Patent ID: 11929272
Assignee: KOKUSAI ELECTRIC CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 4:
5. A substrate support configured to support a plurality of substrates to be accommodated in a process chamber, comprising:
a plurality of support columns made of metal; and
a plurality of supports installed at the plurality of support columns and configured to support the plurality of substrates in multiple stages,
wherein each of the plurality of supports comprises a plurality of support pins inserted into holes as recesses in the plurality of support columns and are fixed at predetermined intervals, wherein a diameter of the plurality of support columns is between 5 mm to 10 mm, and
wherein each of the plurality of support pins includes:
a metal portion made of metal directly connected to one of the plurality of support columns; and
a contact portion that has a semicircular columnar shape or a flat plate shape, is configured to make contact with one of the plurality of substrates, and is composed of a film of a non-metal material that covers the metal portion, wherein the non-metal material is at least one material selected from the group of silicon, silicon oxide, silicon nitride, and silicon carbide.