Material handling system for growing high-purity crystals

Details Material handling system for growing high-purity crystals Material handling system for growing high-purity crystals

1996-01-29

1999-09-28

Hiteshew, Felisa

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

Apparatus

For crystallization from liquid or supercritical state

117214, 117216, C30B 3500

Patent

active

059581336

ABSTRACT:
A crystal-growing machine (10) includes a furnace chamber (12) and two loading chambers (14 and 16) that permit simultaneous processing operations. At least one of the two loading chambers (14 and 16) includes a lifting mechanism (36) for pulling a crystal (40) from a melt (20) in the furnace chamber (12). A positioning mechanism (60) disengages one of the loading chambers (14 and 16) from the furnace chamber (12) for cooling the crystal (40) in an evacuated environment and engages the other of the loading chambers (14 and 16) for simultaneously recharging the melt (20) or starting growth of another crystal.

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patent: 4973454 (1990-11-01), Morioka et al.
patent: 5009864 (1991-04-01), Ibe et al.
"A unique Concept Takes Shape", article on Chemitronic's new crystal-pulling facility in Burghausen, 5 pages.

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