Optical disk manufacturing method
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United States of America Patent
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-
Apr 25, 1995
Grant Date -
N/A
app pub date -
Jun 24, 1993
filing date -
Jun 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the optical disk manufacturing method a clamping plate is placed in the cavity of a disk body and the disk body is heated and compressed to connect the clamping plate to the disk body. Prior to connecting the clamping plate, a groove is established around the perimeter of the clamping plate. A disk body with or without a groove has its target surface compressed by a heat press while a region outside the target surface perimeter is pressed by an upper pressure surface to connect the clamping plate without creating a protrusion from the upper surface of the disk.
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