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. 18, 1997
Filed:
Nov. 09, 1994
Applicant:
Inventors:
Jim D Meador, Ballwin, MO (US);
Xie Shao, Rolla, MO (US);
Vandana Krishnamurthy, Rolla, MO (US);
Earnest C Murphy, Rolla, MO (US);
Tony D Flaim, St. James, MO (US);
Terry Lowell Brewer, Rolla, MO (US);
Assignee:
Brewer Science, Inc., Rolla, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558393 ;
Abstract
Mid-UV dyes enabling ultra thin antireflection coatings for multi-layer i-line photoetching are produced from bichalcones; bis-a-cyanoacrylates/bis-cyanoacrylamides; and 1.4 divinylbenzenes. The dyes are nonsubliminal and differentially insoluble in standard photoresist solvents.