WO2003044791A3 - Write-once optical data store, stamper for the production of said data store and method for the production of the stamper - Google Patents

Write-once optical data store, stamper for the production of said data store and method for the production of the stamper Download PDF

Info

Publication number
WO2003044791A3
WO2003044791A3 PCT/CH2002/000621 CH0200621W WO03044791A3 WO 2003044791 A3 WO2003044791 A3 WO 2003044791A3 CH 0200621 W CH0200621 W CH 0200621W WO 03044791 A3 WO03044791 A3 WO 03044791A3
Authority
WO
WIPO (PCT)
Prior art keywords
stamper
production
data store
memory region
layer
Prior art date
Application number
PCT/CH2002/000621
Other languages
German (de)
French (fr)
Other versions
WO2003044791A2 (en
Inventor
Atanas Zafirov
Stanko Palurovic
Volker Dobler
Original Assignee
Interaxia Ag
Atanas Zafirov
Stanko Palurovic
Volker Dobler
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 Interaxia Ag, Atanas Zafirov, Stanko Palurovic, Volker Dobler filed Critical Interaxia Ag
Priority to AU2002340701A priority Critical patent/AU2002340701A1/en
Publication of WO2003044791A2 publication Critical patent/WO2003044791A2/en
Publication of WO2003044791A3 publication Critical patent/WO2003044791A3/en

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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming

Abstract

The aim of the invention is for example the prevention of unauthorised copying of data on write-once optical data stores, comprising a plastic support (1) with a track structure defining a memory region, in particular on DVD-Rs, whereby data is already provided in a given section of the memory region by the producer. The above is achieved, whereby the tracks in the pre-defined region of the memory region are provided with an alternating track depth according to the given data. A stamper for production of the plastic support with the track structure is produced by means of laser illumination and development of a photoresist layer on a glass disc, coating the structured photoresist with metal and separation of the metal layer from the photoresist layer and the glass disc. Formation of the alternating track depths is achieved, whereby the intensity of the light used for the illumination is modulated such as to develop the tracks with alternating track depth. The resist layer is alternately completely removed or just partly removed. An additional resist layer is optionally applied beneath the resist layer, removed in the given region of the memory region and covered with an intermediate layer.
PCT/CH2002/000621 2001-11-20 2002-11-19 Write-once optical data store, stamper for the production of said data store and method for the production of the stamper WO2003044791A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002340701A AU2002340701A1 (en) 2001-11-20 2002-11-19 Write-once optical data store, stamper for the production of said data store and method for the production of the stamper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH21322001 2001-11-20
CH2132/01 2001-11-20

Publications (2)

Publication Number Publication Date
WO2003044791A2 WO2003044791A2 (en) 2003-05-30
WO2003044791A3 true WO2003044791A3 (en) 2003-08-21

Family

ID=4567632

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2002/000621 WO2003044791A2 (en) 2001-11-20 2002-11-19 Write-once optical data store, stamper for the production of said data store and method for the production of the stamper

Country Status (3)

Country Link
AU (1) AU2002340701A1 (en)
TW (1) TW200300930A (en)
WO (1) WO2003044791A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467716A2 (en) * 1990-07-19 1992-01-22 Fuji Photo Film Co., Ltd. Information recording medium and process for the preparation of the same
EP0762392A2 (en) * 1995-08-23 1997-03-12 Mitsui Toatsu Chemicals, Incorporated Optical recording media
EP1054399A1 (en) * 1999-05-20 2000-11-22 Pioneer Corporation Apparatus for manufacturing information record medium, information record medium, information recording apparatus and method
EP1081688A2 (en) * 1999-08-24 2001-03-07 Victor Company of Japan, Ltd. Information recording medium, and method and apparatus for recording and reproducing information

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467716A2 (en) * 1990-07-19 1992-01-22 Fuji Photo Film Co., Ltd. Information recording medium and process for the preparation of the same
EP0762392A2 (en) * 1995-08-23 1997-03-12 Mitsui Toatsu Chemicals, Incorporated Optical recording media
EP1054399A1 (en) * 1999-05-20 2000-11-22 Pioneer Corporation Apparatus for manufacturing information record medium, information record medium, information recording apparatus and method
EP1081688A2 (en) * 1999-08-24 2001-03-07 Victor Company of Japan, Ltd. Information recording medium, and method and apparatus for recording and reproducing information

Also Published As

Publication number Publication date
AU2002340701A8 (en) 2003-06-10
AU2002340701A1 (en) 2003-06-10
WO2003044791A2 (en) 2003-05-30
TW200300930A (en) 2003-06-16

Similar Documents

Publication Publication Date Title
US5608718A (en) Disk-shaped optical storage medium exhibiting an identification mark, and method of making such a storage medium
TW200627446A (en) Master substrate and method of manufacturing a high-density relief structure
DE60334621D1 (en) HIGH-OPTICAL OPTICAL DATA CARRIER AND RECORDING / PLAYBACK PROCESS THEREFOR
EP1100079A4 (en) Optical disk and method of manufacture thereof
TW200605064A (en) Write-once information recording medium and coloring matter material therefor
JP2001344826A (en) Disk having different depth of groove and pit, and manufacturing method for the same
EP1176587A3 (en) Optical recording medium, optical recording medium producing apparatus and optical recording medium producing method
AU2003258852A1 (en) Optical information storage medium
DE69626225D1 (en) METHOD FOR PRODUCING AN OPTICAL MASTER DISC
TW200715279A (en) Method of manufacturing optical disc, stamper, signal processing method, signal processing apparatus, image drawing method, optical disc recording apparatus, and optical recording medium
EP1324328A3 (en) Method for producing an optical information recording medium
PL2242050T3 (en) Optical recording medium
HK1048786B (en) Indelible watermark on optical discs
DE602004027907D1 (en) IMPROVED FORMAT FOR MULTILAYER OPTICAL DATA CARRIER
WO2003044791A3 (en) Write-once optical data store, stamper for the production of said data store and method for the production of the stamper
WO2003036641A1 (en) Optical disk recording method and optical disk reproducing method
WO2002015177A3 (en) Optical disc and information reproducing apparatus for same
TWI256629B (en) Optical recording/reproduction method and optical recording medium
DE602004032002D1 (en) Method for recording identification information, apparatus therefor and information recording medium
EP1204105A3 (en) Rewritable type optical disc, manufacturing method and manufacturing system therefor
DE60229038D1 (en) CDROM COPY PROTECTION
TW200511303A (en) Optical information recording medium and method of manufacturing thereof, manufacturing apparatus, recording/reproducing method, and recording/reproducing apparatus
KR20040098596A (en) Optical recording medium, master for optical recording medium manufacture, recording and reproducing apparatus, and recording and reproducing method
WO2003041064A1 (en) Optical recording/reproducing medium, stamper for manufacturing optical recording/reproducing medium, and optical recording/reproducing apparatus
AU2003282279A1 (en) Use of bi-layer photolithographic resists as new material for optical storage

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP