Patent ID: 7949237
Filing Date: 2011-05-24
Classification: C23C,C30B,H01L

Abstract:
1. An apparatus for heat treating semiconductor substrates comprising: a thermal processing chamber adapted to contain a semiconductor substrate; a substrate holder positioned within the thermal processing chamber, the substrate holder being configured to hold a semiconductor substrate in the chamber; a first heating device in communication with the thermal processing chamber for heating a semiconductor substrate contained in the chamber; a second heating device comprising a light energy source coupled to a light pipe; at least one temperature sensing device for sensing the temperature of a semiconductor substrate at least at one location; and a controller in communication with the at least one temperature sensing device and at least one of the first heating device or the second heating device, the controller being configured to control the amount of energy being emitted by at least one of the heating devices in response to temperature information received from the at least one temperature sensing device.