JPH0268744A - Method for backing stamper - Google Patents
Method for backing stamperInfo
- Publication number
- JPH0268744A JPH0268744A JP22054788A JP22054788A JPH0268744A JP H0268744 A JPH0268744 A JP H0268744A JP 22054788 A JP22054788 A JP 22054788A JP 22054788 A JP22054788 A JP 22054788A JP H0268744 A JPH0268744 A JP H0268744A
- Authority
- JP
- Japan
- Prior art keywords
- stamper
- thermoplastic resin
- mirror block
- adhesive
- resin
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 claims abstract description 15
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 4
- 239000007924 injection Substances 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 9
- 229920005989 resin Polymers 0.000 abstract description 8
- 239000011347 resin Substances 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、光デイスク用溝付基板の製造に用いられる、
平滑性に優れたスタンパの裏打ち方法に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for manufacturing a grooved substrate for an optical disk.
The present invention relates to a method for lining a stamper with excellent smoothness.
紫外線硬化樹脂をスタンパ上に塗布し、その上に透明基
板を載せて押圧し樹脂を圧延せしめ、紫外線を照射して
樹脂を硬化させることによって基板に案内溝を転写する
、いわゆるＰ ＨＯＴ ＯＰＯＬＹＭＥＲ法（２Ｐ法）
は光デイスク用溝付基板の製造の一つとして知られてい
る。その工程の中で、スタンバ裏打ち技術は橿めて重要
であり、スタンパの平滑度、平行度の優劣により基板の
品質が決ってくる。その方法には真空チャッキング、＠
磁石チャッキング等がある。しかしこれらの方法は、ス
タンパが反っていたり、ねじれが生じている場合、又は
サイズの大きいスタンパ（φ２００ｍｍ以上）を用いる
場合などでは、スタンパの平滑度を全面積にわたって維
持することは困難であった。Using the so-called PHOT OPOLYMER method, an ultraviolet curable resin is applied onto a stamper, a transparent substrate is placed on top of the stamper, the resin is rolled, and guide grooves are transferred to the substrate by irradiating ultraviolet rays and curing the resin. 2P method)
is known as one of the manufactures of grooved substrates for optical disks. In this process, the stamper lining technology is extremely important, and the quality of the substrate is determined by the smoothness and parallelism of the stamper. Vacuum chucking, @
There are magnetic chucking, etc. However, with these methods, it is difficult to maintain the smoothness of the stamper over the entire area when the stamper is warped or twisted, or when a large stamper (diameter 200 mm or more) is used. .
他の方法としては、スタンパに剛性のあるバンキングプ
レートを接着剤を介して裏打ちする方法があるが、接着
剤を均一に塗布する技術が困難であり問題があった。Another method is to back the stamper with a rigid banking plate using an adhesive, but this poses a problem because the technique for uniformly applying the adhesive is difficult.
本発明は、溝付光デイスク基板の製造に←従来のこのよ
うな問題点に鑑み、溝形成のための母型となるスタンパ
を平滑性良く裏打ちし平滑性、平坦性のよい溝付基板を
得ることの出来るスタンパの裏打ち方法を提供すること
を目的としたものである。In view of these conventional problems in manufacturing grooved optical disk substrates, the present invention provides a grooved substrate with good smoothness and flatness by lining a stamper, which is a matrix for forming grooves, with good smoothness. The object of the present invention is to provide a method of lining a stamper that can be obtained.
（課題を解決するための手段〕
すなわち本発明は、着脱可能なミラーブロックバを外内
周リングで固定した成型金型に、熱可塑性樹脂を射出成
型する事によりミラーブロックとスタンパとを接着せし
めた後、固化した熱可塑性樹脂を剥離する事を特徴とし
たスタンパの裏打ち方法である。(Means for Solving the Problems) That is, the present invention adheres the mirror block and the stamper by injection molding a thermoplastic resin into a mold in which a removable mirror block bar is fixed with outer and inner rings. This method of lining a stamper is characterized by peeling off the solidified thermoplastic resin.
次に、本発明のスタンバ裏打ち方法を、図に従って説明
する。Next, the standby lining method of the present invention will be explained with reference to the drawings.
第１図は本発明の主な構成要素を示したものであり、着
脱可能でかつ外周および内周の接着剤溜め用溝（７）が
円周状に形成されたるミラーブロック（１）、情報記録
案内溝を形成させるための突条（３）が形成されたスタ
ンバ（２）、並びに、外周および内周押えリング（４，
５）から主として成っている。スタンバの母型面を外側
にして、接着剤（６）を塗布したミラーブロック（１）
上に載置し、外周および内周押えリング（４，５）を組
み付けて押えた状態で上型θ０）と下型（１１）の間に
挟持することにより、第２図に示したように、キャビテ
ィ（８）が形成される。Figure 1 shows the main components of the present invention, including a mirror block (1) that is detachable and has circumferential adhesive reservoir grooves (7) on the outer and inner peripheries; A stand bar (2) on which a protrusion (3) for forming a recording guide groove is formed, and outer and inner press rings (4,
5). Mirror block (1) with adhesive (6) applied, with the mother mold side of the stanbar facing outward.
As shown in Fig. 2, the mold is placed on top and held between the upper mold θ0) and the lower mold (11) while the outer and inner pressing rings (4, 5) are assembled and pressed. , a cavity (8) is formed.
次いで第３図に示したように、上型００）のスプルー（
９）より熱可塑性樹脂ａのをキャビティ（８）内に充填
することにより、樹脂の射出圧によって接着剤（６）が
完全に圧延され、また、充填された溶融樹脂の熱によっ
て接着剤（６）の層が硬化し、ミラーブロック（＋）と
スタンパ−（２）が強固に接着される。続いて型を開き
、冷却されて固化した熱可塑性樹脂（１２）を剥離して
とり除き、外周および内周押えリング（４，５）をはず
す事により、第４図に示したような、ミラーブロック（
１１で裏打ちされたスタンバが得られる。この工程にお
いて、射出圧を解放して熱可塑性樹脂をとり除くタイミ
ングは、接着剤（６）が硬化あるいは固化し、接着剤層
の硬化収縮、又は成型収縮等によってスタンバの平滑性
に支障をきたさな（なってから行う事が好ましい。Next, as shown in Fig. 3, the sprue (
9) By filling the cavity (8) with thermoplastic resin a, the adhesive (6) is completely rolled by the injection pressure of the resin, and the adhesive (6) is rolled by the heat of the filled molten resin. ) layer is cured, and the mirror block (+) and stamper (2) are firmly bonded. Next, the mold is opened, the cooled and solidified thermoplastic resin (12) is peeled off, and the outer and inner presser rings (4, 5) are removed to create a mirror as shown in Figure 4. block(
A standby lined with 11 is obtained. In this process, the injection pressure is released and the thermoplastic resin is removed at a time when the adhesive (6) is cured or solidified and the smoothness of the stand bar is not affected by curing shrinkage of the adhesive layer or molding shrinkage. (It is preferable to do this later.
本発明の方法で用いられる接着剤の好ましい例としては
、エポキシ、ウレタン、シリコーン等の熱硬化性樹脂接
着剤が挙げられるが、これに限定されるものではなく、
ホントメルト接着剤、感圧接着剤等も使用することが可
能であり、この場合は熱可塑性樹脂の充填後の冷却によ
り固化する。Preferred examples of adhesives used in the method of the present invention include, but are not limited to, thermosetting resin adhesives such as epoxy, urethane, and silicone.
It is also possible to use true melt adhesives, pressure sensitive adhesives, etc. In this case, the thermoplastic resin is solidified by cooling after filling.
接着剤は、圧締した時に異物等によりスタンパが微少変
形を生じない様充分に精製し、ミクロンオーダーの異物
を含まないようにする事が重要である。また、熱可塑性
樹脂は、成型時の収縮が小さく、平滑性の優れた材料で
あれば待に限定されない、好例としてはポリカーボネー
ト、ポリメチル、メタクルレート等を挙げることが出来
る。It is important that the adhesive is sufficiently refined so that the stamper does not become slightly deformed due to foreign matter when it is pressed, and that it does not contain foreign matter on the order of microns. Further, the thermoplastic resin is not limited to any material as long as it has a small shrinkage during molding and is excellent in smoothness. Examples of the thermoplastic resin include polycarbonate, polymethyl, methacrylate, and the like.
本発明方法に従うと、スタンバの母型面を全く変形、キ
ズ等を生ずる事がなく、均一にかつ高圧で圧締できるた
め、スタンバがミラーブロックに平滑性よく接着される
ので、このスタンパを用いて２Ｐ法を行えば品質の優れ
た光デイスク用溝付基板を得る事ができる。According to the method of the present invention, the stamper can be pressed uniformly and under high pressure without causing any deformation or scratches on the mother die surface of the stubber, and the stubber can be bonded to the mirror block with good smoothness. If the 2P method is carried out, it is possible to obtain a grooved substrate for an optical disk of excellent quality.
第１図は本発明の実施例における主な構成要素を示す図
、第２図は各要素を組立ててキャビティを形成した時の
金型の断面図、第３図はキャビティに熱可塑性樹脂を充
填した状態を示す図、第４図は本発明によって得られた
裏打ちスタンバを示す図である。Figure 1 is a diagram showing the main components in an embodiment of the present invention, Figure 2 is a cross-sectional view of the mold when each element is assembled to form a cavity, and Figure 3 is a cavity filled with thermoplastic resin. FIG. 4 is a diagram showing a backing stand bar obtained by the present invention.
Claims (1)
情報記録用案内溝を形成させるための突条が形成された
スタンパを母型面を外側にして載置し、スタンパを外内
周リングで固定した成型金型に、熱可塑性樹脂を射出成
型する事によりミラーブロックとスタンパとを接着せし
めた後、固化した熱可塑性樹脂を剥離する事を特徴とし
たスタンパの裏打ち方法。(1) Apply adhesive on the removable mirror block,
A stamper with protrusions for forming information recording guide grooves is placed with the mother mold surface facing outward, and thermoplastic resin is injection molded into a molding die in which the stamper is fixed with outer and inner rings. A stamper lining method characterized by peeling off the solidified thermoplastic resin after bonding the mirror block and the stamper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22054788A JPH0268744A (en) | 1988-09-05 | 1988-09-05 | Method for backing stamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22054788A JPH0268744A (en) | 1988-09-05 | 1988-09-05 | Method for backing stamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0268744A true JPH0268744A (en) | 1990-03-08 |
Family
ID=16752702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22054788A Pending JPH0268744A (en) | 1988-09-05 | 1988-09-05 | Method for backing stamper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0268744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004060632A1 (en) * | 2002-12-26 | 2004-07-22 | 3M Innovative Properties Company | Electroformed adhesive laminated tooling surface with precision structured interfaces |
-
1988
- 1988-09-05 JP JP22054788A patent/JPH0268744A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004060632A1 (en) * | 2002-12-26 | 2004-07-22 | 3M Innovative Properties Company | Electroformed adhesive laminated tooling surface with precision structured interfaces |
| US6939123B2 (en) | 2002-12-26 | 2005-09-06 | 3M Innovative Properties Company | Electroformed adhesive laminated tooling surface with precision structured interfaces |
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