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:
May. 26, 2009
Filed:
Dec. 22, 2005
Applicant:
Tetsuro Asano, Gunma, JP;
Inventor:
Tetsuro Asano, Gunma, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
High-resistance elements are connected as parts of a control resistor between a switching element and a protecting element immediately near the switching element and between adjacent protecting elements. Paths for high-frequency signals are cut off, and high-frequency signals can be prevented from leaking although there are parasitic capacitances due to the protecting elements being connected. Accordingly, electrostatic breakdown voltage can be improved, and isolation can be prevented from deteriorating.