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. 02, 2002
Filed:
Jul. 03, 2001
Jui-Lung Chen, Hsin-Chu, TW;
Shih-Huang Huang, Hsin-Chu, TW;
United Microelectronics Corp., Hsin-Chu, TW;
Abstract
A apparatus uses a test method to perform burn-in testing of a static random access memory that has a plurality of word lines, a plurality of first bit lines, a plurality of second bit lines, and a plurality of memory cells for storing data. Each of the memory cells is coupled to a corresponding word line, a corresponding first bit line, a corresponding second bit line, and a power supply that is used to apply a working voltage to the memory cell to drive the memory cell. When the apparatus tests the static random access memory, the apparatus adjusts the working voltage according to a potential of the word lines and voltage gaps between the first bit lines and the second bit lines.