US 12,490,409 B2
Vapor chamber and manufacturing method thereof
Chun-Hung Lin, New Taipei (TW)
Assigned to TAIWAN MICROLOOPS CORP., New Taipei (TW)
Filed by TAIWAN MICROLOOPS CORP., New Taipei (TW)
Filed on Aug. 18, 2022, as Appl. No. 17/891,112.
Claims priority of application No. 111115635 (TW), filed on Apr. 25, 2022.
Prior Publication US 2023/0345670 A1, Oct. 26, 2023
Int. Cl. H05K 7/20 (2006.01); F28D 15/04 (2006.01)
CPC H05K 7/2029 (2013.01) [F28D 15/04 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A vapor chamber, comprising:
a first housing, comprising a first inner surface;
a first capillary structure, disposed on the first inner surface;
a second housing, comprising a second inner surface, sealed with the first housing correspondingly to jointly define a chamber;
a second capillary structure, disposed on the second inner surface;
a plurality of supporting columns disposed in the chamber, each one of the supporting columns comprising a first end surface and a second end surface:
a first bonding layer, formed between the first inner surface and entirely the first end surface;
a second bonding layer, formed between the second inner surface and the second end surface;
a primary cooling zone offset from the center of the vapor chamber and a secondary cooling zone, wherein a distribution density of the supporting columns in the primary cooling zone is greater than a distribution density of the supporting columns in the secondary cooling zone; and
a working fluid, arranged inside the chamber,
wherein the first capillary structure is a metal mesh comprising a plurality of first through holes, and each one of the first through holes is adapted to sheathe each one of the supporting columns to be fixed on the first inner surface correspondingly;
wherein the first bonding layer and a second bonding layer comprise a curing copper paste made of a copper powder base mixing with a bonding agent:
wherein the second capillary structure comprises a plurality of second through holes, and each one of the second through holes is adapted to sheathe each one of the supporting columns to be fixed on the second inner surface correspondingly.