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:
Nov. 17, 2015
Filed:
May. 15, 2014
International Business Machines Corporation, Armonk, NY (US);
Charles L. Arvin, Savannah, GA (US);
Brian M. Erwin, Lagrangeville, NY (US);
Eric D. Perfecto, Poughkeepsie, NY (US);
Wolfgang Sauter, Eagle-Vail, CO (US);
Thomas A. Wassick, Lagrangeville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention relates generally to and more particularly, to a method of fabricating a pillar interconnect structure with non-wettable sidewalls and the resulting structure. More specifically, the present invention may include exposing only the sidewalls of a pillar to an organic material that reacts with metal of the pillar to form an organo-metallic layer on sidewalls of the pillar. The organo-metallic layer may prevent solder from wetting on the sidewalls of the pillar during subsequent bonding/reflow processes.