Patent ID: 7763529

Claim:
A method of fabricating a silicon carbide (SiC) layer, comprising following steps: (S 1 ) heating a silicon-based substrate at a temperature of X ° C.; (S 2 ) carburizating the silicon-based substrate with a first hydrocarbon-containing gas at a temperature of Y ° C. to form a carbide layer on the silicon-based substrate; (S 3 ) annealing the silicon-based substrate with the carbide layer thereon at a temperature of Z ° C.; and (S 4 ) forming a silicon carbide layer on the carbide layer with a second hydrocarbon-containing gas and a silicon-containing gas at a temperature of W ° C.; wherein, X is 800 to 1200; Y is 1100 to 1400; Z is 1200 to 1500; W is 1300 to 1550; and X<y≦Z≦W.