G - Physics – 03 – F
Patent
G - Physics
03
F
95/94.5
G03F 5/00 (2006.01) G03F 1/08 (2006.01) H05K 3/00 (2006.01)
Patent
CA 1308293
Abstract of the Disclosure A graphic artwork includes a thin film coating layer thereon which includes a cooper oxide which is substantially opaque to ultraviolet light and partially transmissive to visible light and suitable for printing circuiting on a printed circuit board or for other graphic artwork. In the case where the thin film compound includes unoxidized copper, etching thereof to achieve a predetermined pattern on the graphic artwork is facilitated by using a mixture of ammonium chloride and hydrogen peroxide.
558086
Czukor Janos
Kittler Wilfred C. Jr.
Stoddard Darrell
Andus Corporation
Czukor Janos
Kittler Wilfred C. Jr.
Marks & Clerk
Stoddard Darrell
LandOfFree
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