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:
Jan. 24, 2017

Filed:

Jul. 29, 2014
Applicant:

Echostar Technologies L.l.c., Englewood, CO (US);

Inventors:

Jerome A. LaPalme, Aurora, CO (US);

William T. Roberts, Centennial, CO (US);

Assignee:

EchoStar Technologies L.L.C., Englewood, CO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H01L 23/40 (2006.01); H01L 23/367 (2006.01); H01L 23/00 (2006.01);
U.S. Cl.
CPC ...
H05K 7/20 (2013.01); H01L 23/367 (2013.01); H01L 23/4093 (2013.01); H01L 24/13 (2013.01); H01L 24/16 (2013.01); H01L 24/32 (2013.01); H01L 24/73 (2013.01); H01L 24/92 (2013.01); H01L 2224/131 (2013.01); H01L 2224/16227 (2013.01); H01L 2224/32225 (2013.01); H01L 2224/73204 (2013.01); H01L 2224/92125 (2013.01); H01L 2924/14 (2013.01); H01L 2924/15311 (2013.01); H01L 2924/3512 (2013.01);
Abstract

A heat sink embodiment has at least one anti-rocking tab that extends outwardly and downwardly from an edge of the body portion of the heat sink. A leading lower edge of the anti-rocking tab is above a top surface of the motherboard when the heat sink is being affixed to the motherboard over a flip chip. During installation of the heat sink to the motherboard, a travel distance limit is imposed by the leading lower edge of the anti-rocking tab, thereby limiting a force that is applied to the die of the flip chip so that an edge and/or a corner of the die of the flip chip is not crushed, or such that the die of the flip chip is not cracked.


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