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:
May. 14, 2002
Filed:
Oct. 27, 2000
Applicant:
Inventors:
Walx Fang, Kaohsiung, TW;
Charlie Han, Hsinchu Hsien, TW;
Assignee:
United Microelectronics Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 3/102 ;
U.S. Cl.
CPC ...
G01F 3/102 ;
Abstract
An alternate-timing burn-in method suitable for testing a plurality of memory units on a wafer and capable of preventing any idling due to direct current timing. A first bit line voltage clocking signal is generated and sent to one terminal of any memory unit. A second bit line voltage clocking signal is generated and sent to the other terminal of the same memory unit. In addition, the edge of the second bit line voltage clocking signal corresponds to the mid-point of the first bit line voltage clocking signal.