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:
Sep. 04, 2001
Filed:
May. 10, 1999
Applicant:
Inventors:
Robert P. Sheppard, Redbluff, CA (US);
Edward G. Combs, Foster City, CA (US);
Assignee:
ASAT, Limited, Tsuen Wan, HK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/148 ;
U.S. Cl.
CPC ...
H01L 2/148 ;
Abstract
A carrier ring provides a stiffening function for assembling flexible circuits or semi-rigid circuits. The carrier ring is attached to a substrate adapted for attachment of a matrix of semiconductor dies. The carrier ring is provided with mold gates and mold vents for use with a transfer molding step to provide encapsulation for the semiconductor dies. Alignment and indexing marks on the carrier ring allows use of conventional assembly process flows in conventional assembly equipment. The height of the carrier ring also provides a means of providing integrated circuits with a predetermined thickness.