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.

Date of Patent:
Mar. 13, 1990

Filed:

Oct. 28, 1988
Applicant:
Inventors:

H Ward Conru, Essex Junction, VT (US);

Stephen E Gons, Camp Hill, PA (US);

Gordon C Osborne, Jr, Burlington, VT (US);

Douglas W Phelps, Jr, Burlington, VT (US);

Stephen G Starr, Essex Junction, VT (US);

William C Ward, Burlington, VT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
228123 ; 228110 ; 228179 ;
Abstract

A compression bond is formed between a gold or gold alloy wire and lead/tin solder by forming a head on the wire and forcing the head into a pad of the solder by thermosonic, or thermocompression, or ultrasonic compression bonding techniques. This forms a gold/tin intermetallic compound which in turn forms the bond. The head of the wire is maintained out of contact with any underlying surface, and surrounded by the solder.


Find Patent Forward Citations

Conru, H. (1990). Method of bonding gold or gold alloy wire to lead tin solder (U.S. Patent No. 4907734). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4907734

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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