MELT GAP MEASURING APPRATUS AND SINGLE CRYSTAL GROWER INCLUDING THE SAME

摘要

PURPOSE: A melt gap measurement apparatus and a single crystal growth apparatus are provided to monitor a section which is not able to be monitored with naked eye during a tailing process using a reflector, thereby improving a yield of a large-diameter silicon single crystal. CONSTITUTION: A combining part(172) is combined with a heat shield part of a single crystal growth apparatus. A reflection part(174) is extended and formed on the lower end of the combining part. The reflection part includes a body part made of quartz an external reflective metal layer which covers the body part. The combining part and the reflection part are formed with the same material. A bottom part(176) is formed by being extended from the lower end of the reflection part.