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. 19, 2007
Filed:
Feb. 15, 2005
Chan-ho Lee, Osan-si, KR;
Chan-ho Lee, Osan-si, KR;
Abstract
Provided are a semiconductor integrated circuit including a unit which detects soft defects in a pull-up circuit of a static memory cell, and a soft defect detection method and a testing method thereof. The semiconductor integrated circuit includes a static memory cell, a bit line connected to a first node of the static memory cell and a complementary bit line connected to a second node of the static memory cell, and an equalization circuit connected to the bit line and the complementary bit line to equalize the bit line and the complementary bit line in response to a test signal during a test mode. The semiconductor integrated circuit and the soft defect detection method can rapidly detect soft defects in the pull-up circuit of the static memory cell without a retention test. Furthermore, the testing method can rapidly detect soft defects in the pull-up circuit of the static memory cell, allowing the test time to be drastically reduced.