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US 4,075,055 AGranted
Method and apparatus for forming an elongated silicon crystalline body using a <110>{211}orientated seed crystal
AssigneeInternational Business Machines Corporation
InventorsTheodore Frank Ciszek, Guenter Herbert Schwuttke
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Abstract
Method and apparatus for forming an elongated silicon crystalline body using a capillary action shaping technique. The means for growing and pulling the body from the capillary of the die includes a <110>{211}oriented seed crystal.
Claims4
Method for growing an elongated silicon crystalline body comprising:
- establishing a molten film of silicon overlying the top surface of a carbon containing capillary die;
- growing and pulling said body from the film by using a <110>
- direction, {211} face plane, {111} edge plane, oriented silicon seed crystal whereby said pulling being in the <110>
- direction with {211} face plane and {111} edge plane which results in twinning along the <110>
- direction perpendicular to the {211} face plane, and parallel to the {111} edge plane of said body and which allows any carbon impurities to be incorporated into said body so as to prevent significant nucleation of additional defects.
2 more elements
Dependencies are inferred from the claim text.