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:
Mar. 10, 2020

Filed:

Nov. 16, 2017
Applicant:

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

Inventors:

Paul F. Bodenweber, Kingston, NY (US);

Kamal K. Sikka, Poughkeepsie, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F 3/08 (2006.01); H01L 23/367 (2006.01); H01L 23/40 (2006.01); H05K 7/20 (2006.01); H01L 23/34 (2006.01); H01L 23/36 (2006.01); H01L 21/48 (2006.01); F28F 3/06 (2006.01);
U.S. Cl.
CPC ...
F28F 3/083 (2013.01); H01L 21/4882 (2013.01); H01L 23/34 (2013.01); H01L 23/36 (2013.01); H01L 23/3672 (2013.01); H01L 23/4006 (2013.01); H05K 7/20418 (2013.01); F28F 3/06 (2013.01); F28F 2215/14 (2013.01); F28F 2240/00 (2013.01); H01L 2023/405 (2013.01); H01L 2023/4043 (2013.01); H01L 2023/4056 (2013.01); H01L 2023/4062 (2013.01); H01L 2023/4087 (2013.01); H01L 2224/16225 (2013.01); H01L 2224/32225 (2013.01); H01L 2224/73204 (2013.01); H01L 2224/73253 (2013.01); H01L 2924/15311 (2013.01); H01L 2924/16152 (2013.01);
Abstract

A heat sink includes a first fin and a second fin. The spacing between the first fin and the second fin may be adjusted by a threaded rod. The threaded rod includes a first portion that is engaged with the first fin and a second portion that is engaged with the second fin. The thread pitch of the first portion and the second portion may differ. For example, the pitch of a first internal thread of the first fin may be smaller than the pitch of a second internal thread of the second fin. The spacing of the heat sink fins may be adjusted based upon the current operating conditions of the electronic device to maintain an optimal temperature of a heat generating device during device operation.


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