Coating processes – Immersion or partial immersion – Metal base
Patent
1993-08-24
1995-04-04
Beck, Shrive
Coating processes
Immersion or partial immersion
Metal base
427 8, 427 10, 427241, 427304, 427305, 427306, 427425, 427426, 4274431, C23C 2600
Patent
active
054036259
ABSTRACT:
The method serves for the electroless deposition of a metal layer (7) from a metallization liquid on a top side of a flat article to be metallized, more in particular a flat disc, for example, a master disc (1) which is used for the reproduction of optical discs. According to the method the top side of the article is first made hydrophilic, if so necessary, after which, with the article supported in a horizontal position, a quantity of metallization liquid is provided on the top side which was previously made hydrophilic as a stable liquid layer (16) bounded by the edges of the article, after which the deposition of the metal from the liquid on the article takes place and the liquid layer is the removed entirely from the surface.
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Baten Jacobus H.
de Boer Paulus G. J.
Legierse Petrus E. J.
Beck Shrive
Dang Vi Duong
Spain Norman N.
U.S. Philips & Du Pont Optical Company
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