Electrolysis: processes – compositions used therein – and methods – Electroforming or composition therefor – Sheet – web – wire – or filament
Reexamination Certificate
2006-11-07
2010-06-08
Ryan, Patrick (Department: 1795)
Electrolysis: processes, compositions used therein, and methods
Electroforming or composition therefor
Sheet, web, wire, or filament
C205S077000, C205S227000
Reexamination Certificate
active
07731831
ABSTRACT:
A composite material useful for the manufacture of a circuit has a support layer, a metal foil layer having opposing first and second sides and a thickness of 15 microns or less and a release layer effective to facilitate separation of the metal foil layer from the support layer, the release layer disposed between and contacting both the support layer and the metal foil layer. A reactive element containing layer, which may be the support layer, effective to react with gaseous elements or compounds to form thermally stable compounds contacts the release layer. The composite material is preferably subjected to a low temperature heat treatment. The combination of the low temperature heat treatment and the reactive element containing layer results in reduced defects including blisters in the copper foil during subsequent processing.
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Brenneman William L.
Chen Szuchain F.
GBC Metals, L.L.C.
Harness & Dickey & Pierce P.L.C.
Leader William T
Ryan Patrick
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