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:
Jun. 09, 2020

Filed:

Nov. 20, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

David Danovitch, Granby, CA;

Yolande Elodie Nguena Dongmo, Sherbrooke, CA;

Richard Langlois, Granby, CA;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/00 (2006.01); B23K 1/018 (2006.01); B23K 3/08 (2006.01);
U.S. Cl.
CPC ...
H01L 24/98 (2013.01); B23K 1/018 (2013.01); B23K 3/082 (2013.01); H01L 24/799 (2013.01); H01L 2224/98 (2013.01); Y10T 29/53274 (2015.01);
Abstract

A method for removing an electrical component from a substrate where the component is coupled to the substrate by connection elements. The method includes disposing liquid gallium (Ga) at or near an edge of the component and dispersing the liquid Ga between the substrate and the component such that the liquid Ga contacts one or more of the connection elements. The method also includes maintaining the liquid Ga between the substrate, component and one or more of the connection elements for a prescribed time period and removing the component from the substrate by applying a mechanical force to the component.


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