Metal coated laminate products made from textured polyimide film

Details Metal coated laminate products made from textured polyimide film Metal coated laminate products made from textured polyimide film

1987-02-24

1988-02-16

McCamish, Marion C.

Stock material or miscellaneous articles

Composite

Of metal

428671, 428675, 428678, 4284735, B32B 1508

Patent

active

047255048

ABSTRACT:
One or both surfaces of a uniformly and completely textured polyimide sheet are coated with a layer of electroless nickel or cobalt and a subsequent layer of electrolytically applied copper yielding an adhesiveless laminate useful in the production of electronic circuitry. The copper and nickel or cobalt layers are strongly bonded to the textured polyimide sheet to the extent that the laminate exceeds bond strength requirements as measured by current standard peel strength tests of the Institute for Interconnecting and Packaging Electronic Circuits (IPC) for both initial and post solder float adhesion.

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D. J. Levy and D. H. Ma, "Interfacial Bonding of Nickel to Polyamideimide", Plating and Surface Finishing, Jun. 1979, 68-71.
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