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:
Nov. 08, 1994
Filed:
Jul. 22, 1992
Applicant:
Inventors:
Carl M Roberts, Jr, Topsfield, MA (US);
Lewis H Long, Woburn, MA (US);
Paul A Ruggerio, Campbell, CA (US);
Assignee:
Anaglog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437226 ; 437924 ; 437974 ;
Abstract
A method for separating individual dies from a wafer in which the wafer is adhered to a plastic film on a film carrier with the circuit side of the wafer facing the film and with circuit components exposed through a hole in the film. In this manner, the circuitry is protected from dust, and trauma from the sawing and cleaning processes because the circuitry is sealed between the film and the non-circuit side of the wafer.