Copper-chromium-polyimide composite

Details Copper-chromium-polyimide composite Copper-chromium-polyimide composite

1988-06-20

1989-09-05

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having variation in thickness

428626, 428666, 428674, 428935, 428938, 204 384, B32B 1508

Patent

active

048638080

ABSTRACT:
A carrier for use in flexible circuits and tape-automated-bonding includes a layer of vacuum deposited metallic chromium between the copper and polyimide. The chromium is vacuum deposited on the polyimide, affords resistance to undercutting from gold and tin plating baths, and allows conductor to be deposited on both sides of the polyimide.

REFERENCES:
patent: 3360349 (1967-12-01), Adomines
patent: 3729814 (1973-05-01), Wright et al.
patent: 3781596 (1973-12-01), Galli
patent: 3981691 (1976-09-01), Cuneo
patent: 4101402 (1978-07-01), Vosson et al.
patent: 4193849 (1980-03-01), Sato
patent: 4231848 (1980-11-01), Kawasumi et al.
patent: 4395313 (1983-07-01), Lindsay et al.
patent: 4568413 (1986-02-01), Toth et al.
patent: 4585901 (1986-04-01), Miller

Affiliated with

Also associated with

Rating

Copper-chromium-polyimide composite does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Copper-chromium-polyimide composite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copper-chromium-polyimide composite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-242847