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:
Feb. 22, 1977
Filed:
Sep. 22, 1975
Applicant:
Inventors:
Peter Bakos, Endicott, NY (US);
John Rasile, Endicott, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03F / ;
U.S. Cl.
CPC ...
96 33 ; 96 36 ; 96 362 ; 96 363 ; 96 49 ; 96 75 ; 96 9 / ;
Abstract
A positive photoresist having increased sensitivity to light and formed by the addition of an acidic compound to a 1,2-quinone-diazide sulphonic acid ester sensitizer.