FR2325150A1 - Perfectionnement de memoires optiques - Google Patents

Perfectionnement de memoires optiques

Info

Publication number
FR2325150A1
FR2325150A1 FR7528635A FR7528635A FR2325150A1 FR 2325150 A1 FR2325150 A1 FR 2325150A1 FR 7528635 A FR7528635 A FR 7528635A FR 7528635 A FR7528635 A FR 7528635A FR 2325150 A1 FR2325150 A1 FR 2325150A1
Authority
FR
France
Prior art keywords
substrate
compsn
layer
optical memory
cpd
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
FR7528635A
Other languages
English (en)
French (fr)
Other versions
FR2325150B1 (enExample
Inventor
Jean Cornet
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.)
Laboratoires dElectronique Philips SAS
Original Assignee
Laboratoires dElectronique et de Physique Appliquee
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 Laboratoires dElectronique et de Physique Appliquee filed Critical Laboratoires dElectronique et de Physique Appliquee
Priority to FR7528635A priority Critical patent/FR2325150A1/fr
Publication of FR2325150A1 publication Critical patent/FR2325150A1/fr
Application granted granted Critical
Publication of FR2325150B1 publication Critical patent/FR2325150B1/fr
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
    • G11B7/242—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
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/705—Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances, e.g. photodope systems
    • 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)

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
FR7528635A 1975-09-18 1975-09-18 Perfectionnement de memoires optiques Granted FR2325150A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7528635A FR2325150A1 (fr) 1975-09-18 1975-09-18 Perfectionnement de memoires optiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7528635A FR2325150A1 (fr) 1975-09-18 1975-09-18 Perfectionnement de memoires optiques

Publications (2)

Publication Number Publication Date
FR2325150A1 true FR2325150A1 (fr) 1977-04-15
FR2325150B1 FR2325150B1 (enExample) 1979-08-24

Family

ID=9160147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7528635A Granted FR2325150A1 (fr) 1975-09-18 1975-09-18 Perfectionnement de memoires optiques

Country Status (1)

Country Link
FR (1) FR2325150A1 (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201178A1 (de) * 1971-01-11 1972-08-03 Canon Kk Belichtungsmaterial und Verfahren zum Herstellen von Fotomasken

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201178A1 (de) * 1971-01-11 1972-08-03 Canon Kk Belichtungsmaterial und Verfahren zum Herstellen von Fotomasken

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVUE US: "IBM TECHNICAL DISCLOSURE BULLETIN" VOL. 14, NO. 10 MARS 1972 "PRODUCING MICROSCOPIC PATTERNS ON CHALCOGENIDE FILMS" D.AST ET AL, PAGES 3133-3134) *

Also Published As

Publication number Publication date
FR2325150B1 (enExample) 1979-08-24

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Legal Events

Date Code Title Description
ST Notification of lapse