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:
Nov. 18, 2003

Filed:

Apr. 12, 2002
Applicant:
Inventors:

Cheng-Tien Lai, Tu-Chen, TW;

Tsung-Lung Lee, Tu-Chen, TW;

Shenghua Wang, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 ;
U.S. Cl.
CPC ...
H05K 7/20 ;
Abstract

A heat dissipation device includes a vaporizing portion ( ), a condensing portion ( ), and a pair of pipes ( ). The vaporizing portion is attached to a heat-generating electronic chip ( ) and contains liquid having great heat conductivity. The condensing portion receives vapor from the vaporizing portion, and cools the vapor to back to liquid form. The pipes are engaged with the vaporizing portion and the condensing portion, thus forming a circulatory route for the vapor from the vaporizing portion to the condensing portion, and for the liquid from the condensing portion to the vaporizing portion.


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