JPH0418377B2 - - Google Patents

Info

Publication number
JPH0418377B2
JPH0418377B2 JP60211660A JP21166085A JPH0418377B2 JP H0418377 B2 JPH0418377 B2 JP H0418377B2 JP 60211660 A JP60211660 A JP 60211660A JP 21166085 A JP21166085 A JP 21166085A JP H0418377 B2 JPH0418377 B2 JP H0418377B2
Authority
JP
Japan
Prior art keywords
film
optical memory
memory element
silicon nitride
recording medium
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 - Lifetime
Application number
JP60211660A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6271042A (ja
Inventor
Yoshiteru Murakami
Akira Takahashi
Yoshikazu Fujii
Hiroyuki Katayama
Kenji Oota
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
Priority to JP60211660A priority Critical patent/JPS6271042A/ja
Priority to CA000517495A priority patent/CA1264852A/en
Priority to US06/908,716 priority patent/US4792474A/en
Priority to EP86307305A priority patent/EP0216634B1/en
Priority to DE8686307305T priority patent/DE3669605D1/de
Publication of JPS6271042A publication Critical patent/JPS6271042A/ja
Publication of JPH0418377B2 publication Critical patent/JPH0418377B2/ja
Granted 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B7/2578—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24306—Metals or metalloids transition metal elements of groups 3-10
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25708—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 13 elements (B, Al, Ga)
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/2571—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 14 elements except carbon (Si, Ge, Sn, Pb)
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25713—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing nitrogen
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2531—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising glass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/146—Laser beam

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP60211660A 1985-09-24 1985-09-24 光メモリ素子 Granted JPS6271042A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP60211660A JPS6271042A (ja) 1985-09-24 1985-09-24 光メモリ素子
CA000517495A CA1264852A (en) 1985-09-24 1986-09-04 Optical memory element
US06/908,716 US4792474A (en) 1985-09-24 1986-09-18 Optical memory element
EP86307305A EP0216634B1 (en) 1985-09-24 1986-09-23 Optical memory element
DE8686307305T DE3669605D1 (de) 1985-09-24 1986-09-23 Optisches speicherelement.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60211660A JPS6271042A (ja) 1985-09-24 1985-09-24 光メモリ素子

Publications (2)

Publication Number Publication Date
JPS6271042A JPS6271042A (ja) 1987-04-01
JPH0418377B2 true JPH0418377B2 (en]) 1992-03-27

Family

ID=16609477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60211660A Granted JPS6271042A (ja) 1985-09-24 1985-09-24 光メモリ素子

Country Status (5)

Country Link
US (1) US4792474A (en])
EP (1) EP0216634B1 (en])
JP (1) JPS6271042A (en])
CA (1) CA1264852A (en])
DE (1) DE3669605D1 (en])

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233062B1 (en) * 1986-02-05 1992-04-22 Oki Electric Industry Company, Limited Magneto-optic memory medium
JP2579465B2 (ja) * 1986-06-10 1997-02-05 セイコーエプソン株式会社 光磁気記録媒体の製造方法
NL8702493A (nl) * 1986-10-31 1988-05-16 Seiko Epson Corp Optisch opnamemedium en werkwijze voor het vervaardigen daarvan.
JPS63311642A (ja) * 1987-06-12 1988-12-20 Sharp Corp 光メモリ素子
DE3802998A1 (de) * 1988-02-02 1989-08-10 Basf Ag Verfahren zur herstellung einer duennen roentgenamorphen aluminiumnitrid- oder aluminiumsiliciumnitridschicht auf einer oberflaeche
DE3803014A1 (de) * 1988-02-02 1989-08-10 Basf Ag Verfahren zur herstellung einer duennen roentgenamorphen aluminiumnitrid- oder aluminiumsiliciumnitrid-schicht auf einer oberflaeche
JPH0296952A (ja) * 1988-06-28 1990-04-09 Sharp Corp 光学記憶素子
JPH0264944A (ja) * 1988-08-30 1990-03-05 Mitsubishi Electric Corp 光磁気記録媒体
JPH02254648A (ja) * 1989-03-28 1990-10-15 Seiko Epson Corp 光磁気ディスク
JP2654689B2 (ja) * 1989-05-16 1997-09-17 富士写真フイルム株式会社 光磁気記録媒体
US5156909A (en) * 1989-11-28 1992-10-20 Battelle Memorial Institute Thick, low-stress films, and coated substrates formed therefrom, and methods for making same
US5514468A (en) * 1991-04-17 1996-05-07 Shin-Etsu Chemical Co., Ltd. Magneto-optical recording medium
CA2083865C (en) * 1991-12-04 1998-09-29 Masahiko Sekiya Substrate for optical recording medium and magneto-optical recording medium using same
US5587216A (en) * 1992-10-16 1996-12-24 Matsushita Electric Industrial Co., Ltd. Optical recording medium
EP0598377B1 (en) * 1992-11-17 1999-09-22 Mitsubishi Chemical Corporation Magneto-optical recording medium and optical information recording and reading-out method
US7613869B2 (en) * 2006-11-27 2009-11-03 Brigham Young University Long-term digital data storage
CN102484070B (zh) 2009-06-26 2014-12-10 康奈尔大学 用于铝-硅氮化物的化学气相沉积处理
CN102484067A (zh) 2009-06-26 2012-05-30 康奈尔大学 包括铝-硅氮化物钝化的用于形成iii-v半导体结构的方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437668A1 (fr) * 1978-09-29 1980-04-25 Thomson Csf Disque optique protege
DE3039821A1 (de) * 1980-10-22 1982-06-03 Robert Bosch Gmbh, 7000 Stuttgart Mehrschichtsystem fuer waermeschutzanwendung
JPS5933320B2 (ja) * 1981-04-03 1984-08-15 株式会社東芝 光学的情報記録媒体
IL63802A (en) * 1981-09-11 1984-10-31 Iscar Ltd Sintered hard metal products having a multi-layer wear-resistant coating
JPS599094A (ja) * 1982-07-09 1984-01-18 Asahi Chem Ind Co Ltd 情報記録用部材
US4510593A (en) * 1982-10-18 1985-04-09 Minnesota Mining And Manufacturing Company Information disk of grooved, metal-coated crosslinked polymeric layer
JPH0613238B2 (ja) * 1982-11-08 1994-02-23 株式会社リコー 光学的情報記録媒体
NL8301072A (nl) * 1983-03-28 1984-10-16 Philips Nv Optische registratieschijf.
JPS59227049A (ja) * 1983-06-07 1984-12-20 Fuji Photo Film Co Ltd 情報記録媒体
US4619865A (en) * 1984-07-02 1986-10-28 Energy Conversion Devices, Inc. Multilayer coating and method
US4777068A (en) * 1984-08-10 1988-10-11 Canon Kabushiki Kaisha Optical recording medium
JPS6231052A (ja) * 1985-04-25 1987-02-10 Seiko Epson Corp 光記録媒体

Also Published As

Publication number Publication date
US4792474A (en) 1988-12-20
CA1264852A (en) 1990-01-23
JPS6271042A (ja) 1987-04-01
EP0216634A1 (en) 1987-04-01
EP0216634B1 (en) 1990-03-14
DE3669605D1 (de) 1990-04-19

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term