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:
Mar. 31, 1987
Filed:
Mar. 04, 1986
Applicant:
Inventors:
Michael Brueggeman, Mt. View, CA (US);
James W Clark, San Jose, CA (US);
William S Phy, Los Altos Hills, CA (US);
Assignee:
Fairchild Semiconductor Corporation, Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
29574 ; 29583 ; 156237 ; 156239 ; 156241 ; 427-5 ; 427 82 ;
Abstract
An applique of a prepatterned film of alpha particle resistant material, such as polyimide, is applied to a semiconductor wafer. The prepatterned film covers only the critical areas e.g. those affected by alpha particle impingement. Bond pads and scribe streets are not covered by the applique.