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. 27, 1997
Filed:
May. 31, 1995
Philip G Shephard, III, Round Rock, TX (US);
William V Huott, Holmes, NY (US);
Paul R Turgeon, Woodstock, NY (US);
Robert W Berry, Jr, Round Rock, TX (US);
Gulsun Yasar, South Burlington, VT (US);
Frederick J Cox, Kirkland, WA (US);
Pradip Patel, Poughkeepsie, NY (US);
Joseph B Hanley, III, Patterson, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An array built-in self test system has a scannable memory elements and a controller which, in combination, allow self test functions (e.g. test patterns, read/write access, and test sequences) to be modified without hardware changes to the test logic. Test sequence is controlled by logical test vectors, which can be changed, making the task of developing complex testing sequences relatively easy.