Patent ID: 9576839
Date: 2017-02-21
CPC Classifications: B05C,C23C,H01L

Claim:
1. A substrate carrier arrangement for a coating system, comprising: a carrier which comprises at least one support region having a support surface, on which a substrate support is arranged, and which support region comprises in the support surface at least one first and one second gas inlet, wherein the first gas inlet is at a smaller distance from a center (M) of the support surface than the second gas inlet, wherein the first and second gas inlet have mutually independent gas feeds which are arranged to supply gases, having mutually different thermal conductivities, through the at least one first and the at least one second gas inlet, to produce a common, continuous gas cushion, during operation, between the support surface and the substrate support, on which gas cushion the substrate support is arranged spaced apart from the support surface and which gas cushion has a varying thermal conductivity in dependence upon a distance from the center (M), and wherein the support region comprises an edge surface which adjoins the support surface and which is at least partially spaced apart from the substrate support, so that the gases which are supplied by the gas feeds and form the gas cushion between the support surface and the substrate support can flow out laterally past the substrate support.