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:
Aug. 23, 1977
Filed:
Aug. 06, 1976
Steven H Foreman, Manassas, VA (US);
Ernest H Millham, Warrenton, VA (US);
James E Ortloff, Warrenton, VA (US);
Ronald Jay Prilik, Annandale, VA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Logic and analog functions in a complex semiconductor component are stuck fault and parametrically tested through an analog/digital measurement adapter coupled to logic and analog testers. Both logic and analog testers are under computer control whose purpose is to direct the testing sequence, log test results, perform algorithmic calculations on the data and diagnose failing devices in the component under test. The adapter provides the electrical environment to match a range of components under test to the logic and analog testers. The adapter is also under computer control to permit impedance matching of a multiplicity of digitally controlled stimulus/response units connected through a multiplexor to the range of components under test.