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:
May. 03, 2022

Filed:

Jun. 30, 2017
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Feras Eid, Chandler, AZ (US);

Venkata Suresh R. Guthikonda, Phoenix, AZ (US);

Shankar Devasenathipathy, Tempe, AZ (US);

Chandra M. Jha, Tempe, AZ (US);

Je-Young Chang, Phoenix, AZ (US);

Kyle Yazzie, San Tan Valley, AZ (US);

Prasanna Raghavan, Chandler, AZ (US);

Pramod Malatkar, Chandler, AZ (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/18 (2006.01); H01L 23/00 (2006.01); H01L 21/50 (2006.01); H01L 23/544 (2006.01); H01L 25/065 (2006.01); H05K 1/02 (2006.01);
U.S. Cl.
CPC ...
H01L 23/562 (2013.01); H01L 21/50 (2013.01); H01L 23/544 (2013.01); H01L 25/0655 (2013.01); H05K 1/0271 (2013.01); H05K 1/181 (2013.01);
Abstract

A foundation layer having a stiffener and methods of forming a stiffener are described. One or more dies are formed over the foundation layer. Each die has a front side surface that is electrically coupled to the foundation layer and a back side surface that is opposite from the front side surface. A stiffening layer (or a stiffener) is formed on the back side surface of at least one of the dies. The stiffening layer may be directly coupled to the back side surface of the one or more dies without an adhesive layer. The stiffening layer may include one or more materials, including at least one of a metal, a metal alloy, and a ceramic. The stiffening layer may be formed to reduce warpage based on the foundation layer and the dies. The one or more materials of the stiffening layer can be formed using a cold spray.


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