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. 15, 1982
Filed:
Aug. 08, 1980
Applicant:
Inventor:
James M Early, CA, US;
Assignee:
Fairchild Camera & Instrument Corp., Mountain View, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G11C / ;
U.S. Cl.
CPC ...
371 28 ; 324 / ; 364900 ; 371 20 ; 371 21 ;
Abstract
Semiconductor memory devices are tested by using a special purpose computer which uses simple test patterns to determine the weakest bits of the device and then tests only these relatively few 'weak bits' and structurally and operationally adjacent bits using highly complex test patterns to determine if the device is functioning properly. This procedure considerably reduces testing time over that required using prior art techniques.