Lead frames having a chromium and zinc alloy coating

Details Lead frames having a chromium and zinc alloy coating Lead frames having a chromium and zinc alloy coating

1993-01-06

1994-08-30

James, Andrew J.

Active solid-state devices (e.g., transistors, solid-state diode

Lead frame

257741, 257750, 257766, 257762, 257761, 257781, 257787, 257707, H01L 2348, H01L 2944, H01L 2952, H01L 2962

Patent

active

053430735

ABSTRACT:
There is provided a lead frame with enhanced adhesion to a polymer resin. The lead frame is coated with a thin layer of containing a mixture of chromium and zinc. A mixture of chromium and zinc with the zinc-to-chromium ratio in excess of about 4:1 is most preferred. The coated lead frames exhibit improved adhesion to a polymeric resin.

REFERENCES:
patent: 3677828 (1972-07-01), Caule
patent: 3716427 (1973-02-01), Caule
patent: 3764400 (1973-10-01), Caule
patent: 3833433 (1974-09-01), Caule
patent: 4131517 (1978-12-01), Mitsuo et al.
patent: 4387006 (1983-06-01), Kajiwara et al.
patent: 4428987 (1984-01-01), Bell et al.
patent: 4497876 (1985-02-01), Kidon
patent: 4521469 (1985-06-01), Butt et al.
patent: 4647315 (1987-03-01), Parthasarathi et al.
patent: 4707724 (1987-11-01), Suzuki et al.
patent: 4818727 (1989-04-01), Turner
patent: 4862246 (1989-08-01), Masuda et al.
patent: 4888449 (1989-12-01), Crane et al.
patent: 4939316 (1990-07-01), Mahulikar et al.
patent: 5022968 (1991-06-01), Lin et al.
patent: 5060052 (1991-10-01), Casto et al.
patent: 5098796 (1992-03-01), Lin et al.
patent: 5119167 (1992-06-01), Turner
patent: 5221859 (1993-06-01), Kobayashi et al.

Affiliated with

Also associated with

Rating

Lead frames having a chromium and zinc alloy coating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lead frames having a chromium and zinc alloy coating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lead frames having a chromium and zinc alloy coating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-31393