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.

Date of Patent:
May. 08, 2007

Filed:

Apr. 02, 2004
Applicants:

Mark Wilson, Cumming, GA (US);

James M. Hurley, Atlanta, GA (US);

Inventors:

Mark Wilson, Cumming, GA (US);

James M. Hurley, Atlanta, GA (US);

Assignee:

Fry's Metals, Inc., Alpharetta, GA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/56 (2006.01); B23K 31/02 (2006.01); B32B 27/38 (2006.01); B32B 27/26 (2006.01); C08L 63/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention is directed to a fluxing curative for curing an underfill that comprises an epoxy resin and for fluxing a solder during a solder assembly of an electronic component to an electronic device substrate and a method for producing the fluxing curative. Specifically, the fluxing curative comprises a salt that is a reaction product of an imidazole component and a carboxylic acid component having at least 10 carbon atoms per molecule. Additionally, the invention is directed to an underfill solution comprising the fluxing curative and a method of attaching an integrated circuit device using the underfill solution.


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