发明申请
US20100092776A1 Ribbon Crystal Having Reduced Wetting String 失效
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Ribbon Crystal Having Reduced Wetting String
摘要:
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.
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