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:
Oct. 16, 2001
Filed:
Mar. 31, 2000
Applicant:
Inventors:
Rodney J. Hurditch, Providence, RI (US);
Donald W. Johnson, Brookline, MA (US);
Neela Joshi, Acton, MA (US);
Assignee:
MicroChem Corp., Newton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/023 ;
U.S. Cl.
CPC ...
G03F 7/023 ;
Abstract
Compositions useful for a lift-off resist in a bilayer metal lift-off process, which comprise a mixture of at least one solvent, at least one polyglutarimide resin and an effective amount of at least one actinic-absorbing dissolution rate modifier having the formulae of (IA) or (IB):