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:
Jun. 09, 2009
Filed:
Nov. 14, 2007
Chingwen Chang, Taipei, TW;
Chingwen Chang, Taipei, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
A circuit for testing and repairing a fuse device having a plurality of fuse units and being able to serially input and output data is disclosed, the circuit comprises a first multiplexer configured to select either a true or an inverted data for being stored in the fuse device, a second multiplexer configured to select either a true or an inverted data being read out from the fuse device, a storage unit configured to store information of faulty fuse units, and an indication bit being programmed to reflect a comparison between the data intended to be stored in the fuse device and the stored faulty unit information, wherein when the indication bit is at a first state, the first and second multiplexers select the true data, and when the indication bit is at a second state, the first and second multiplexers select the inverted data.