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:
Apr. 26, 2011
Filed:
Mar. 08, 2007
Toshio Kakiuchi, Gunma-ken, JP;
Toshio Kakiuchi, Gunma-ken, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A semiconductor apparatus is equipped with an internal circuit () including a semiconductor element ()() and a protection circuit () including a semiconductor ()() for protecting the internal circuit () against damage from electrostatic discharge (ESD). The semiconductor elements ()() ()() constituting the internal circuit () and the protection circuit () include an impurity diffusion region ()() connected by an external terminal and a guard band region ()() formed near the impurity diffusion region ()(), respectively. A shortest distance (L)(L) between the impurity diffusion region ()() and the guard band region ()() in the semiconductor element ()() of the protection circuit () is set to be shorter than a shortest distance (L)(L) between the impurity diffusion region ()() and the guard band region ()() in the semiconductor element ()() of the internal circuit ().