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:
Nov. 18, 2014
Filed:
Apr. 25, 2013
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Hiroaki Ueno, Osaka, JP;
Daisuke Ueda, Kyoto, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01); H01L 29/778 (2006.01); H03K 17/56 (2006.01); H01L 29/10 (2006.01); H01L 29/20 (2006.01);
U.S. Cl.
CPC ...
H03K 17/56 (2013.01); H01L 29/7786 (2013.01); H01L 29/1066 (2013.01); H01L 29/2003 (2013.01);
Abstract
An equivalent circuit includes: a first transistor having a first gate electrode, a first source electrode, and a first drain electrode; a second transistor having a second gate electrode, a second drain electrode, and a second source electrode electrically connected to the first drain electrode; and a charging and discharging circuit which includes a first capacitor having a terminal electrically connected to the second gate electrode and another terminal electrically connected to the second source electrode, and charges and discharges the first capacitor with predetermined time constants.