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:
Jul. 22, 2025

Filed:

Oct. 28, 2022
Applicant:

Micron Technology, Inc., Boise, ID (US);

Inventors:

Faxing Che, Singapore, SG;

Hong Wan Ng, Singapore, SG;

Yeow Chon Ong, Singapore, SG;

Wei Yu, Singapore, SG;

Ling Pan, Singapore, SG;

Lin Bu, Singapore, SG;

Assignee:

Micron Technology, Inc., Boise, ID (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/00 (2006.01); H01L 23/498 (2006.01); H01L 25/00 (2006.01); H01L 25/065 (2023.01);
U.S. Cl.
CPC ...
H01L 23/562 (2013.01); H01L 23/49816 (2013.01); H01L 23/49838 (2013.01); H01L 25/0652 (2013.01); H01L 25/50 (2013.01); H01L 24/32 (2013.01); H01L 24/48 (2013.01); H01L 24/73 (2013.01); H01L 2224/32145 (2013.01); H01L 2224/32245 (2013.01); H01L 2224/48011 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48145 (2013.01); H01L 2224/48221 (2013.01); H01L 2224/73215 (2013.01); H01L 2224/73265 (2013.01); H01L 2924/1438 (2013.01); H01L 2924/182 (2013.01);
Abstract

A semiconductor package assembly includes a substrate, a die stack including at least a bottom die, an inert top spacer, and at least a first inert base spacer. The inert top and base spacers are exclusive of any circuits. A top surface of the inert top spacer is directly attached to a bottom surface of the bottom die in the die stack. A top surface of the first inert base spacer is directly attached to a bottom surface of the inert top spacer and a bottom surface of the first inert base spacer is directly attached to the substrate. The footprint of the inert base spacer is smaller than the footprint of the inert top spacer. In some embodiments, the footprint of the inert base spacer is positioned entirely within the footprint of the inert top spacer.


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