Patent ID: 11961756
Assignee: ASM IP HOLDING B.V.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A susceptor comprising:
a face configured to support a substrate thereon;
an outer edge forming an outer perimeter around the face;
a back surface opposite the face, wherein the face comprises:
a channel region positioned between the outer edge and a center of the face; and
a plurality of channels disposed within the channel region and extending radially relative to the center of the face between an inner radial boundary and an outer radial boundary of the channel region, each of the plurality of channels extending from the inner radial boundary to the outer radial boundary; and

a radially extending substantially flat and smooth rim region between the outer edge and the outer radial boundary of the channel region,
wherein an angular separation between first and second channels of the plurality of channels is greater than an angular separation between the second channel and a third channel of the plurality of channels, and
wherein the first channel is radially consecutive with the second channel and the second channel is radially consecutive with the third channel.