Active solid-state devices (e.g. – transistors – solid-state diode – Regenerative type switching device – Combined with field effect transistor
Reexamination Certificate
2011-07-19
2011-07-19
Smith, Zandra (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Regenerative type switching device
Combined with field effect transistor
C257S117000, C257S128000, C257S427000, C257S658000, C257SE29338, C438S270000
Reexamination Certificate
active
07982240
ABSTRACT:
A main semiconductor region grown on a substrate has formed on its surface a pair of main electrodes spaced from each other, a gate electrode between the main electrodes, and a pair of diode-forming electrodes spaced farther away from the gate electrode than are the main electrodes. Making ohmic contact with the main semiconductor region, the pair of main electrodes serve both as drain or source of a HEMT switch and as cathodes of a pair of Schottky diodes integrated with the HEMT switch. Both gate electrode and diode-forming electrodes are in Schottky contact with the main semiconductor region.
REFERENCES:
patent: 4791072 (1988-12-01), Kiehl
patent: 6087740 (2000-07-01), Williams
patent: 6252258 (2001-06-01), Chang et al.
patent: 7135740 (2006-11-01), Chang
patent: 2005/0212057 (2005-09-01), Tokuda et al.
patent: 2005/0274977 (2005-12-01), Saito et al.
patent: 2006/0071295 (2006-04-01), Chang
patent: 2006/0118824 (2006-06-01), Otsuka et al.
patent: 2008/0121895 (2008-05-01), Sheppard et al.
patent: 2009/0206363 (2009-08-01), Machida et al.
patent: WO2004/114508 (2004-05-01), None
Chiu Tsz K
Sanken Electric Co. Ltd.
Smith Zandra
Woodcock & Washburn LLP
LandOfFree
Bidirectional electronic switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bidirectional electronic switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bidirectional electronic switch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2670079