Invention Grant
US07782744B2 Systems and methods for forming a master disk utilizing variation in an applied signal power for forming uniform pits
有权
利用施加的信号功率的变化形成母盘的系统和方法,用于形成均匀的凹坑
- Patent Title: Systems and methods for forming a master disk utilizing variation in an applied signal power for forming uniform pits
- Patent Title (中): 利用施加的信号功率的变化形成母盘的系统和方法,用于形成均匀的凹坑
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Application No.: US12363491Application Date: 2009-01-30
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Publication No.: US07782744B2Publication Date: 2010-08-24
- Inventor: Sohmei Endoh , Noriyuki Saito , Takahiro Igari , Takeshi Gouko , Shinji Minegishi , Eijiro Kikuno
- Applicant: Sohmei Endoh , Noriyuki Saito , Takahiro Igari , Takeshi Gouko , Shinji Minegishi , Eijiro Kikuno
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Sony Corporation,Sony Disc & Digital Solutions, Inc.
- Current Assignee: Sony Corporation,Sony Disc & Digital Solutions, Inc.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Rockey, Depke & Lyons, LLC
- Agent Robert J. Depke
- Priority: JP2005-230408 20050809
- Main IPC: G11B7/24
- IPC: G11B7/24

Abstract:
A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).
Public/Granted literature
- US20090129255A1 RECORDING METHOD, MASTER FOR OPTICAL DISK, AND OPTICAL RECORDING MEDIUM Public/Granted day:2009-05-21
Information query
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