Patent ID: 9580835
Date: 2017-02-28
CPC Classifications: C23C,C30B,G01J,H01L

Claim:
1. A substrate processing apparatus, comprising: a vacuum chamber comprising a transparent dome and a transparent floor, wherein both the transparent dome and the transparent floor are quartz; a substrate support disposed inside the vacuum chamber, wherein the substrate support is a platter-like member with low thermal mass; a plurality of thermal lamps arranged in a lamphead and positioned proximate the transparent floor of the vacuum chamber; a plurality of thermal sensors disposed within the lamphead and oriented to receive thermal radiation from an area proximate the substrate support, wherein the thermal sensors receive thermal radiation through the transparent floor, and wherein the thermal sensors receive thermal radiation emitted by the substrate and transmitted by the substrate support; a plurality of power supplies coupled to the thermal lamps in relation to the position of the thermal sensors; a controller that adjusts the power supplies based on input from the thermal sensors; and a reflector disposed proximate the transparent dome, the reflector and the transparent dome together defining a thermal control space.