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:
Jul. 24, 2001
Filed:
Oct. 20, 1999
Applicant:
Inventors:
Lincoln Eramo, Jr., San Clemento, CA (US);
Mitchell G. Male, San Marcos, CA (US);
Robert K. Barr, Laguna Niguel, CA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/028 ; G03F 7/033 ; G03F 7/038 ; C07C 6/752 ;
U.S. Cl.
CPC ...
G03F 7/028 ; G03F 7/033 ; G03F 7/038 ; C07C 6/752 ;
Abstract
The invention provides an oligomer having tetraacrylate functionality which provides enhanced flexibility to photoimageable compositions which function as photoresists. The enhanced flexibility is particularly advantageous in epoxy-containing, solder mask-forming photoimageable composition, as this flexibility provides improved performance in nickel/gold plating.