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.

Date of Patent:
Oct. 04, 2016

Filed:

Feb. 28, 2014
Applicant:

Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;

Inventors:

Norihisa Fujii, Osaka, JP;

Tetsuzo Nagahisa, Osaka, JP;

Masaru Kubo, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/778 (2006.01); H01L 29/417 (2006.01); H01L 29/205 (2006.01); H01L 29/40 (2006.01); H01L 29/20 (2006.01); H01L 29/423 (2006.01);
U.S. Cl.
CPC ...
H01L 29/778 (2013.01); H01L 29/205 (2013.01); H01L 29/41725 (2013.01); H01L 29/41758 (2013.01); H01L 29/7786 (2013.01); H01L 29/2003 (2013.01); H01L 29/402 (2013.01); H01L 29/41766 (2013.01); H01L 29/42316 (2013.01);
Abstract

A heterojunction field effect transistor includes a first contact portion and a second contact portion. A length of the first contact portion in a longitudinal direction is smaller than a length of source electrodes in the longitudinal direction, and a length of the second contact portion in the longitudinal direction is smaller than a length of drain electrodes in the longitudinal direction. For each drain electrode, a distance from ends of the second contact portion to ends of the drain electrode, the ends being outside of the second contact portion, is greater than a distance from ends of the first contact portion to ends of the source electrode, the ends being outside of the first contact portion.


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