Method of making circuit assembly with hardened direct bond lead

Metal working – Method of mechanical manufacture – Electrical device making

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

174 522, 174 524, 357 70, H01R 4300

Patent

active

047887656

ABSTRACT:
In an electric circuit assembly (2) having conductive lead frames (8-10) directly bonded to an insulating substrate (6) by a eutectic, the lead frames are further subjected to a work hardening step (32, 34) to stiffen the lead frames and enable push-on fastener connection (12) to the lead frames without collapse thereof.

REFERENCES:
patent: 3404319 (1968-10-01), Tsuji et al.
patent: 3537175 (1970-11-01), St. Clair et al.
patent: 3544857 (1970-12-01), Byrne et al.
patent: 3684464 (1972-08-01), Happ et al.
patent: 3744120 (1973-07-01), Burgess et al.
patent: 3766634 (1973-10-01), Babcock et al.
patent: 3768986 (1973-10-01), Ramos et al.
patent: 3854892 (1974-12-01), Burgess et al.
patent: 3911553 (1975-10-01), Burgess et al.
patent: 3958075 (1976-05-01), Kaufman
patent: 3993411 (1976-11-01), Babcock et al.
patent: 3994430 (1976-11-01), Cusano et al.
patent: 4129243 (1978-12-01), Cusano et al.
patent: 4156148 (1979-05-01), Kaufman
patent: 4196411 (1980-04-01), Kaufman
patent: 4215235 (1980-07-01), Kaufman
patent: 4218724 (1980-08-01), Kaufman
patent: 4250481 (1981-02-01), Kaufman
patent: 4266140 (1981-05-01), Kaufman
patent: 4394530 (1983-07-01), Kaufman
patent: 4449165 (1984-05-01), Kaufman
patent: 4449292 (1984-05-01), Kaufman
patent: 4488202 (1984-12-01), Kaufman
patent: 4498120 (1985-02-01), Kaufman
patent: 4546410 (1985-10-01), Kaufman
patent: 4546411 (1985-10-01), Kaufman
patent: 4554613 (1985-11-01), Kaufman
patent: 4574162 (1986-03-01), Kaufman
patent: 4577387 (1986-03-01), Kaufman
patent: 4630174 (1986-12-01), Kaufman
patent: 4700273 (1987-10-01), Kaufman
"Over 50 Years of Experience With the Direct Bond Copper Process", Tegmen Corp., 1201 East Fayette Street, Syracuse, N.Y.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of making circuit assembly with hardened direct bond lead does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making circuit assembly with hardened direct bond lead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making circuit assembly with hardened direct bond lead will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1487329

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.