Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device
Patent
1982-12-23
1987-02-24
Kittle, John E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making electrical device
430318, 430319, 204 15, G03C 500
Patent
active
046457321
ABSTRACT:
Method for forming circuit traces continuously between both sides of a printed circuit board on a substrate with a profiled surface utilizes flexible artwork mask which is wrapped around edge of substrate and transparent mask holders profiled to hold the mask flushly against the surfaces and edge of the substrate.
REFERENCES:
patent: 3159486 (1964-12-01), Henderson
patent: 3457638 (1969-07-01), Johnson
patent: 4054483 (1977-10-01), Peiffer
AMP Incorporated
Dees Jos,e G.
Faller F. Brice
Kittle John E.
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