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. 19, 2024

Filed:

Feb. 06, 2020
Applicant:

Uacj Corporation, Tokyo, JP;

Inventors:

Yoshiharu Sakai, Aichi, JP;

Tetsuro Hata, Aichi, JP;

Gaku Torikai, Aichi, JP;

Assignee:

UACJ CORPORATION, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 23/473 (2006.01);
U.S. Cl.
CPC ...
H01L 23/473 (2013.01);
Abstract

A coolant passageway () of a heat sink () has a coolant lead-in part (), a coolant lead-out part (), coolant-contact parts (), coolant-transit parts (), and connecting parts (). The coolant-contact parts () are disposed spaced apart from one another along a coolant path leading from the coolant lead-in part () to the coolant lead-out part () and are configured such that they bring the coolant into contact with a cooling-wall part. The coolant-transit parts () are disposed between adjacent coolant-contact parts () and are configured such that the coolant can transit from upstream-side coolant-contact parts () to downstream-side coolant-contact parts () in the coolant paths. The connecting parts () are interposed between the coolant-transit parts () and the coolant-contact parts () and have a passageway cross-sectional area that is smaller than those of the coolant-contact parts () and the coolant-transit parts ().


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