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:
Feb. 24, 2009
Filed:
May. 25, 2005
Toshiaki Douzaka, Yokohama, JP;
Shigeyuki Hayakawa, Yokosuka, JP;
Yutaka Tanaka, Yokohama, JP;
Tsuyoshi Midorikawa, Yokohama, JP;
Toshiaki Douzaka, Yokohama, JP;
Shigeyuki Hayakawa, Yokosuka, JP;
Yutaka Tanaka, Yokohama, JP;
Tsuyoshi Midorikawa, Yokohama, JP;
Kabushiki Kaisha Toshiba, , JP;
Abstract
A fuse-data reading circuit is provided in a semiconductor integrated circuit device. In the fused-data reading circuit, a differential latch circuit compares a current depending on the resistance across a first fuse element, i.e., target element, with a current depending on the resistance of a series circuit including a second fuse element used as a reference fuse element and a resistor element. The differential latch circuit determines whether the first fuse element has been cut or not.