Patent ID: 9570328
Date: 2017-02-14
CPC Classifications: H01L

Claim:
1. A substrate support for use with a multi-zonal heating source, comprising: a substrate support having a pocket disposed in a surface of the substrate support and a lip disposed about the pocket to receive an edge of a substrate and to support the substrate in a plane over the pocket such that a gap is defined between an exposed, substrate-facing pocket surface and a backside surface of the substrate when the substrate is disposed on the lip; and a plurality of geometric features in the pocket surface so that the pocket surface is non-planar, the plurality of geometric features operative in combination with a plurality of heating zones provided by a multi-zonal heating source to provide a desired temperature profile on a frontside surface of a substrate when the substrate is disposed on the lip; wherein the plurality of features are alternatingly disposed above and below a baseline surface profile of the pocket surface in a radial direction from a central axis of the substrate support, and wherein a highest point of at least one of the features disposed above the baseline surface profile is disposed beneath and spaced apart from the plane.