US 12,007,172 B2
Heat sink
Po-Shen Wang, New Taipei (TW); and Hsin-Tzu Kuo, New Taipei (TW)
Assigned to YI CHANG CO., LTD., New Taipei (TW)
Filed by YI CHANG CO., LTD., New Taipei (TW); Po-Shen Wang, New Taipei (TW); and Hsin-Tzu Kuo, New Taipei (TW)
Filed on Jan. 12, 2022, as Appl. No. 17/573,660.
Claims priority of application No. 110102154 (TW), filed on Jan. 20, 2021.
Prior Publication US 2022/0228812 A1, Jul. 21, 2022
Int. Cl. F28D 15/04 (2006.01)
CPC F28D 15/046 (2013.01) 13 Claims
OG exemplary drawing
 
1. A heat sink comprising:
a casing including a chamber filled with a working fluid; and
a capillary structure located in the chamber, wherein the capillary structure is formed by stacking a plurality of metal nets and then shaping the plurality of metal nets, metal wires of one of the two metal nets are aligned with capillary pores in another of the two metal nets when two metal nets are stacked, then the two metal nets are embedded into each other after shaping, so that the capillary structure includes a plurality of capillary pores of different diameters and at least one supporting portion connected to a substrate, and the substrate and the at least one supporting portion abut two opposite inner faces of the casing, respectively.