Method of manufacturing a stamper for information storage discs

Details Method of manufacturing a stamper for information storage discs Method of manufacturing a stamper for information storage discs

1982-08-20

1984-11-13

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264 13, 264 25, 264 25, 264130, 264226, 425810, B29D 1700

Patent

active

044825110

ABSTRACT:
A metal film is deposited on a photoresist layer having information-dependent pits, and a first film of low surface energy is deposited on the metal film to thereby provide a master for making a stamper blank. A layer of radiation curing resin is deposited on the first film of low surface energy, and then a transparent plate of acrylic resin is placed on the layer of radiation curing resin, which is hardened by exposure to radiation such as ultraviolet radiation through the transparent plate. The transparent plate and the hardened layer are separated as a unitary stamper blank from the master. A second film of low surface energy is then deposited on the stamper blank to form a stamper. The first and second films of low surface energy are made of polymerized octafluorobutane and serve to allow the stamper blank and information storage discs to be released clear of the master and stamper, respectively.

REFERENCES:
patent: 2464738 (1949-03-01), White et al.
patent: 3565978 (1971-02-01), Folger
patent: 3658954 (1972-04-01), Broadbent
patent: 3798134 (1974-03-01), Hynes
patent: 3891514 (1975-06-01), Klemm
patent: 4044939 (1977-08-01), Horst et al.
patent: 4116753 (1978-09-01), Tojyo et al.
patent: 4157931 (1979-06-01), Bricot et al.
patent: 4166088 (1979-08-01), Neefe
patent: 4198364 (1980-04-01), Laurie
patent: 4297312 (1981-10-01), Carroll
patent: 4307045 (1981-12-01), Imada
patent: 4368951 (1983-01-01), Blom

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