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. 15, 2024

Filed:

Oct. 05, 2021
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Inventor:

Yasunobu Saito, Ishikawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/778 (2006.01); H01L 29/423 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7783 (2013.01); H01L 29/4236 (2013.01); H01L 29/7786 (2013.01); H01L 29/7787 (2013.01);
Abstract

According to one embodiment, a semiconductor device comprises a first nitride semiconductor layer on a substrate and a second nitride semiconductor layer on the first nitride semiconductor layer. The second nitride semiconductor layer has a larger bandgap than the first nitride semiconductor layer. Source and drain electrodes are on the second nitride semiconductor layer. A gate electrode is between the source electrode and the drain electrode. A third nitride semiconductor layer of p-type conductivity is on the second nitride semiconductor layer between the drain electrode and the gate electrode and spaced from the drain electrode.


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