Electronic device having external terminals with lead-free...

Details Electronic device having external terminals with lead-free... Electronic device having external terminals with lead-free...

2007-06-26

2007-06-26

Zimmerman, John J. (Department: 1775)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S646000, C428S648000, C428S926000, C428S929000, C257S779000

Reexamination Certificate

active

10735900

ABSTRACT:
A resin sealed IC has a plurality of external terminals. A metal thin film made of a Sn—Bi alloy is formed in direct contact with the surface of a base member of each external terminal. A Bi content in the Sn—Bi alloy layer is within a range of 0.5 to 6.0 wt %. Further, the Sn—Bi alloy layer has a single-layer plating structure, and the film thickness is within a range of 10 to 25 MIC.

REFERENCES:
patent: 4014660 (1977-03-01), Schreiner et al.
patent: 6110608 (2000-08-01), Tanimoto et al.
patent: 6195248 (2001-02-01), Kunishi et al.
patent: 6334570 (2002-01-01), Koshi et al.
patent: 6392293 (2002-05-01), Sugihara et al.
patent: 6395583 (2002-05-01), Kubara et al.
patent: 2002/0009610 (2002-01-01), Shimokawa et al.
patent: 2002/0019077 (2002-02-01), Shimokawa et al.
patent: 55-122842 (1980-09-01), None
patent: 11-251503 (1999-09-01), None
patent: 11-330340 (1999-11-01), None
patent: 2000-174191 (2000-06-01), None
patent: 2001-053211 (2001-02-01), None
patent: 2001-257303 (2001-09-01), None
patent: 2002-141456 (2002-05-01), None
patent: 2002-151838 (2002-05-01), None

Affiliated with

Also associated with

Rating

Electronic device having external terminals with lead-free... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic device having external terminals with lead-free..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic device having external terminals with lead-free... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3887691