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:
Mar. 18, 2014
Filed:
Feb. 19, 2011
Applicants:
Pascal Blais, Shefford, CA;
Clement Fortin, Eastman, CA;
Inventors:
Pascal Blais, Shefford, CA;
Clement Fortin, Eastman, CA;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 31/02 (2006.01); H01L 23/488 (2006.01);
U.S. Cl.
CPC ...
Abstract
A reflow method for solder includes heating the solder to a first temperature that is above a liquidus temperature of the solder; cooling the solder to a second temperature that is below a solidification temperature of the solder; reheating the solder to a third temperature that is above a solidus temperature of the solder and below the liquidus temperature of the solder; cooling the solder to a fourth temperature that is below the solidification temperature of the solder.