Device for growing crystals

Details Device for growing crystals Device for growing crystals

1993-05-21

1995-03-28

Breneman, R. Bruce

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

Apparatus

For crystallization from liquid or supercritical state

117200, 117201, 422102, B01D 902

Patent

active

054007410

ABSTRACT:
A varisized diffusion cell device (10) comprising a plurality of diffusion cells (18) arranged in rows (20A) to (20F) having progressively greater depths for growing high quality, diffraction grade crystals, is described. In use, the diffusion cells receive a quantity of crystallizing agent (32) that dissolves and diffuses through a head of solvent solution (34) to equilibrate with a drop (38) containing a subject macro-molecular material for growing crystals. The various depths of the diffusion cells provide various diffusion rates and therefore various equilibration rates. Through empirical methods, an optimum diffusion rate for a given crystal growth system can easily be determined.

REFERENCES:
patent: 4886646 (1989-12-01), Carter et al.
patent: 5078975 (1992-01-01), Rhodes et al.
patent: 5096676 (1992-03-01), McPherson et al.
patent: 5130105 (1992-07-01), Carter et al.
patent: 5221410 (1993-06-01), Kushner et al.
patent: 5266284 (1993-11-01), Heilig et al.

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