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:
Apr. 21, 1992
Filed:
Feb. 01, 1991
Applicant:
Inventors:
Ekkehard Bartmann, Erzhausen, DE;
Reinhard Schulz, Staufen-Wettelbrunn, DE;
Horst Munzel, Reutlingen, DE;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F / ; G03C / ;
U.S. Cl.
CPC ...
430191 ; 430165 ; 430190 ; 430192 ; 430193 ; 430326 ;
Abstract
The invention relates to positive photoresists based on alkali-soluble phenolic resin and photosensitive quinonediazide compounds which, by means of particular additives, give relief structures produced therewith an increased stability towards changes due to thermal effects.
Bartmann, Ekkehard. (1992). Positive photoresist composition containing alkali-soluble phenolic (U.S. Patent No. 5106718). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5106718
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile