Patent ID: 7396411

Claim:
An apparatus for manufacturing a single crystal, the apparatus comprising: a seed crystal; a reactive chamber for flowing a raw material gas so that the singe crystal grows from the seed crystal disposed in the reactive chamber; a gas flow control member for controlling the raw material gas to flow toward the seed crystal from a raw material; and a gas passage disposed between the reactive chamber and the gas flow control member, wherein the gas flow control member surrounds the seed crystal through a clearance, wherein the clearance is capable of passing the raw material gas therethrough, wherein the gas passage is capable of flowing a part of the raw material gas to bypass the seed crystal, wherein the gas flow control member includes a tapered cylinder which has an inner diameter, wherein the inner diameter of the tapered cylinder is configured to increase as it approaches the raw material, wherein the tapered cylinder is spaced apart from the seed crystal by a predetermined distance, and wherein the gas passage is disposed outside of the tapered cylinder.