JPH0477968B2 - - Google Patents

Info

Publication number
JPH0477968B2
JPH0477968B2 JP59019909A JP1990984A JPH0477968B2 JP H0477968 B2 JPH0477968 B2 JP H0477968B2 JP 59019909 A JP59019909 A JP 59019909A JP 1990984 A JP1990984 A JP 1990984A JP H0477968 B2 JPH0477968 B2 JP H0477968B2
Authority
JP
Japan
Prior art keywords
layer
reflectance
thickness
film
phase change
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
JP59019909A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60164937A (ja
Inventor
Masaharu Ishigaki
Kunikazu Oonishi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP59019909A priority Critical patent/JPS60164937A/ja
Publication of JPS60164937A publication Critical patent/JPS60164937A/ja
Publication of JPH0477968B2 publication Critical patent/JPH0477968B2/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
    • 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
    • G11B2007/25715—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 oxygen
    • 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
    • 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
    • G11B7/2533—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 resins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP59019909A 1984-02-08 1984-02-08 情報記録媒体 Granted JPS60164937A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59019909A JPS60164937A (ja) 1984-02-08 1984-02-08 情報記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59019909A JPS60164937A (ja) 1984-02-08 1984-02-08 情報記録媒体

Publications (2)

Publication Number Publication Date
JPS60164937A JPS60164937A (ja) 1985-08-28
JPH0477968B2 true JPH0477968B2 (enrdf_load_stackoverflow) 1992-12-09

Family

ID=12012338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59019909A Granted JPS60164937A (ja) 1984-02-08 1984-02-08 情報記録媒体

Country Status (1)

Country Link
JP (1) JPS60164937A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4653024A (en) * 1984-11-21 1987-03-24 Energy Conversion Devices, Inc. Data storage device including a phase changeable material
JPH0694230B2 (ja) * 1985-12-25 1994-11-24 旭化成工業株式会社 情報記録用材料
EP1040937A1 (en) * 1997-12-17 2000-10-04 Asahi Kasei Kogyo Kabushiki Kaisha Write once optical information recording medium
US6809401B2 (en) 2000-10-27 2004-10-26 Matsushita Electric Industrial Co., Ltd. Memory, writing apparatus, reading apparatus, writing method, and reading method
US6507061B1 (en) * 2001-08-31 2003-01-14 Intel Corporation Multiple layer phase-change memory

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837853A (ja) * 1981-08-01 1983-03-05 Ricoh Co Ltd 光学的情報記録媒体

Also Published As

Publication number Publication date
JPS60164937A (ja) 1985-08-28

Similar Documents

Publication Publication Date Title
CA1220552A (en) Information recording medium
EP0038499B1 (en) Optical recording and reproducing system
JPH0666093B2 (ja) 記録媒体
JPS60160036A (ja) 光デイスク
JPS61115252A (ja) 情報記録媒体
US4525412A (en) Information recording medium
JP2001023259A (ja) 光磁気記録媒体およびその製造方法
KR20050010809A (ko) 고융점의 기록층을 갖는 기록 매체 및 그 기록 매체의정보 기록 방법, 및 그 기록 매체로부터 정보를 재생하는정보 재생 장치 및 정보 재생 방법
JPH0477968B2 (enrdf_load_stackoverflow)
JP4221450B2 (ja) 高融点金属酸化物又はシリコン酸化物のマスク層を用いる超解像度近接場構造の高密度記録媒体
JPH0263262B2 (enrdf_load_stackoverflow)
JPH0373937B2 (enrdf_load_stackoverflow)
US5419937A (en) Optical record carrier
JPH0416355B2 (enrdf_load_stackoverflow)
JPS61110349A (ja) 情報記録媒体
JP3153393B2 (ja) 記録可能光ディスク
WO1982004159A1 (en) An information recording medium
JPH0114039B2 (enrdf_load_stackoverflow)
JPH0376237B2 (enrdf_load_stackoverflow)
JPH0562248A (ja) ２波長使用光デイスク媒体
JPH0462140B2 (enrdf_load_stackoverflow)
JPS6120237A (ja) 光学的情報記録媒体
JP2506868B2 (ja) 光ディスク
JPS5987634A (ja) 情報記録媒体
JPH0376238B2 (enrdf_load_stackoverflow)