Patent ID: 9371582
Filing Date: 2016-06-21
CPC Classification: C23C

Claim Text:
1. A method for manufacturing a silicon carbide thin film, comprising steps of: (a) utilizing a mechanical pump to remove gases in a chamber such that the pressure in the chamber is reduced to a base pressure; (b) utilizing a microwave generator to generate microwaves at 1200 W to 1400 W so as to form microwave plasma inside the chamber; and (c) introducing into the chamber a silicon-based compound containing chlorine atoms and/or molecules containing chlorine atoms that serve as a precursor, during the time that the temperature of a substrate disposed in the chamber is stable at 400° C. to 500° C., in which the temperature of the substrate is risen by the microwave plasma without heating the substrate additionally, so as to form a crystalline silicon carbide film on the substrate, wherein in Step (c), the pressure in the chamber is between 5 and 10 Torr, wherein Step (c) comprises carrying the precursor by using a carrier gas, wherein the flow rate of the carrier gas is between 1 and 10 SCCM, and wherein in Step (c), the distance between the substrate and a center of the microwave plasma is between 20 and 30 mm.