Manufacture of a quartz glass vessel for the growth of single cr

Details Manufacture of a quartz glass vessel for the growth of single cr Manufacture of a quartz glass vessel for the growth of single cr

1988-12-01

1990-06-19

Kellogg, Arthur

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 181, 65 71, 65302, 264101, 264102, 264309, C03B 1904

Patent

active

049350463

ABSTRACT:
A quartz glass crucible adapted for use in a process for pulling a single crystal semiconductor material having an opaque outer substrate of a quartz glass with a relatively high bubble content and an inner transparent glass layer which is substantially free from bubbles. The crucible is produced while the substrate is supported by a rotating mould by forming an atmosphere of high temperature gas and supplying a metered quantity of powders of quartz to the high temperature gas atmosphere to have the quartz powders molten at least partly and directed toward an inner surface of the substrate to be adhered thereon.

REFERENCES:
patent: 3609829 (1971-10-01), Carrell et al.
patent: 4416680 (1983-11-01), Bruning et al.
patent: 4528163 (1985-07-01), Albrecht
patent: 4632686 (1986-12-01), Brown et al.
patent: 4676814 (1987-06-01), Ross et al.

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