DE19612329A1 - Metal master production for CD manufacture - Google Patents
Metal master production for CD manufactureInfo
- Publication number
- DE19612329A1 DE19612329A1 DE1996112329 DE19612329A DE19612329A1 DE 19612329 A1 DE19612329 A1 DE 19612329A1 DE 1996112329 DE1996112329 DE 1996112329 DE 19612329 A DE19612329 A DE 19612329A DE 19612329 A1 DE19612329 A1 DE 19612329A1
- Authority
- DE
- Germany
- Prior art keywords
- metal
- metallization
- master
- layer
- producing
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung ei ner Masterabformung aus Metall als Stamper zum Einsetzen in eine Spritzgießform oder als Negativabformung (Vater) zur Erzeugung weiterer Positivabformungen (Mutter) zur Stampererzeugung für die Herstellung eines optisch lesba ren Informationsträgers, bei dem auf einer mit einem Pho toresist überzogenen, belichteten und mit einer dünnen Metallschicht auf dem Photoresist versehenen Master scheibe die Masterabformung erzeugt wird, indem auf die Metallisierung eine dickere Metallschicht aufgebracht und anschließend die Masterscheibe von der durch die Metalli sierung und Beschichtung erzeugten Masterabformung getrennt wird.The invention relates to a method for producing egg ner master impression made of metal as a stamper for insertion in an injection mold or as a negative impression (father) to generate further positive impressions (mother) for Stamper production for the production of an optically lesba ren information carrier, in which on a with a Pho toresist coated, exposed and with a thin Metal layer on the master provided with photoresist the master impression is produced by clicking on the Metallization applied a thicker layer of metal and then the master disc from the through the metalli mastering is separated.
Ein solches Verfahren wird derzeit insbesondere für die Herstellung von Compaktdisks angewandt und ist deshalb allgemein bekannt. Üblicherweise wurde die Metallisierung des Photoresist durch Aufdampfen einer dünnen Silber schicht erzeugt. Diese Silberschicht entfernte man von der anschließend galvanisch aufgebrachten Metallschicht zusammen mit an der Silberschicht anhaftendem Photoresist vor der Verwendung als Masterabformung zur Erzeugung von Positivabformungen oder als Stamper in der Spritzgießform durch Ätzen. Dieser Arbeitsgang des Reinigens ist aufwen dig und erfordert die Verwendung umweltschädlicher Stoffe.Such a procedure is currently used in particular for Manufacture of compact discs is applied and is therefore well known. Usually, the metallization of the photoresist by evaporating a thin silver layer created. This silver layer was removed from the subsequently electroplated metal layer together with photoresist adhering to the silver layer before use as a master impression for the production of Positive impressions or as a stamper in the injection mold by etching. This cleaning process is expensive dig and requires the use of environmentally harmful Fabrics.
Man hat auch schon daran gedacht, die Metallisierung durch eine dünne Nickelschicht auf dem Photoresist zu er zeugen. Das führt jedoch ebenfalls zu Problemen, weil Nickel in der Lage ist, durch eine Lewis-Säure/Base-Reak tion mit dem Photoresist chemische Komplexverbindungen einzugehen. Dadurch ist der anhaftende Photoresist wie derum nur schwierig zu entfernen. Weiterhin entstehen Un ebenheiten in der Oberfläche.Metallization has also been considered through a thin layer of nickel on the photoresist testify. However, this also leads to problems because Nickel is able to react through a Lewis acid / base tion with the photoresist chemical complex compounds enter into. As a result, the adhering photoresist is like therefore difficult to remove. Un continue to arise Flatness in the surface.
Der Erfindung liegt das Problem zugrunde, ein Verfahren der eingangs genannten Art zu entwickeln, welches mög lichst wenige Reinigungsvorgänge erfordert.The problem underlying the invention is a method of the type mentioned at the outset, which is possible requires as few cleaning processes.
Dieses Problem wird erfindungsgemäß dadurch gelöst, daß die Metallisierung zumindest zu anfangs durch reaktives Sputtern eines Metalls erfolgt.This problem is solved according to the invention in that the metallization at least initially through reactive A metal is sputtered.
Durch dieses reaktive Sputtern gelangt auf den Photore sist eine dünne Metallschicht, welche schon vor dem Kon takt mit dem Photoresist mit dem Reaktionsmittel eine Bindung eingegangen ist. Dadurch kann es nicht mehr zu Reaktionen zwischen dem Photoresist und der Metallschicht kommen, wodurch der Photoresist leicht von der Metall schicht zu entfernen ist. Das erfindungsgemäße Verfahren ermöglicht es, auf einer metallisierten Masterscheibe un mittelbar galvanisch einen Stamper oder eine Masterabfor mung (Vater) zu erzeugen, mit der anschließend weitere Positivabformungen (Mutter) hergestellt werden können, die dann jeweils wieder zur Erzeugung von Stampern die nen.This reactive sputtering gets onto the photore is a thin metal layer, which is already in front of the con clocks with the photoresist with the reactant Bond is received. This means it can no longer Reactions between the photoresist and the metal layer come, which makes the photoresist easily from the metal layer to be removed. The method according to the invention enables un on a metallized master disc indirectly galvanically a stamper or a master mung (father) to generate, with which then further Positive impressions (mother) can be made, which then again each time to produce stampers nen.
Die Metallisierung muß elektrisch leitfähig sein, damit nach der Metallisierung zur Bildung der Masterabformung galvanisch Material aufgetragen werden kann. Eine beson ders gute elektrische Leitfähigkeit bei gleichzeitiger Verhinderung einer Verbindung mit dem Photoresist er reicht man, wenn gemäß einer Weiterbildung der Erfindung die Metallisierung durch Erzeugen einer dünnen Grenz schicht aus beim Sputtern reagiertem Metall und einer ebenfalls durch Sputtern erzeugten Verstärkungsschicht aus nicht reagiertem Metall erfolgt.The metallization must be electrically conductive, so after metallization to form the master impression electroplated material can be applied. A special ders good electrical conductivity with simultaneous Preventing connection with the photoresist is sufficient if according to a further development of the invention the metallization by creating a thin border layer of metal reacted during sputtering and one reinforcement layer also produced by sputtering made of unreacted metal.
Besonders rationell ist das erfindungsgemäße Verfahren durchzuführen, wenn für die Grenzschicht und die Verstär kungsschicht dasselbe Target benutzt wird.The method according to the invention is particularly efficient to be carried out if for the boundary layer and the reinforcement the same target is used.
Eine andere, vorteilhafte Weiterbildung des Verfahrens besteht darin, daß vor der Metallisierung in einer Vaku umkammer, in welcher das Sputtern des Targets stattfin det, eine für die Reaktion des zur Bildung der Grenz schicht der Metallisierung nötigen Metalls ausreichende Menge Reaktionsmittel eingegeben wird. Bei dieser Vorge hensweise nimmt die Konzentration des Reaktionsmittels mit zunehmender Schichtstärke der Metallisierung ab. Da durch besteht die später galvanisch zu beschichtende Oberfläche aus reinem Metall, so daß sich eine gute elek trische Leitfähigkeit ergibt. Da der Anteil reagierten Metalls in der Metallisierung zum Photoresist hin gleich mäßig zunimmt, kann es nicht zu Ablösungserscheinungen innerhalb der Metallisierung kommen.Another advantageous development of the method is that before metallization in a vacuum chamber in which the sputtering of the target takes place det, one for the reaction of the to form the border layer of metallization necessary metal sufficient Amount of reactant is entered. With this example Significantly, the concentration of the reactant decreases with increasing layer thickness of the metallization. There through is the one that will later be electroplated Surface made of pure metal, so that a good elec trical conductivity results. Because the share responded Metal in the metallization to the photoresist the same increases moderately, there may be no signs of detachment come within the metallization.
Da das in der Galvanik aufgebrachte Material bei der heu tigen Herstellung von Stampern meist Nickel oder eine Nickel-Vanadium-Legierung ist, verwendet man vorteilhaf terweise als Metall für die Metallisierung Nickel oder eine Nickel-Vanadium-Legierung.Since the material applied in the electroplating at the hay manufacturing of stampers mostly nickel or a Nickel-vanadium alloy is used advantageously as a metal for nickel or metallization a nickel-vanadium alloy.
Besonders einfach und wirkungsvoll ist das erfindungsge mäße Verfahren durchzuführen, wenn als Reaktionsmittel Sauerstoff verwendet wird. Nickel und Nickellegierungen reagieren bei den beim Sputtern vorliegenden Bedingungen intensiv mit Sauerstoff, so daß zu Beginn der Metalli sierung ausschließlich vollständig oxidiertes Metall nie dergeschlagen wird und damit das Entstehen von Komplex verbindungen mit dem Photoresist ausgeschlossen ist. This is particularly simple and effective to carry out moderate procedures when as a reactant Oxygen is used. Nickel and nickel alloys react under the conditions present during sputtering intensive with oxygen, so that at the beginning of the Metalli only fully oxidized metal is struck and thus the emergence of complex connections with the photoresist is excluded.
Vergleichbar gute Ergebnisse lassen sich erzielen, wenn gemäß einer anderen Weiterbildung der Erfindung als Reak tionsmittel OH-Gruppen verwendet werden.Comparably good results can be achieved if according to another development of the invention as a reak agent OH groups are used.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996112329 DE19612329A1 (en) | 1996-03-28 | 1996-03-28 | Metal master production for CD manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996112329 DE19612329A1 (en) | 1996-03-28 | 1996-03-28 | Metal master production for CD manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19612329A1 true DE19612329A1 (en) | 1997-10-02 |
Family
ID=7789720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996112329 Withdrawn DE19612329A1 (en) | 1996-03-28 | 1996-03-28 | Metal master production for CD manufacture |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19612329A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999004393A2 (en) * | 1997-07-16 | 1999-01-28 | Toolex Alpha Ab | Semi-manufactured stamper and method of manufacturing the same |
EP1154421A2 (en) * | 2000-05-12 | 2001-11-14 | Pioneer Corporation | Production method for optical disc |
Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3017713A1 (en) * | 1980-05-08 | 1981-11-12 | Siemens AG, 1000 Berlin und 8000 München | Metallising polymer films - by sputtering adhesion promoting layer onto film and then vacuum depositing metal, used for resistance layers |
DE3337244A1 (en) * | 1982-10-14 | 1984-04-19 | N.V. Philips' Gloeilampenfabrieken, 5621 Eindhoven | METHOD FOR PRODUCING A NUT MASS |
US4482511A (en) * | 1981-08-21 | 1984-11-13 | Victor Company Of Japan, Ltd. | Method of manufacturing a stamper for information storage discs |
US4655876A (en) * | 1984-07-14 | 1987-04-07 | Victor Company Of Japan, Ltd. | Method for fabricating a master recording disc |
US4729940A (en) * | 1986-05-16 | 1988-03-08 | Cbs Inc. | Method of manufacturing master for optical information carrier |
JPS6365096A (en) * | 1986-09-04 | 1988-03-23 | Ricoh Co Ltd | Treatment of releasing film |
JPS6370941A (en) * | 1986-09-12 | 1988-03-31 | Toshiba Corp | Production of glass master disk for optical disk |
US4845000A (en) * | 1982-09-29 | 1989-07-04 | Tokyo Shibaura Denki Kabushiki Kaisha | Radiation sensitive carrier body utilized as stamper structure |
US4861699A (en) * | 1983-03-16 | 1989-08-29 | U.S. Philips Corporation | Method of making a master disk used in making optical readable information disks |
US4980262A (en) * | 1976-08-16 | 1990-12-25 | Eastman Kodak Company | Producing a replicate video disc by a method of photographic contact printing |
US5051340A (en) * | 1989-06-23 | 1991-09-24 | Eastman Kodak Company | Master for optical element replication |
US5147763A (en) * | 1988-10-19 | 1992-09-15 | Canon Kabushiki Kaisha | Process for producing molding stamper for data recording medium substrate |
DE4140712A1 (en) * | 1991-03-28 | 1992-10-01 | Pioneer Electronic Corp | Optical disc and prodn. esp. small scale prodn. of audio-visual disc - by laser exposure of photoresist contg. resin, light-sensitive cpd. and ballast cpd. |
EP0561079A1 (en) * | 1992-03-16 | 1993-09-22 | Pioneer Electronic Corporation | Photoresist for optical disc and method of preparing optical disc utilizing photoresist |
EP0561080A1 (en) * | 1992-03-16 | 1993-09-22 | Pioneer Electronic Corporation | Photoresist for optical disc and method of preparing optical disc utilizing photoresist |
DE3842227C2 (en) * | 1988-12-15 | 1993-10-14 | Westdeutscher Rundfunk | Process for the production of duplicate pieces of a master disc recorded with digital audio signals |
DE4310296A1 (en) * | 1993-03-30 | 1994-10-06 | Microparts Gmbh | Process for producing stepped mold inserts, stepped mold inserts and molded stepped microstructure bodies with high precision |
DE19516883A1 (en) * | 1994-05-13 | 1995-11-16 | Merck Patent Gmbh | Low pressure mould used to print printing inks |
US5480763A (en) * | 1991-01-11 | 1996-01-02 | Victor Company Of Japan, Ltd. | Method for manufacturing a stamper for high-density recording discs |
-
1996
- 1996-03-28 DE DE1996112329 patent/DE19612329A1/en not_active Withdrawn
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4980262A (en) * | 1976-08-16 | 1990-12-25 | Eastman Kodak Company | Producing a replicate video disc by a method of photographic contact printing |
DE3017713A1 (en) * | 1980-05-08 | 1981-11-12 | Siemens AG, 1000 Berlin und 8000 München | Metallising polymer films - by sputtering adhesion promoting layer onto film and then vacuum depositing metal, used for resistance layers |
US4482511A (en) * | 1981-08-21 | 1984-11-13 | Victor Company Of Japan, Ltd. | Method of manufacturing a stamper for information storage discs |
US4845000A (en) * | 1982-09-29 | 1989-07-04 | Tokyo Shibaura Denki Kabushiki Kaisha | Radiation sensitive carrier body utilized as stamper structure |
DE3337244A1 (en) * | 1982-10-14 | 1984-04-19 | N.V. Philips' Gloeilampenfabrieken, 5621 Eindhoven | METHOD FOR PRODUCING A NUT MASS |
US4861699A (en) * | 1983-03-16 | 1989-08-29 | U.S. Philips Corporation | Method of making a master disk used in making optical readable information disks |
US4655876A (en) * | 1984-07-14 | 1987-04-07 | Victor Company Of Japan, Ltd. | Method for fabricating a master recording disc |
US4729940A (en) * | 1986-05-16 | 1988-03-08 | Cbs Inc. | Method of manufacturing master for optical information carrier |
JPS6365096A (en) * | 1986-09-04 | 1988-03-23 | Ricoh Co Ltd | Treatment of releasing film |
JPS6370941A (en) * | 1986-09-12 | 1988-03-31 | Toshiba Corp | Production of glass master disk for optical disk |
US5147763A (en) * | 1988-10-19 | 1992-09-15 | Canon Kabushiki Kaisha | Process for producing molding stamper for data recording medium substrate |
DE3842227C2 (en) * | 1988-12-15 | 1993-10-14 | Westdeutscher Rundfunk | Process for the production of duplicate pieces of a master disc recorded with digital audio signals |
US5051340A (en) * | 1989-06-23 | 1991-09-24 | Eastman Kodak Company | Master for optical element replication |
US5480763A (en) * | 1991-01-11 | 1996-01-02 | Victor Company Of Japan, Ltd. | Method for manufacturing a stamper for high-density recording discs |
DE4140712A1 (en) * | 1991-03-28 | 1992-10-01 | Pioneer Electronic Corp | Optical disc and prodn. esp. small scale prodn. of audio-visual disc - by laser exposure of photoresist contg. resin, light-sensitive cpd. and ballast cpd. |
EP0561079A1 (en) * | 1992-03-16 | 1993-09-22 | Pioneer Electronic Corporation | Photoresist for optical disc and method of preparing optical disc utilizing photoresist |
EP0561080A1 (en) * | 1992-03-16 | 1993-09-22 | Pioneer Electronic Corporation | Photoresist for optical disc and method of preparing optical disc utilizing photoresist |
DE4310296A1 (en) * | 1993-03-30 | 1994-10-06 | Microparts Gmbh | Process for producing stepped mold inserts, stepped mold inserts and molded stepped microstructure bodies with high precision |
DE19516883A1 (en) * | 1994-05-13 | 1995-11-16 | Merck Patent Gmbh | Low pressure mould used to print printing inks |
Non-Patent Citations (1)
Title |
---|
NÖKER,F., KEYDEL,L.: Herstellen von Mikrostrukturkörpern aus Kunststoffen. In: Kunststoffe 82, 1992, 9, S.798-801 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999004393A2 (en) * | 1997-07-16 | 1999-01-28 | Toolex Alpha Ab | Semi-manufactured stamper and method of manufacturing the same |
WO1999004393A3 (en) * | 1997-07-16 | 1999-04-22 | Toolex Alpha Ab | Semi-manufactured stamper and method of manufacturing the same |
EP1154421A2 (en) * | 2000-05-12 | 2001-11-14 | Pioneer Corporation | Production method for optical disc |
EP1154421A3 (en) * | 2000-05-12 | 2006-06-07 | Pioneer Corporation | Production method for optical disc |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: UNAXIS DEUTSCHLAND HOLDING GMBH, 63450 HANAU, DE |
|
8139 | Disposal/non-payment of the annual fee |