Optical device substrate film-formation apparatus, optical disk substrate film-formation method, substrate holder manufacture method, substrate holder, optical disk and a phase-change recording type of optical disk
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United States of America Patent
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-
Sep 25, 2007
Grant Date -
Dec 30, 2004
app pub date -
Jul 22, 2004
filing date -
Feb 9, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an optical disk substrate film-formation apparatus which prepared an optical disk by forming a thin film on a substrate, the optical disk substrate is held by a holder section. A contact support surface is provided to the holder section which closely contacts at least a portion of the surface of the optical disk substrate rear to the surface where the think film is formed.
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