Methods for holding and pulling single crystal

Details Methods for holding and pulling single crystal Methods for holding and pulling single crystal

1997-08-20

1999-02-16

Hiteshew, Felisa

Single-crystal, oriented-crystal, and epitaxy growth processes;

Processes of growth from liquid or supercritical state

Having pulling during growth

117 15, 117 30, 117 32, 117917, C30B 1532

Patent

active

058715789

ABSTRACT:
Oscillation of a growing crystal is suppressed in a Czochralski method when part of the growing crystal is mechanically held. Methods for holding and pulling a single crystal in a Czochralski method, wherein a seed crystal is pulled while rotating after the seed crystal is contacted with a raw material melt, part of the growing single crystal is mechanically held during pulling and the single crystal of heavy weight can be pulled regardless of mechanical strengths of the seed crystal or a neck portion thereof, wherein the raw material melt is under application of a magnetic field thereto when the growing crystal is mechanically held.

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