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:
Aug. 13, 2013
Filed:
Nov. 01, 2010
Tetsuo Asada, Osaka, JP;
Hirofumi Nakagawa, Osaka, JP;
Tetsuo Asada, Osaka, JP;
Hirofumi Nakagawa, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A electrostatic protection element () includes: a substrate () of a first conductivity type; a first low-concentration diffusion region () of a second conductivity type and a second low-concentration diffusion region () of the first conductivity type which are formed on said substrate (), the second conductivity type being different from the first conductivity type; a first high-concentration diffusion region () of the second conductivity type and a second high-concentration diffusion region () of the first conductivity type which are (i) formed in said first low-concentration diffusion region (), and (ii) electrically connected with each other; a third high-concentration diffusion region () of the first conductivity type and a fourth high-concentration diffusion region () of the second conductivity type which are (i) formed in said second low-concentration diffusion region (), and (ii) electrically connected with each other; a fifth high-concentration diffusion region () of the first conductivity type formed in said first low-concentration diffusion region (); and a sixth high-concentration diffusion region () of the second conductivity type formed in said second low-concentration diffusion region (). The fifth high-concentration diffusion region () and the sixth high-concentration diffusion region () are electrically connected with each other.
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