Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame
Reexamination Certificate
2005-05-17
2005-05-17
Clark, S. V. (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Lead frame
C257S676000
Reexamination Certificate
active
06894371
ABSTRACT:
In a case of a semiconductor chip having an electrode pad to be wire-bonded to a header, securing of a fixing region is difficult since the spread of an Ag paste cannot be controlled, therefore, there has existed a problem such that stable manufacturing could not be carried out. Also, there existed a problem such that realization of stable manufacturing resulted in an excessively large external package form. A projection part is provided in a header, and a fixing region of a bonding wire is secured by arranging a chip at a position shifted in a direction to become distant from the projection part. An electrode pad to be connected to the header is arranged closer to the chip center than the other electrode pads of the identical chip side, and a wire is extended therefrom to the projection part or in the vicinity thereof so as to cross the chip and is fixed. Thereby, downsizing of the package and stable manufacturing are realized.
REFERENCES:
patent: 5479050 (1995-12-01), Pritchard et al.
patent: 5521431 (1996-05-01), Tahara
patent: 5859387 (1999-01-01), Gagnon
patent: 5977619 (1999-11-01), Uemura
patent: 6242801 (2001-06-01), Sano
patent: 6288441 (2001-09-01), Corisis
patent: 6531765 (2003-03-01), Kinsman
patent: 6627977 (2003-09-01), Foster
patent: 20010002723 (2001-06-01), Nishimura
patent: 20030127711 (2003-07-01), Kawai et al.
“Switch MMIC for Bluetooth” fromDenshi Zainyo; c. Nov. 2000.
“SANYO Technical Report” vol. 29, No. 1; c. Apr. 1997.
Aono Tsutomu
Asano Tetsuro
Hirai Toshikazu
Hirata Koichi
Isaki Osamu
Clark S. V.
Morrison & Foerster / LLP
Sanyo Electric Co,. Ltd.
LandOfFree
Semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3420769