Fishing – trapping – and vermin destroying
Patent
1996-12-17
1997-09-23
Picardat, Kevin
Fishing, trapping, and vermin destroying
437192, 437209, 437189, H01L 2144
Patent
active
056704186
ABSTRACT:
An outer coating of an electrically conductive material having low wetability with respect to solder is deposited over a gold coating previously deposited on an electrical contact element. After soldering the contact element to a substrate, the portion of the outer coating not covered by solder is removed from the contact element. The method of joining a contact element to a substrate in accordance with the present invention effectively solves the problem of solder climb to the critical contact area of the element without the need to provide masking or apply plating resist coatings to selected areas of the element.
REFERENCES:
patent: 2989578 (1961-06-01), Wagner et al.
patent: 4424527 (1984-01-01), Rao et al.
patent: 4600600 (1986-07-01), Pammer et al.
patent: 4940181 (1990-07-01), Juskey, Jr. et al.
patent: 4982267 (1991-01-01), Mones et al.
patent: 5400220 (1995-03-01), Swamy
patent: 5418471 (1995-05-01), Kardos
patent: 5446625 (1995-08-01), Urbish et al.
patent: 5468995 (1995-11-01), Higgins, III
patent: 5482736 (1996-01-01), Glenn et al.
patent: 5486494 (1996-01-01), Hotchkiss et al.
patent: 5519580 (1996-05-01), Natarajan et al.
patent: 5545589 (1996-08-01), Tomura et al.
Balconi-Lamica Michael J.
International Business Machines - Corporation
Picardat Kevin
LandOfFree
Method of joining an electrical contact element to a substrate 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 joining an electrical contact element to a substrate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of joining an electrical contact element to a substrate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1938494