PRODUCTION OF SINGLE CRYSTAL AND APPARATUS THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a single crystal, capable of readily obtaining substantially L defect-free cylindrical single crystal and provide an apparatus for practicing the producing method. SOLUTION: In this method for producing a single crystal 4 of a semiconductor material by pulling up the single crystal 4 from a melt 2 charged in a crucible and heated by a side heater which encloses the crucible, the melt 2 encloses the single crystal 4 in a circular region around the single crystal and is further heated by a circular heating apparatus arranged in upper position than the melt 2.