Apparatus for manufacturing large-surface, band-shaped silicon f

Details Apparatus for manufacturing large-surface, band-shaped silicon f Apparatus for manufacturing large-surface, band-shaped silicon f

1983-12-09

1986-01-14

Lacey, David L.

Coating apparatus

Control means responsive to a randomly occurring sensed...

Responsive to condition of coating material

118401, 118419, 118DIG2, 156617H, 156622, 156DIG83, 156DIG88, 156DIG97, 422247, 422249, B05C 315

Patent

active

045639795

ABSTRACT:
Apparatus for the manufacture of large-surfaced, band-shaped silicon bodies for solar cells through a continuous layering process which uses a net-like structured graphite carrier unit. The net-like structure is used in conjunction with a melting pot made from graphite for receiving silicon smelt. The smelt is fed via a drain opening provided in the floor section of the melting pot to the carrier unit guided through a canal which has been arranged in horizontal direction below the melting pot. In order to ensure a continuous replacement of the smelt volume in the layering canal, the canal is shaped in downward direction as a shallow basin made from quartz, whereby the basin areas "a" and "b" are of different depth. In this manner, a "reserve volume" is provided, which ensures a uniform layering. The apparatus allows a continuous production of silicon bands for solar cells.

REFERENCES:
patent: 2928212 (1960-03-01), Long
patent: 3607115 (1971-09-01), Bleil
patent: 3759671 (1973-09-01), Bleil
patent: 4264407 (1981-04-01), Shudo et al.
patent: 4305776 (1981-12-01), Grabmaier
patent: 4319195 (1982-05-01), Kudo
patent: 4478880 (1984-10-01), Belouet

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