KR890001037A - 정보의 기록 및 삭제 방법 - Google Patents

정보의 기록 및 삭제 방법 Download PDF

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Publication number
KR890001037A
KR890001037A KR1019880007048A KR880007048A KR890001037A KR 890001037 A KR890001037 A KR 890001037A KR 1019880007048 A KR1019880007048 A KR 1019880007048A KR 880007048 A KR880007048 A KR 880007048A KR 890001037 A KR890001037 A KR 890001037A
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KR
South Korea
Prior art keywords
recording layer
recording
information
laser beam
effective
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KR1019880007048A
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English (en)
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KR920002931B1 (ko
Inventor
이사오 모리모또
마사노부 사또오
이찌 모리고우
Original Assignee
에리마사요시
아사히가세이고오교 가부시끼가이샤
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Priority claimed from JP62144030A external-priority patent/JP2537875B2/ja
Priority claimed from JP62168775A external-priority patent/JP2726259B2/ja
Priority claimed from JP62328712A external-priority patent/JPH01171133A/ja
Application filed by 에리마사요시, 아사히가세이고오교 가부시끼가이샤 filed Critical 에리마사요시
Publication of KR890001037A publication Critical patent/KR890001037A/ko
Application granted granted Critical
Publication of KR920002931B1 publication Critical patent/KR920002931B1/ko

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    • 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
    • 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
    • G11B7/0055—Erasing
    • G11B7/00557—Erasing involving phase-change media
    • 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
    • G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or 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
    • G11B7/24—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
    • G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
    • 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
    • G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • 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)
    • 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

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

내용 없음

Description

정보의 기록 및 삭제방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 사용된 Sb-Te-Ge의 합성범위를 도시하는 3각 다이어그램,
제2도는 본 발명의 방법을 실현시키는 시스템을 도시하는 디이어그램도,
제3도는 정보를 기록 및 삭제하기 위한 레이저비임조사(laser beam irradiation)의 일형태의 파형을 나타내는 도면.

Claims (6)

  1. 정보를 기록 및 삭제하는 방법에 있어서, 이 방법이 Sb, Te, Ge와, Pb, Bi, In, Sn과 T1의 그룹으로부터 선택된 최소한 하나의 원소로 이루어지고, 기판상에 적충되는 기록층을 갖는 기판을 포함하는 기록매체를 단일레이저비임으로 조사하는 것을 포함하며, 한편 상기 단일 레이저비임에 대해서 상기 기록층을 이동시키고, 상기 기록층이 비결정상태와 결정상태 사이에서 기록층에 인가된 레이저비임 강도에 따라서 가역적으로 변환할 수 있으며, 이 가역적변환이 정보의 기록 및 삭제에 효과적이고, 상기 단일 레이저비임은 각각 상기 기록층을 결정화하고, 상기 기록층을 비결정화하기 위하여 2개의 상이한 강도로 인가되며, 반면에 소정의 정보에 상응한 레이저비임 강도 패턴에 따라서 상기 2개의 상이한 강도사이에 레이저비임을 변경시키고, 그럼으로써 기록층내에 상기 소정의 정보에 상응한 비결정영역과 결정영역을 형성하는 것을 특징으로 하는 정보의 기록 및 삭제방법.
  2. 제 1 항에 있어서, 상기 기록층의 결정화가 상기 기록층상에 정보를 기록하는데 효과적이고, 상기 기록층의 비결정화가 상기 기록층상에 기록된 정보를 삭제하는데 효과적인 것을 특징으로 하는 정보의 기록 및 삭제방법.
  3. 제 1 항에 있어서, 상기 기록층의 결정화가 상기 기록층상에 기록된 정보를 삭제하는데 효과적이고, 상기 기록층의 비결정화가 상기 기록층상에 정보를 기록하는데 효과적인 것을 특징으로 하는 정보의 기록 및 삭제방법.
  4. 제 1 항에 있어서, Sb, Te, Ge와, Pb, Bi, In, Sn과 Tl의 그룹으로부터 선택된 상기 원소가 다음의 공식 : (TexGeySb1-x-y)1-zMz[여기서 M은 Pb, Bi, In, Sn과 Tl의 그룹으로수터 선택된 초소한 하나의 원소, 그리고 0.3??x??0.7, 0.1??y, 0.01??z??0.3 및 x+y<1.]에 의하여 제시된 원자비로 상기 기록층상에 존재하는 것을특징으로 하는 정보의 기록 및 삭제방법.
  5. 제 3 항에 있어서, M이 Pb인 것을 특징으로 하는 정보의 기록 및 삭제방법.
  6. 제 3 항에 있어서, M이 Tl인 것을 특징으로 하는 정보의 기록 및 삭제방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880007048A 1987-06-11 1988-06-11 정보의 기록 및 삭제방법 KR920002931B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP62-144030 1987-06-11
JP62144030A JP2537875B2 (ja) 1987-06-11 1987-06-11 情報記録方法
JP62-168775 1987-07-08
JP62168775A JP2726259B2 (ja) 1987-07-08 1987-07-08 情報記録方法
JP62-328712 1987-12-25
JP62328712A JPH01171133A (ja) 1987-12-25 1987-12-25 情報記録方法

Publications (2)

Publication Number Publication Date
KR890001037A true KR890001037A (ko) 1989-03-18
KR920002931B1 KR920002931B1 (ko) 1992-04-10

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KR1019880007048A KR920002931B1 (ko) 1987-06-11 1988-06-11 정보의 기록 및 삭제방법

Country Status (5)

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US (1) US5221588A (ko)
EP (1) EP0294932B1 (ko)
KR (1) KR920002931B1 (ko)
AU (1) AU596011B2 (ko)
DE (1) DE3885156T2 (ko)

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Also Published As

Publication number Publication date
EP0294932B1 (en) 1993-10-27
EP0294932A3 (en) 1989-10-25
DE3885156D1 (de) 1993-12-02
AU596011B2 (en) 1990-04-12
US5221588A (en) 1993-06-22
AU1754188A (en) 1988-12-15
EP0294932A2 (en) 1988-12-14
DE3885156T2 (de) 1994-03-17
KR920002931B1 (ko) 1992-04-10

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