Continuous melt replenishment for crystal growth

Details Continuous melt replenishment for crystal growth Continuous melt replenishment for crystal growth

1999-05-03

2000-07-18

Hiteshew, Felisa

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

Processes of growth from liquid or supercritical state

Having moving solid-liquid-solid region

117 27, 117 87, 117211, 117212, 117922, C30B 1300

Patent

active

060901993

ABSTRACT:
The invention features a method of continuous crystalline growth. A granular source material is introduced into a hopper. A volume of the granular source material exiting the hopper is disposed on a translationally moving belt. The volume of the granular source material forms an angle of repose with the moving belt. The granular source material disposed on the moving belt is continuously fed into a crucible comprising a melt of the granular source material at a rate based on the angle of repose, the speed of the belt, and the size of the opening of the hopper. A crystalline ribbon is continuously grown by solidifying the melt.

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patent: 4594229 (1986-06-01), Ciszek et al.
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patent: 4936947 (1990-06-01), Mackintosh
patent: 5098229 (1992-03-01), Meier et al.
patent: 5242667 (1993-09-01), Koziol et al.

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