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:
Nov. 15, 1988
Filed:
Mar. 08, 1988
T Michael Hendricks, Loveland, CO (US);
William A Groves, San Jose, CA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
This shorts test method reduces the occurence of phantom shorts and also in those cases where phantom shorts occur, reduces the time required to eliminate the phantom shorts. When an unexpected open or short occurs or when an expected open or short does not occur, the test is repeated either until the phantom result ceases or until a sufficient time has elapsed that the result is real rather than a transient response. Test points are arranged in an order which decreases monotonically with the parallel impedance of all elements connected directly to that test point. This reduces the rate of occurance of phantom shorts caused by parallel inpedances below the shorts threshold even though none of the individual impedances is below the shorts threshold.