Title:
METHOD FOR PREPARING VAPOR CHAMBER UPPER COVER PLATE, AND VAPOR CHAMBER
Document Type and Number:
WIPO Patent Application WO/2022/104882
Kind Code:
A1
Abstract:
Provided are a method for preparing a vapor chamber upper cover plate, a vapor chamber upper cover plate, and a vapor chamber. The method for preparing the vapor chamber upper cover plate comprises the following processes: manufacturing a vapor chamber upper cover plate; performing electrochemical deposition on the upper cover plate, and thereby depositing and forming a capillary structure layer having a porous structure on an inner wall of the upper cover plate, wherein the upper cover plate acts as a cathode for the electrochemical deposition, and the material of the capillary structure layer is a zinc nickel alloy, an electrolyte solution for the electrochemical deposition comprises 60 g/L to 120 g/L of zinc sulfate, 60 g/L to 120 g/L of zinc sulfate, 40 g/L to 100 g/L of ammonium chloride and 0.7 g/L to 3.7 g/L of a second additive, and the electrolyte solution has a pH value of 2 to 5; and performing a heat treatment on the capillary structure layer to obtain a vapor chamber upper cover plate having the capillary structure layer. The present application is convenient to operate, simple in process and low in cost, and the constructed capillary structure has an easily controlled thickness, a good performance, and tight combination with the cover plate, can be used for manufacturing an ultra-thin vapor chamber, and solves most process defects of traditional methods.
Inventors:
CHEN XIAOJIE (CN)
SHI YIHUI (CN)
FANG WENBING (CN)
SHI YIHUI (CN)
FANG WENBING (CN)
Application Number:
PCT/CN2020/132288
Publication Date:
May 27, 2022
Filing Date:
November 27, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECH NANJING CO LTD (CN)
AAC TECH NANJING CO LTD (CN)
International Classes:
C25D3/56; C25D5/34; C25D5/48; C25D5/50; F28D15/04
Domestic Patent References:
| WO2020109155A1 | 2020-06-04 |
Foreign References:
| CN101726203A | 2010-06-09 | |||
| CN1498521A | 2004-05-19 | |||
| CN105506692A | 2016-04-20 | |||
| US4120994A | 1978-10-17 | |||
| CN111121510A | 2020-05-08 | |||
| CN107937943A | 2018-04-20 |
Attorney, Agent or Firm:
SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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