Patent ID: 11965262
Assignee: ASM IP HOLDING B.V.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 11:
12. A thin film deposition apparatus comprising:
a reactor wall;
a gas injection device;
a gas channel;
a gas flow control device; and
a substrate supporting plate,
wherein the gas injection device, the gas channel, and the gas flow control device are sequentially stacked and are provided in the reactor wall,
wherein the substrate supporting plate comprises a top surface, a bottom surface, and a side surface, and an insulating layer is formed on at least a part of the top surface and at least a part of the bottom surface of the substrate supporting plate,
wherein the insulating layer is configured to overlap a target substrate when the target substrate is placed over the substrate supporting plate so that the substrate supporting plate makes a contact with the target substrate due to an electrostatic force produced between the insulating layer and the target substrate, and
wherein a metallic surface exists as a central portion of the top surface and the insulating layer is formed on an edge portion of the top surface and is not formed on the central portion of the top surface to allow the target substrate to be detached after a process ends.