Patent ID: 9617636
Date: 2017-04-11
CPC Classifications: C23C,H01L

Claim:
1. A chemical deposition system for controlling a surface temperature of wafer or thin-film grown on the wafer, comprising: a susceptor rotating about an axis; a plurality of wafer holders carried by the susceptor, each wafer holder carrying a wafer and rotating about its own axis, each wafer having a first surface and a second surface opposite to the first surface; a processing gas approaching the first surface of the wafer and being heated to form a thin-film on the first surface; an isothermal plate having a front surface and a rear surface opposite to the front surface and being arranged at the second surface of the wafer for heating the wafer, the front surface of the isothermal plate facing the second surface of the wafer; one or more temperature-measuring elements being arranged at a side of the wafer and being arranged near to the second surface of the wafer to measure a rear surface temperature of the rear surface of the isothermal plate, wherein the rear surface temperature is used to obtain a wafer-side temperature of the wafer.