Semiconductor device manufacturing: process – Forming bipolar transistor by formation or alteration of...
Reexamination Certificate
2007-05-03
2008-09-09
Dang, Phuc T (Department: 2892)
Semiconductor device manufacturing: process
Forming bipolar transistor by formation or alteration of...
C438S508000, C438S335000, C438S327000, C438S370000, C438S372000, C257S565000, C257S557000, C257S558000, C257S273000
Reexamination Certificate
active
07422952
ABSTRACT:
A ballasting region is placed between the base region and the collector contact of a bipolar junction transistor to relocate a hot spot away from the collector contact of the transistor. Relocating the hot spot away from the collector contact prevents the collector contact from melting during an electrostatic discharge (ESD) pulse.
REFERENCES:
patent: 4622738 (1986-11-01), Gwozdz et al.
patent: 5541433 (1996-07-01), Lien
patent: 5565701 (1996-10-01), Zambrano
patent: 5874767 (1999-02-01), Terashima et al.
patent: 6737722 (2004-05-01), Yamamoto et al.
patent: 6770952 (2004-08-01), Babcock et al.
patent: 6815732 (2004-11-01), Vashchenko et al.
patent: 6815800 (2004-11-01), Mallikarjunaswamy
patent: 6919588 (2005-07-01), Vashchenko et al.
patent: 7064397 (2006-06-01), Vashchenko et al.
patent: 7126168 (2006-10-01), Vashchenko et al.
patent: 7145206 (2006-12-01), Mallikarjunaswamy
patent: 7217966 (2007-05-01), Vashchenko et al.
patent: 2002/0003285 (2002-01-01), Sasaki
Hopper Peter J.
Mirgorodski Yuri
Vashchenko Vladislav
Dang Phuc T
National Semiconductor Corporation
Pickering Mark C.
Tran Thanh Y
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