Production method and production apparatus of optical disc

Details Production method and production apparatus of optical disc Production method and production apparatus of optical disc

2006-12-27

2010-11-30

Del Sole, Joseph S (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Rotational molding

C264S001330, C264S002700, C425S402000, C425S810000, C118S052000

Reexamination Certificate

active

07842202

ABSTRACT:
In order to control a warp of a disc substrate so as to be a desired level, an optical disc production method includes: a step of supplying resin on the disc substrate; a step of mounting the disc substrate on an inside diameter portion of a turntable after supplying the resin; a step of providing an air-gap between an outside diameter portion of the turntable and a portion of the disc substrate that is not mounted; a step of extending the resin by spinning; and a curing step of curing the resin while spinning the disc substrate mounted on the inside diameter portion of the turntable, wherein in the step of extending the resin, a negative pressure is affected on a portion of the disc substrate that is not mounted, and in the curing step, the warp is controlled by curing the resin on the spinning disc substrate while maintaining effect of the negative pressure.

REFERENCES:
patent: 2003/0102582 (2003-06-01), Suzuki et al.
patent: 2004/0212116 (2004-10-01), Suzuki et al.
patent: 2005/0001343 (2005-01-01), Komaki et al.
patent: 2006/0198981 (2006-09-01), Murata et al.
patent: 2007/0006804 (2007-01-01), Kang et al.
patent: 04-322768 (1992-09-01), None
patent: 4-322768 (1992-11-01), None
patent: 9-147430 (1997-06-01), None
patent: 1997-161239 (1997-06-01), None
patent: 11-316982 (1999-09-01), None
patent: 11-316982 (1999-11-01), None
patent: 2001-256683 (2001-09-01), None
patent: 2002-251803 (2002-09-01), None
patent: 2002-260301 (2002-09-01), None
patent: 2002-319192 (2002-10-01), None
patent: 2003-99985 (2003-04-01), None
patent: 2004-280927 (2004-10-01), None
patent: 2005-056503 (2005-03-01), None
patent: 2005-141799 (2005-06-01), None
patent: 2005-174375 (2005-06-01), None
patent: EP1609537 (2005-06-01), None
patent: 2005-285280 (2005-10-01), None
International Search Report of PCT/JP2006/326103 dated Apr. 10, 2007.

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