Patent ID: 11967487
Assignee: TOKYO ELECTRON LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 0:
1. A forming method of an electrostatic chuck, the forming method of the electrostatic chuck comprising:
a first process of irradiating, while spreading only a source material of silicon carbide and a source material of alumina on a stage, an ultraviolet ray to the source material of the silicon carbide and the source material of the alumina such that the source material of the silicon carbide and the source material of the alumina are melted and solidified,
wherein in the first process, the source material of the silicon carbide and the source material of the alumina are spread on the stage in a horizontal direction while a mixing ratio between the source material of the silicon carbide and the source material of the alumina is being changed.