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:
Oct. 13, 2015
Filed:
Jan. 14, 2014
Applicant:
United Microelectronics Corp., Hsinchu, TW;
Inventor:
Min-Chia Wang, New Taipei, TW;
Assignee:
UNITED MICROELECTRONICS CORP., Hsinchu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01H 85/00 (2006.01); H01L 23/525 (2006.01); H01L 21/66 (2006.01);
U.S. Cl.
CPC ...
H01L 23/5256 (2013.01); H01L 22/14 (2013.01); H01L 22/20 (2013.01);
Abstract
An electronic-fuse (e-fuse) circuit includes: an e-fuse array; a control switch, coupled to the e-fuse array, for controlling whether a voltage supply is applied to the e-fuse array in programming; and a close loop feedback circuit, coupled to the control switch and the e-fuse array, for clamping at lease one node voltage of the e-fuse array to a reference voltage, and for controlling the control switch to control a blowing current in programming the e-fuse array.