The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9136341 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 15, 2015

Filed:

Mar. 12, 2013
Applicant:

Rf Micro Devices, Inc., Greensboro, NC (US);

Inventors:

Kevin Wesley Kobayashi, Redondo Beach, CA (US);

Haldane S. Henry, Greensboro, NC (US);

Andrew P. Ritenour, Colfax, NC (US);

Assignee:

RF Micro Devices, Inc., Greensboro, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/417 (2006.01); H01L 29/423 (2006.01); H01L 29/812 (2006.01); H01L 29/66 (2006.01); H01L 29/40 (2006.01); H01L 29/778 (2006.01); H01L 29/16 (2006.01); H01L 29/20 (2006.01);
U.S. Cl.
CPC ...
H01L 29/42316 (2013.01); H01L 29/402 (2013.01); H01L 29/41725 (2013.01); H01L 29/66462 (2013.01); H01L 29/66477 (2013.01); H01L 29/7787 (2013.01); H01L 29/812 (2013.01); H01L 29/1608 (2013.01); H01L 29/2003 (2013.01);
Abstract

A field effect transistor having at least one structure configured to redistribute and/or reduce an electric field from gate finger ends is disclosed. Embodiments of the field effect transistor include a substrate, an active region disposed on the substrate, at least one source finger in contact with the active region, at least one drain finger in contact with the active region, and at least one gate finger in rectifying contact with the active region. One embodiment has at least one end of the at least one gate finger extending outside of the active region. Another embodiment includes at least one source field plate integral with the at least one source finger. The at least one source field plate extends over the at least one gate finger that includes a portion outside of the active region. Either embodiment can also include a sloped gate foot to further improve high voltage operation.


Find Patent Forward Citations

Kobayashi, Kevin. (2015). High voltage field effect transistor finger terminations (U.S. Patent No. 9136341). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9136341

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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