Method for making digital versatile discs

Details Method for making digital versatile discs Method for making digital versatile discs

1999-03-30

2000-12-26

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562755, 1562757, 156295, 156314, 156315, B32B 3112, B32B 3128

Patent

active

061652997

ABSTRACT:
A method for making a digital versatile disc (DVD) includes providing top and bottom substrates, each of the top and bottom substrates being disc-shaped and having a pitted surface. A reflective layer is formed over the pitted surface of the top substrate and a semireflective layer is formed over the pitted surface of the bottom substrate. A wetting promoter is applied over the reflective layer of the top substrate and, if desired, over the semireflective layer of the bottom substrate. The top and bottom substrates are bonded together with an adhesive material using a simple drop technique to form a DVD. The wetting promoter enhances wetting of the adhesive material on the bonded surfaces of the substrates.

REFERENCES:
patent: 5575882 (1996-11-01), Holz et al.
patent: 5982740 (1999-11-01), Schwartz
Patent Abstracts of Japan, Publication No. 01248335, Oct. 3, 1989.

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