JPS6411257A - Phase transition type optical recording medium - Google Patents

Phase transition type optical recording medium

Info

Publication number
JPS6411257A
JPS6411257A JP62166508A JP16650887A JPS6411257A JP S6411257 A JPS6411257 A JP S6411257A JP 62166508 A JP62166508 A JP 62166508A JP 16650887 A JP16650887 A JP 16650887A JP S6411257 A JPS6411257 A JP S6411257A
Authority
JP
Japan
Prior art keywords
optical recording
recording layer
atomic number
number ratio
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.)
Pending
Application number
JP62166508A
Other languages
Japanese (ja)
Inventor
Yasuyuki Sugiyama
Norihiro Funakoshi
Susumu Fujimori
Reiichi Chiba
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP62166508A priority Critical patent/JPS6411257A/en
Publication of JPS6411257A publication Critical patent/JPS6411257A/en
Pending 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
    • G11B7/242—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
    • 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
    • G11B2007/2431—Metals or metalloids group 13 elements (B, Al, Ga, In)
    • 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
    • G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00454—Recording involving phase-change effects
    • 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
    • G11B7/257—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To maintain an initial crystal state and to increase a crystallization rate by forming an optical recording layer provided on a substrate of an alloy film consisting of In and Te and specifying the atomic number ratio of In and Te. CONSTITUTION:The optical recording layer 4 is provided via an underlying layer 3 on the substrate 2 and the optical recording layer 4 is formed of the alloy film consisting of In and Te. The atomic number ratio of In and Te is specified between 1:1 and 2:3. Since the atomic number ratio between 1:1 and 2:3 suffices in such a manner, the compsn. control at the time of formation is facilitated and the recording state is sufficiently stabilized at room temp. by using this alloy as the optical recording layer 4. The initial medium characteristic is thus maintained without being impaired even if writing and erasing are repeatedly executed; in addition, crystallization is executed by projection of a short period at the time of erasing by the projection of laser light.
JP62166508A 1987-07-03 1987-07-03 Phase transition type optical recording medium Pending JPS6411257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62166508A JPS6411257A (en) 1987-07-03 1987-07-03 Phase transition type optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62166508A JPS6411257A (en) 1987-07-03 1987-07-03 Phase transition type optical recording medium

Publications (1)

Publication Number Publication Date
JPS6411257A true JPS6411257A (en) 1989-01-13

Family

ID=15832645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62166508A Pending JPS6411257A (en) 1987-07-03 1987-07-03 Phase transition type optical recording medium

Country Status (1)

Country Link
JP (1) JPS6411257A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62278933A (en) * 1986-05-26 1987-12-03 レオン自動機株式会社 Cover skin cutter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131291A (en) * 1984-07-24 1986-02-13 Daicel Chem Ind Ltd Optical information-recording medium
JPS62143241A (en) * 1985-11-25 1987-06-26 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Optical type information recording method and optical type recording element used therefor
JPS62283431A (en) * 1986-05-31 1987-12-09 Toshiba Corp Optical recording medium
JPS6320738A (en) * 1986-07-11 1988-01-28 Fuji Electric Co Ltd Medium for optical recording
JPS63237990A (en) * 1987-03-27 1988-10-04 Toray Ind Inc Optical recording medium

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131291A (en) * 1984-07-24 1986-02-13 Daicel Chem Ind Ltd Optical information-recording medium
JPS62143241A (en) * 1985-11-25 1987-06-26 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Optical type information recording method and optical type recording element used therefor
JPS62283431A (en) * 1986-05-31 1987-12-09 Toshiba Corp Optical recording medium
JPS6320738A (en) * 1986-07-11 1988-01-28 Fuji Electric Co Ltd Medium for optical recording
JPS63237990A (en) * 1987-03-27 1988-10-04 Toray Ind Inc Optical recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62278933A (en) * 1986-05-26 1987-12-03 レオン自動機株式会社 Cover skin cutter

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