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. 01, 2022
Filed:
Mar. 21, 2020
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Charles L. Arvin, Poughkeepsie, NY (US);
Luca Del Carro, Adliswil, CH;
Thomas Brunschwiler, Thalwil, CH;
Thomas Weiss, Poughkeepsie, NY (US);
Chris Muzzy, Burlington, VT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 1/00 (2006.01); B23K 1/018 (2006.01); B22F 3/11 (2006.01); B23K 3/08 (2006.01); B23K 101/40 (2006.01);
U.S. Cl.
CPC ...
B23K 1/018 (2013.01); B22F 3/11 (2013.01); B23K 3/08 (2013.01); B23K 2101/40 (2018.08);
Abstract
Disclosed are embodiments of forming porous copper on the end of a copper pillar. The embodiments may be used to remove solder from selected locations on a chip or laminate substrate.