Crystal holding apparatus

Details Crystal holding apparatus Crystal holding apparatus

1996-12-11

1998-12-01

Garrett, Felisa

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

Apparatus

For crystallization from liquid or supercritical state

117208, C30B 3500

Patent

active

058432299

ABSTRACT:
In a crystal holding apparatus, a stepped engagement portion of a single crystal formed below a seed crystal is held by holding portions of a pair of lifting jigs so as to be pulled up. A lock mechanism consisting of a hook lever and an engagement pin is provided in order to prevent the closed lifting jigs from opening. Further, a portion of each holding portion to be contacted with a crystal is provided with a swing claw which is swingable about a horizontal pin. Accordingly, it becomes possible to reliably hold the crystal, to prevent generation of a defect in the crystal structure, and to prevent a material melt from being contaminated.

REFERENCES:
patent: 4186123 (1980-01-01), Jericho et al.
patent: 4190630 (1980-02-01), Apilat et al.
patent: 4738832 (1988-04-01), Drechsel
patent: 5126113 (1992-06-01), Yamagishi et al.
patent: 5173270 (1992-12-01), Kida et al.

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