Method for making silicon rods

Details Method for making silicon rods Method for making silicon rods

1980-06-09

1982-01-26

Clements, Gregory N.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG64, 156DIG83, 422248, C30B 1108, C30B 2906, C30B 3500

Patent

active

043127002

ABSTRACT:
To make solar energy competitive, as compared against other sources of energy, inexpensive solar cells are required. To accomplish this goal, a method is provided which enables one to produce silicon rods having a columnar structure made of monocrystalline zones with preferential crystallographic orientation. This is effected by feeding a silicon melt into a crystallization chamber having a vertically movable cooled bottom face under the influence of a temperature gradient directed parallel to the rod axis, so that the rods can be made continuously or semicontinuously with high drawing speeds.

REFERENCES:
patent: 2475810 (1949-07-01), Theuerer
patent: 3267529 (1966-08-01), Gruber et al.
patent: 3660298 (1972-05-01), McClincy et al.
patent: 3745043 (1973-07-01), Bradley
patent: 3759310 (1973-09-01), Barrow et al.

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