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:
Jul. 01, 2008
Filed:
Dec. 15, 2005
Sung-chieh Lin, Thubei, TW;
Hung-jen Liao, Hsin-Chu, TW;
Fu-lung Hsueh, Hsinchu, TW;
Jiann-tseng Huang, Hsinchu, TW;
Sung-Chieh Lin, Thubei, TW;
Hung-Jen Liao, Hsin-Chu, TW;
Fu-Lung Hsueh, Hsinchu, TW;
Jiann-Tseng Huang, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
A sense amplifier for detecting a logic state of a selected electrical fuse cell among a number of unselected electrical fuse cells includes a bias module coupled to a power supply for generating a first current, and a tracking module coupled to the bias module for generating a second current. A current supplier is coupled to the bias module and the tracking module for generating a third current substantially equal to a sum of the first and second currents scaled by a predetermined factor, the third current being diverted into a first sub-current flowing through the selected electrical fuse cell and a second sub-current leaking through the unselected electrical fuse cells. The tracking module is so configured that the second current scaled by the predetermined factor is substantially equal to the second sub-current, thereby avoiding the first sub-current to be reduced by the second sub-current.