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. 04, 2014
Filed:
Aug. 05, 2011
Masanobu Oomura, Yokohama, JP;
Masanobu Oomura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor integrated circuit device comprises: a circuit block formed on a semiconductor substrate; an electrically conductive pattern formed over a portion to be protected of the block; a resetting unit configured to reset a potential of a portion of the pattern to a reference potential; a connecting unit configured to connect the portion to a current supply line; and a detection circuit configured to determine whether a preset range includes a voltage of the portion when a predetermined time has elapsed since the portion is connected to the current supply line after the potential of the portion is reset to the reference potential is provided. A change in voltage of the portion depends on a circuit constant of the pattern.