Patent ID: 11885019
Assignee: ASM IP HOLDING B.V.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 0:
1. A method of supporting a substrate comprising the steps of:
providing a susceptor in a reaction chamber, the susceptor comprising:
a generally circular body with a radially inward section having a face for receiving the substrate, the face having a gridded surface extending upward and a radially outward section having a plurality of rings extending upward,
wherein the radially inward section comprises a perimeter defined by an angled sidewall concentric with a most inward of the plurality of rings, wherein the angled sidewall comprises a plurality of holes extending through the body and wherein the angled sidewall comprises a plurality of inwardly protruding elongated protrusions;
positioning the substrate above the susceptor;
locating the substrate in contact with the face;
limiting a backside deposition with the contact between the plurality of rings and the substrate; and,
limiting lateral movement of the substrate to less than 2 mm with the contact between the gridded surface and the substrate.