Ribbon crystal having reduced wetting string

Details Ribbon crystal having reduced wetting string Ribbon crystal having reduced wetting string

2009-12-09

2010-11-30

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Silicon or compound thereof

Elemental silicon

C423S348000

Reexamination Certificate

active

07842270

ABSTRACT:
A string for use in a string ribbon crystal has a base portion with a refractory material, and an externally exposed layer radially outward of the refractory material. The base portion has a coefficient of thermal expansion that is generally matched with the coefficient of thermal expansion for silicon. The externally exposed layer has a contact angle with silicon of between about 15 and 120 degrees.

REFERENCES:
patent: 4627887 (1986-12-01), Sachs

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