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. 09, 1999
Filed:
Aug. 13, 1997
Applicant:
Inventors:
Thomas A Koes, Riverside, CA (US);
Grieg B Beltramo, Orange, CA (US);
Assignee:
Morton International, Inc., Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03F / ;
U.S. Cl.
CPC ...
430165 ; 430191 ; 430192 ; 4302701 ; 4302771 ; 430199 ;
Abstract
A positive acting photoresist composition (e.g., a monolayer dry film) which is strippable in aqueous alkaline solution comprises a photo acid generator and a UV-transparent resin binder system which allows efficient photo bleaching of the photoactive component. An acid functional cellulosic resin may be the only binder resin, an acidic acrylate resin being optional. The dry coating is flexible and may be used as an etch and plating resist.