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. 18, 2000
Filed:
Aug. 17, 1998
Applicant:
Inventor:
Dennis M McCoy, Dallas, TX (US);
Assignee:
Teccor Electronics, L.P., Irving, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
438118 ; 438106 ; 438119 ; 438122 ;
Abstract
A semiconductor device soldered to a conical mounting pedestal of a metal substrate reduces the lateral shearing stress created by temperature changes. An angle between the bonding surfaces of the semiconductor device and the metal substrate can be selected as a function of the coefficients of thermal expansion of the device and substrate material.