Title:
VAPOR CHAMBER AND METHOD FOR MANUFACTURING VAPOR CHAMBER
Document Type and Number:
WIPO Patent Application WO/2022/114094
Kind Code:
A1
Abstract:
Provided are a vapor chamber in which the efficiency of transport of a working liquid is increased to achieve a higher heat transfer rate, and a method for manufacturing the same. A vapor chamber 1 includes a working fluid in a sealed internal space S formed of a first metal sheet 11 and a second metal sheet 12 joined together. Of opposing surfaces 11a and 12a via which the first metal sheet 11 and the second metal sheet 12 face each other, in the opposing surface (at least the opposing surface 12a in Fig. 1) of at least one metal sheet, main grooves 21 extending continuously or intermittently in one direction (a direction X of extension of the main grooves) are formed in parallel at predetermined intervals, and, further, communicating grooves 22 communicating adjacent main grooves 21a, 21b with each other are formed in a direction different from the one direction (the direction X of extension of the main grooves 21), with irregular installation pitches and irregular groove widths.
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Inventors:
TANAKA KENGO (JP)
Application Number:
PCT/JP2021/043310
Publication Date:
June 02, 2022
Filing Date:
November 26, 2021
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
H01L23/427; F28D15/02; F28D15/04; H05K7/20
Foreign References:
| JP2007212028A | 2007-08-23 | |||
| JP2019158323A | 2019-09-19 | |||
| JPH0480594A | 1992-03-13 | |||
| JPS5544876B2 | 1980-11-14 | |||
| US20080216994A1 | 2008-09-11 |
Attorney, Agent or Firm:
SAITO Takuya et al. (JP)
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