Patent ID: 9194044
Filing Date: 2015-11-24
Classification: C23C

Abstract:
1. A deposition apparatus comprising: a chamber for depositing a SiC film on a SiC substrate; a gas inlet for supplying a deposition gas into the chamber; a gas outlet located at a bottom section of the chamber; a susceptor, located inside the chamber, on which to place the SiC substrate; a liner for covering inner walls of the chamber, wherein the liner includes a head section located above the susceptor and a barrel section inside which the susceptor is placed, an inner diameter of the head section being smaller than an inner diameter of the barrel section; a heater located inside the chamber so as to be positioned below the SiC substrate placed on the susceptor; and an upper electric resistance heater cluster configured to heat the SiC substrate, and located above the susceptor and between the inner walls of the chamber and the head section of the liner so as to surround the liner, wherein the upper electric resistance heater cluster is divided vertically into a plurality of electric resistance heaters, and wherein the plurality of electric resistance heaters are independently temperature-controlled to maintain the SiC substrate at a predetermined temperature, and wherein a lower section of the upper electric resistance heater cluster is shaped to extend along and conform to a corner section between the head section of the liner and the barrel section of the liner.