Patent ID: 6843849

Claim:
A method of growing a single crystal comprising: bringing a seed crystal into contact with a raw material melt which is heated and melted within a crucible by a resistance heating heater and growing a single crystal; and rotating the crucible without rotating a blade member having a screw form in the crucible in the raw material melt during said growing, the blade member being located at a position corresponding to the center of rotation of the crucible and adjacent to the inside bottom of the crucible, so as to stir the raw material melt in the crucible; wherein said growing a single crystal includes slowly cooling the raw material melt with which the seed crystal makes contact below a liquid level of the raw material melt to precipitate the single crystal on the surface of the seed crystal such that a difference in temperature of the raw material melt between different positions along an extent from the liquid level to a depth of 10 cm is in a range of −0.5° to 0° C.