US Patent 7842270 Ribbon crystal having reduced wetting string
Patent 7842270 was granted and assigned to Evergreen Solar on November, 2010 by the United States Patent and Trademark Office.
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Patent 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.
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Patent Inventor Names
Christine Richardson0
Daniel Doble0
Richard Wallace0
Scott Reitsma0
Weidong Huang0
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US Patent 07842270 Ribbon crystal having reduced wetting string US Patent 7842270 Ribbon crystal having reduced wetting string
Infobox
Patent Number
078422700
Patent Number
78422700
Edits on 31 Mar, 2023
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
078422700
Date of Patent
November 30, 2010
0Patent Application Number
126339510
Date Filed
December 9, 2009
0Official Website
Patent Primary Examiner
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US Patent 07842270 Ribbon crystal having reduced wetting string
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07842270
Date of patent
November 30, 2010
Patent application number
12633951
Date Filed
December 9, 2009
Patent primary examiner
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