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:
Sep. 04, 2012
Filed:
Mar. 09, 2010
Applicant:
Naoyuki Miyazawa, Kanagawa, JP;
Inventor:
Naoyuki Miyazawa, Kanagawa, JP;
Assignee:
Sumitomo Electric Device Innovations, Inc., Yokohama, Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a method for testing a switching circuit including a first FET connected between input/output terminals, a capacitor connected between one of the input/output terminals and the first FET, and a second FET that is connected in parallel with the capacitor and has a gate electrode connected to a ground terminal. The method includes, applying a potential that sets the second FET to a conducting state to the ground terminal, and testing a DC test for the first FET via the second FET.