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. 01, 1993
Filed:
Jun. 28, 1991
Applicant:
Inventor:
David C Widder, Billerica, MA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73827 ;
Abstract
A process for nondestructive testing of beam lead bonds in disclosed. A high pressure liquid jet is applied to the beam leads adjacent the bond pad such that a force is applied to the lead in the opposite direction of the bonding step. If the bond does not have sufficient strength, the lead is bent away from the bonding pad and can be detected either visually or electrically. If the bond does have sufficient strength to withstand the force, no degradation of the bond occurs.