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:
Apr. 14, 1992
Filed:
Nov. 21, 1990
Applicant:
Inventors:
Duane C Silvis, Scottsdale, AZ (US);
Udey Chaudhry, Mesa, AZ (US);
James R Eckert, Tempe, AZ (US);
Edward J Mischen, Chandler, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 71 ; 357 80 ; 357 81 ; 361381 ; 361388 ;
Abstract
A layer of aluminum is formed on a surface of a thermal expansion buffer which is used in a semiconductor package. A semiconductor die is attached to the aluminum using a die attach material. An electrical connection for the die is created by attaching a wire from the semiconductor die to the aluminum surface of the buffer. This provides a reliable semiconductor package useful in a high temperature environment.