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:
Sep. 22, 1992
Filed:
Jul. 15, 1991
Applicant:
Inventors:
John B Gabaldon, San Diego, CA (US);
Daniel D Evans, Jr, Oceanside, CA (US);
Dale W Cawelti, Carlsbad, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
228179 ; 228103 ;
Abstract
Apparatus and method for detecting missing interconnect material. The distance traveled by a bonding tool is measured while the interconnect material is being bonded to a site. Unless it exceeds a predetermined threshold, a signal is generated indicating missing interconnect material. A pivoting system associated mating electrical contacts, and a measurement/comparator are advantageously employed to facilitate this measurement.