいて、前記透明部材およびセンターハブの貫通孔を介
して接着層に紫外線を照射することを特徴とする特許請
求の範囲第１項記載の光ディスクの製造方法。2. In the step of pressing the center hub onto the substrate, in the step of pressing the center hub onto the substrate with a transparent member that transmits ultraviolet rays and further curing the adhesive layer, the transparent member and the center hub are penetrated. The method for producing an optical disk according to claim 1, wherein the adhesive layer is irradiated with ultraviolet rays through the holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248583A JPH0640426B2 (en) | 1987-09-30 | 1987-09-30 | Optical disc manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248583A JPH0640426B2 (en) | 1987-09-30 | 1987-09-30 | Optical disc manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0191385A JPH0191385A (en) | 1989-04-11 |
| JPH0640426B2 true JPH0640426B2 (en) | 1994-05-25 |
Family
ID=17180284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62248583A Expired - Fee Related JPH0640426B2 (en) | 1987-09-30 | 1987-09-30 | Optical disc manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0640426B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6346962B1 (en) | 1998-02-27 | 2002-02-12 | International Business Machines Corporation | Control of video conferencing system with pointing device |
| JP4591677B2 (en) * | 2004-12-02 | 2010-12-01 | 株式会社ジェイテクト | Auto tensioner |
| JP4950101B2 (en) | 2008-03-05 | 2012-06-13 | 富士フイルム株式会社 | Method for processing a workpiece having a photoresist layer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5473016A (en) * | 1977-11-22 | 1979-06-12 | Fujitsu Ltd | Core gap forming method of magnetic head |
| JPS61204842A (en) * | 1985-03-07 | 1986-09-10 | Hitachi Maxell Ltd | Disc-shaped recording medium |
| JPS61174076U (en) * | 1985-04-15 | 1986-10-29 |
-
1987
- 1987-09-30 JP JP62248583A patent/JPH0640426B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0191385A (en) | 1989-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0408763A4 (en) | Optical disk and method of manufacturing the same | |
| JP2515757B2 (en) | Optical information recording disk manufacturing method | |
| JPH0640426B2 (en) | Optical disc manufacturing method | |
| JPH04370548A (en) | Production of base body for optical recording disk and device for executing this method | |
| JPH047022B2 (en) | ||
| JPS6396755A (en) | Manufacture of optical information recording disk | |
| JPS60263354A (en) | Production of information recording substrate | |
| JP2512710B2 (en) | Optical disc and its manufacturing method | |
| JP2941313B2 (en) | Optical disc manufacturing method | |
| JPH02156449A (en) | Production of magneto-optical disk medium | |
| JP2533182B2 (en) | Optical disc manufacturing method | |
| JP2632062B2 (en) | Optical disc manufacturing method | |
| JP2504117B2 (en) | Optical disc bonding method | |
| JPH01178149A (en) | Manufacture of optical disk | |
| JPS60258744A (en) | Air-enclosed optical disc and its manufacture | |
| JPS62164240A (en) | Production of information recording substrate | |
| JPH02308444A (en) | Production of optical recording medium | |
| JPH052782A (en) | Production of base body for optical recording disk and device for executing this process | |
| JPH0264978A (en) | Manufacture of information recording substrate | |
| JPH0568786B2 (en) | ||
| JPH02312024A (en) | Method for reinforcing back side of stamper for optical disk substrate, and production of optical disk substrate | |
| JPS621144A (en) | Optical disk and its manufacture | |
| JP2000322776A (en) | Production of optical recording medium and its apparatus | |
| JPS5940340A (en) | Production of information recording carrier | |
| JPH0262774A (en) | Adhering method for optical memory disk hub |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |