Offset-gate-type semiconductor device

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07061060

ABSTRACT:
A semiconductor device includes a first semiconductor region having a first conductivity type, a second semiconductor region formed on the first semiconductor region and having the first conductivity type, a third semiconductor region formed in a surface of the second semiconductor region and having a second conductivity type, a fourth semiconductor region formed in the surface of the second semiconductor region and having the second conductivity type, and a gate structure formed on the second and fourth semiconductor region. The semiconductor device further includes a conductive member arranged in the trench extending from a surface of the fourth semiconductor region to the first semiconductor region, the trench having one sidewall surface flush with a sidewall surface of the gate structure.

REFERENCES:
patent: 4766474 (1988-08-01), Nakagawa et al.
patent: 5055896 (1991-10-01), Williams et al.
patent: 5760440 (1998-06-01), Kitamura et al.
patent: 5869875 (1999-02-01), Hebert
patent: 55-132054 (1980-10-01), None
patent: 57-37875 (1982-03-01), None
patent: 59-228765 (1984-12-01), None
patent: 4-18762 (1992-01-01), None
patent: 5-121739 (1993-05-01), None
patent: 6-97447 (1994-04-01), None
patent: 8-227998 (1996-09-01), None
Isao Yoshida, et al., “Highly Efficient 1.5 GHz Si Power MOSFET for Digital Cellular Front End”, Proceedings of 1992 International Symposium on Power Semiconductor Devices & ICs, Tokyo, pp. 156-157.
Shuming Xu, et al., “RF LDMOS with Extreme Low Parasitic Feedback Capacitance and High Hot-Carrier Immunity”, TECH. DIG. International Electron Devices Meeting, 1999, pp. 201-204.
M. Shindo, et al., “High Power LDMOS for Cellular Base Station Applications”, Proceedings of 2001 International Symposium on Power Semiconductor Devices & ICs, Osaka, pp. 107-110.
Malay Trivedi, et al. “Comparison of RF Performance of Vertical and Lateral DMosfet”, Proceedings of the 11thInternational Symposium on Power Semiconductor Devices and ICs 1999, pp. 245-248.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Offset-gate-type 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 Offset-gate-type semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Offset-gate-type semiconductor device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3652711

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.