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:
Sep. 15, 2015

Filed:

Dec. 17, 2013
Applicant:

Oracle International Corporation, Redwood City, CA (US);

Inventors:

Hiren D. Thacker, San Diego, CA (US);

John E. Cunningham, San Diego, CA (US);

Assignee:

ORACLE INTERNATIONAL CORPORATION, Redwood Shores, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01); H01L 21/44 (2006.01); H01L 23/00 (2006.01);
U.S. Cl.
CPC ...
H01L 24/14 (2013.01); H01L 24/11 (2013.01);
Abstract

This chip package includes a substrate having a multilayer electroplated stack disposed on a surface of the substrate. The multilayer electroplated stack may include one or more instances of alternating layers of gold and tin, where relative thicknesses of the alternating layers, when melted, result in a chemical composition having an initial melting temperature to form a bump and a subsequent melting temperature to reflow the bump that is higher than the initial melting temperature. For example, the chemical composition may correspond to a non-equilibrium gold-tin alloy.


Find Patent Forward Citations

Loading…