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. 24, 2015
Filed:
Dec. 20, 2012
Applicant:
Rohm and Haas Electronic Materials Llc, Marlborough, MA (US);
Inventors:
Qin Tang, Fanling, HK;
Kit Ho Tong, Howloon, HK;
Chit Yiu Chan, Shatin, HK;
Martin W. Bayes, Hopkinton, MA;
Assignee:
Rohm and Haas Electronic Materials LLC, Marlborough, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 7/12 (2006.01); H01L 21/02 (2006.01); C23C 22/52 (2006.01); C23F 11/08 (2006.01); C23F 11/14 (2006.01); H05K 3/28 (2006.01);
U.S. Cl.
CPC ...
C09D 7/1233 (2013.01); H01L 21/02304 (2013.01); C23C 22/52 (2013.01); C23F 11/08 (2013.01); C23F 11/149 (2013.01); H05K 3/282 (2013.01);
Abstract
An organic solderability preservative solution includes pyrazine derivatives which inhibit corrosion of metal. The solution is applied to metal surfaces of components for electronic apparatus to improve solderability of electrical connections between the components in the electronic apparatus.