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. 29, 1990
Filed:
Jun. 13, 1988
Applicant:
Inventors:
Larry D Seiler, Boylston, MA (US);
James L Pappas, Leominster, MA (US);
Robert C Rose, Hudson, MA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
371 223 ; 371 251 ;
Abstract
A system and method for testing nodes, or test points, of an integrated circuit are presented. The invention includes a test/load bus which is used to sequentially load test data and other data onto the integrated circuit chip, to sample test points and to read data previously loaded onto the chip. The test/load bus and its control logic are used for both testing the chip and for loading and dumping data from the chip so that the test capability adds little to the area of the chip.