Method of producing optical disks and apparatus used therefor

Details Method of producing optical disks and apparatus used therefor Method of producing optical disks and apparatus used therefor

1998-01-16

1999-12-21

Mayes, Curtis

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156286, 1563066, 156541, 156542, 156556, 156581, 369286, B32B 3104, G11B 726

Patent

active

060044209

ABSTRACT:
A method for producing optical disks each by bonding two disk substrates to each other through an adhesive sheet, which comprises the steps of: preparing a tape which includes a release tape, and a plurality of disk-like adhesive sheets arranged under a lower surface of the release tape at predetermined intervals; pressing the tape against an upper surface of a first disk substrate by an elastic material to thereby temporarily bond the first disk substrate to one of the adhesive sheets under the lower surface of the tape so as to form a temporarily bonded article; separating the release tape from the temporarily bonded article to expose the adhesive sheet; putting a second disk substrate on the exposed adhesive sheet and pressing the second disk substrate against the exposed adhesive sheet by the elastic material to thereby stick the second disk substrate to the temporarily bonded article so as to form a stuck article; and keeping the stuck article under a pressure or heat and pressure atmosphere to thereby bond the first and second disk substrates.

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patent: 5938891 (1999-08-01), Kashiwagi et al.
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