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.:
Date of Patent:
Jul. 20, 2010
Filed:
Jun. 29, 2007
Applicants:
Norimasa Yafune, Nara, JP;
John Kevin Twynam, Nara, JP;
Inventors:
Norimasa Yafune, Nara, JP;
John Kevin Twynam, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/47 (2006.01); H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor switching element, wherein on a semiconductor layer formed on a substrate, or on a semiconductor substrate, a source electrode and a drain electrode are disposed at a predetermined interval in a direction along a surface of the substrate; and a second gate electrode is provided between the source electrode and the drain electrode, the second gate electrode is electrically connected with the source electrode and structured with two types of electrode material layers having Schottky barriers of different heights from each other.