CA2087108A1 - Plaque de memoire optique et sa methode de fabrication - Google Patents

Plaque de memoire optique et sa methode de fabrication

Info

Publication number
CA2087108A1
CA2087108A1 CA2087108A CA2087108A CA2087108A1 CA 2087108 A1 CA2087108 A1 CA 2087108A1 CA 2087108 A CA2087108 A CA 2087108A CA 2087108 A CA2087108 A CA 2087108A CA 2087108 A1 CA2087108 A1 CA 2087108A1
Authority
CA
Canada
Prior art keywords
substrate
memory device
optical memory
master plate
manufacturing
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.)
Granted
Application number
CA2087108A
Other languages
English (en)
Other versions
CA2087108C (fr
Inventor
Junji Hirokane
Hiroyuki Katayama
Junichiro Nakayama
Michinobu Mieda
Kenji Ohta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Publication of CA2087108A1 publication Critical patent/CA2087108A1/fr
Application granted granted Critical
Publication of CA2087108C publication Critical patent/CA2087108C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24076—Cross sectional shape in the radial direction of a disc, e.g. asymmetrical cross sectional shape
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
CA002087108A 1992-01-21 1993-01-12 Plaque de memoire optique et sa methode de fabrication Expired - Fee Related CA2087108C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4-8501 1992-01-21
JP4008501A JPH05198016A (ja) 1992-01-21 1992-01-21 光メモリ素子用原盤及びその製造方法

Publications (2)

Publication Number Publication Date
CA2087108A1 true CA2087108A1 (fr) 1993-07-22
CA2087108C CA2087108C (fr) 1999-02-16

Family

ID=11694870

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002087108A Expired - Fee Related CA2087108C (fr) 1992-01-21 1993-01-12 Plaque de memoire optique et sa methode de fabrication

Country Status (6)

Country Link
US (1) US5347510A (fr)
EP (1) EP0552943B1 (fr)
JP (1) JPH05198016A (fr)
KR (1) KR100221745B1 (fr)
CA (1) CA2087108C (fr)
DE (1) DE69312748T2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2879185B2 (ja) * 1993-04-16 1999-04-05 ティーディーケイ株式会社 光磁気ディスク
TW540046B (en) * 1999-09-01 2003-07-01 Matsushita Electric Ind Co Ltd Optical disk stamper mastering method and apparatus
JP2001184726A (ja) * 1999-12-24 2001-07-06 Sony Corp 光記録媒体基板、光記録媒体、光記録媒体の製造方法および光記録再生方法
TWI291601B (en) 2000-08-01 2007-12-21 Taiwan Nano Electro Opt Tech Process for producing component with microstructure and finished product thereof
JP2002251793A (ja) * 2001-02-21 2002-09-06 Sony Corp 光記録媒体原盤の作製方法
JP4147753B2 (ja) * 2001-07-02 2008-09-10 ソニー株式会社 光情報記録媒体、光情報記録媒体用原盤およびその製造方法
DE60233511D1 (de) 2001-07-18 2009-10-08 Sony Corp Substrat für benutzung optischen aufzeichnungs-/wiedergabemediums, herstellungsverfahren für ein optisches aufzeichnungs-/wiedergabemedium, produktionsstempel und produktionsstempel für optisches aufzeichnungs-/wiedergabemedium
JP3859473B2 (ja) 2001-08-30 2006-12-20 シャープ株式会社 スタンパの製造方法
US6749997B2 (en) * 2002-05-14 2004-06-15 Sandia National Laboratories Method for providing an arbitrary three-dimensional microstructure in silicon using an anisotropic deep etch

Family Cites Families (16)

* Cited by examiner, † Cited by third party
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
US4544443A (en) * 1983-05-13 1985-10-01 Shap Kabushiki Kaisha Method for manufacturing an optical memory element
US4673602A (en) * 1984-06-13 1987-06-16 Sumitomo Bakelite Company Limited Composite substrate plate for magnetic or optical disk and process for production thereof
JPH0648546B2 (ja) * 1984-07-14 1994-06-22 日本ビクター株式会社 情報記録担体の製造法
FR2569034B1 (fr) * 1984-08-13 1990-08-10 Ricoh Kk Milieu d'enregistrement optique d'informations
JPS61160850A (ja) * 1985-01-08 1986-07-21 Matsushita Electric Ind Co Ltd 光デイスク
JPH0648548B2 (ja) * 1985-09-18 1994-06-22 シャープ株式会社 光メモリ素子の製造方法
JPH07105080B2 (ja) * 1985-09-27 1995-11-13 シャープ株式会社 光メモリ素子の製造方法
JPS63237234A (ja) * 1987-03-24 1988-10-03 Mitsubishi Electric Corp デイスク原盤
JPS63281239A (ja) * 1987-05-13 1988-11-17 Hitachi Ltd 情報記録原盤
JPS63288439A (ja) * 1987-05-20 1988-11-25 Mitsubishi Electric Corp 光デイスク用スタンパの製造方法
DE3719200A1 (de) * 1987-06-09 1988-12-29 Ibm Deutschland Optische speicherplatte und verfahren zu ihrer herstellung
JPH0832420B2 (ja) * 1987-12-28 1996-03-29 キヤノン株式会社 注型成形用型およびそれを使用した情報記録媒体用基板の製造方法
JPH01279437A (ja) * 1988-05-02 1989-11-09 Canon Inc 光ディスク製造用原盤、その製造方法、および光ディスク用成形体
US5147763A (en) * 1988-10-19 1992-09-15 Canon Kabushiki Kaisha Process for producing molding stamper for data recording medium substrate
JP2982328B2 (ja) * 1991-01-23 1999-11-22 ソニー株式会社 高密度光ディスクの作製方法

Also Published As

Publication number Publication date
DE69312748T2 (de) 1998-02-26
CA2087108C (fr) 1999-02-16
EP0552943A1 (fr) 1993-07-28
DE69312748D1 (de) 1997-09-11
EP0552943B1 (fr) 1997-08-06
JPH05198016A (ja) 1993-08-06
US5347510A (en) 1994-09-13
KR100221745B1 (ko) 1999-09-15

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Legal Events

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EEER Examination request
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