Textured polyimide film
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United States of America Patent
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-
May 14, 1991
Issued Date -
N/A
app pub date -
Oct 22, 1987
filing date -
Feb 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
One or both surfaces of a polyimide sheet are uniformly and completely textured and can be 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 can be 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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Cited Art Landscape
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