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:
Jun. 14, 2005
Filed:
Sep. 24, 2002
Claude Blais, Granby, CA;
Julie Nadeau Filteau, St-Augustin de Desmaures, CA;
Pierre M. Langevin, Granby, CA;
Robert L. Toutant, St-Paul d'Abbotsford, CA;
Alain Warren, Canton de Granby, CA;
Claude Blais, Granby, CA;
Julie Nadeau Filteau, St-Augustin de Desmaures, CA;
Pierre M. Langevin, Granby, CA;
Robert L. Toutant, St-Paul d'Abbotsford, CA;
Alain Warren, Canton de Granby, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Ink jet printing apparatus is employed to form a non-polar ink stop line around a chip site on the polar surface of an organic laminate substrate. The non-polar ink stop line acts to confine polar liquid flux from spreading after application of the flux to the chip site prior to chip joining. Excessive flux spreading results in insufficient flux being present at the chip site for the formation of good electrical connections during solder reflow upon chip joining.