Crystal holding apparatus

摘要

In a crystal holding apparatus, a corrugated portion between a seed crystal and a straight cylindrical portion of a crystal is held by a lifting jig during a single-crystal growing process wherein the seed crystal is brought into contact with material melt and is subsequently pulled while being rotated. The tip end portion of the lifting jig is composed of a swinging portion having a short stroke which swings to hold or release the corrugated portion. A lock mechanism is also provided in order to swing the swinging portion for opening/closing operation and to lock the swinging portion. Accordingly, it is possible to reliably hold the corrugated portion of a crystal while the crystal is pulled in accordance with the CZ method, for example.