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. 28, 1992
Filed:
Jul. 09, 1991
Applicant:
Inventors:
Bruce J Freyman, Sunrise, FL (US);
Barry M Miles, Plantation, FL (US);
Jill L Flaugher, Margate, FL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 74 ; 357 80 ; 357 81 ;
Abstract
A flexible film is made into a substrate (100) having metallization patterns. A semiconductor device (106) is affixed to the substrate, and the assembly is heated to expand the substrate. A cover (110) is attached to the substrate, over the device (106). Upon cooling, the substrate (100) shrinks and becomes taut and planar within the reinforced area. Alternatively, a reinforcing ring (210) can be attached to the substrate (200) either before or after attachment of the semiconductor device (206).