Patent ID: 7166168

Claim:
A substrate-coating system, comprising: a substrate holder for holding at least one substrate at a coating position for coating the substrate on a coating side; and a substrate heater; wherein the substrate heater comprises a backside heater for actively heating the substrate from a backside opposite the coating side thereof, while the substrate is at the coating position; wherein: the substrate holder comprises at least one substrate carrier that is transparent to the thermal radiation emitted by the backside heater over at least portions thereof, and the backside heater has at least one heating element arranged on that side of the substrate holder opposite the substrate to be coated; wherein every heating element is an IR thermal radiator, and at least one window area that is at least partially transparent to the thermal radiation emitted by the IR thermal radiator and incorporates a window layer of at least one of a Ge-material, ZnSe-material, ZnS-material or Si-material, is incorporated into the associated substrate carrier; and wherein the window layer is anti-reflection coated for an IR wavelength range below 20 μm on at least one side thereof.