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:
Jul. 25, 1989
Filed:
Feb. 12, 1988
Applicant:
Inventor:
Bernard Greenstein, Glenview, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428632 ; 428647673 ;
Abstract
A solder bonding technique for bonding discrete circuit elements to conductors on an alumina substrate. The conductors are composed of palladium and silver, and atop each conductor at a bonding site, a layer of silver is provided. A layer of solder is disposed over the layer of silver. The compliancy of the silver layer absorbs stresses created by thermal cycles and thereby improves the peel strength of the solder bond.