Patent ID: 11892249
Assignee: SHANGHAI WORLDIRAY SEMICONDUCTOR TECHNOLOGY CO., LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC F  C  Y | IPC C  F

Claim 0:
1. A heat dissipation apparatus comprising:
a sample placing table having a top surface for supporting a substrate during processing of the substrate and a bottom surface;
a heating structure formed separately from the sample placing table and comprising a first graphene piece having a top surface contacting the bottom surface of the sample placing table and a bottom surface, a second graphene piece having a top surface opposing the bottom surface of the first graphene piece and a bottom surface, and a heating wire disposed between the first and second graphene pieces, the heating structure having a through hole extending through both graphene pieces from the top surface of the first graphene piece to the bottom surface of the second graphene piece;
a heat dissipation table formed separately from the heating structure and having a top surface contacting the bottom surface of the second graphene piece and a bottom surface, the heat dissipation table having a through hole extending from the top surface to the bottom surface of the heat dissipation table and forming a channel together with the through hole in the heating structure, and a plurality of annular waterway grooves formed inside the heat dissipation table and fluidly communicating with the through hole in the heat dissipation table;
a heat dissipation pipeline having an upper end embedded in the through hole in the heat dissipation table and a lower end extending out of the heat dissipation table; and
a protective cover surrounding the heat dissipation table.