Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame
Reexamination Certificate
2007-07-03
2007-07-03
Crane, Sara (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Lead frame
C257S676000, C257S685000, C257S690000, C257S735000, C257S777000, C257S669000, C257S576000
Reexamination Certificate
active
11005040
ABSTRACT:
A lead frame structure includes: at least a die pad for mounting a semiconductor chip thereon; a plurality of suspension members mechanically connected with the die pad; and a plurality of supporting members. Each supporting member has a connection region mechanically connected with each of the plurality of suspension members for mechanically supporting the at least die pad via the plurality of suspension pins. The connection region of the supporting member has a penetrating opening portion which provides a mechanical flexibility to the connection region and which allows the connection region to be deformed toward the suspension member upon application of a tensile stress to the suspension member in a down-set process.
REFERENCES:
patent: 4791472 (1988-12-01), Okikawa et al.
patent: 5250839 (1993-10-01), Katoh et al.
patent: 5394751 (1995-03-01), Ishibashi
patent: 5517056 (1996-05-01), Bigler et al.
patent: 5554885 (1996-09-01), Yamasaki et al.
patent: 5708293 (1998-01-01), Ochi et al.
patent: 5874773 (1999-02-01), Terada et al.
patent: 6020625 (2000-02-01), Qin et al.
patent: 6075283 (2000-06-01), Kinsman et al.
patent: 6081029 (2000-06-01), Yamaguchi
patent: 6339252 (2002-01-01), Niones et al.
patent: 5-267539 (1993-10-01), None
patent: 5-315499 (1993-12-01), None
Crane Sara
Im Junghwa
NEC Corporation
LandOfFree
Lead frame and semiconductor device having the same as well... 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 frame and semiconductor device having the same as well..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lead frame and semiconductor device having the same as well... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3757679