Invention Grant
US09139932B2 Quartz glass crucible and method for treating surface of quartz glass crucible
有权
石英玻璃坩埚及石英玻璃坩埚表面处理方法
- Patent Title: Quartz glass crucible and method for treating surface of quartz glass crucible
- Patent Title (中): 石英玻璃坩埚及石英玻璃坩埚表面处理方法
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Application No.: US11899786Application Date: 2007-09-07
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Publication No.: US09139932B2Publication Date: 2015-09-22
- Inventor: Richard Lee Hansen , Theodore P. Kircher , Narsi Devanathan
- Applicant: Richard Lee Hansen , Theodore P. Kircher , Narsi Devanathan
- Agent Joseph E. Waters
- Main IPC: C30B15/10
- IPC: C30B15/10 ; C03C17/30 ; C30B29/06 ; C30B35/00

Abstract:
There is provided a quartz glass article having a surface treated with novel coating materials which provides a reduced chemistry, wherein the quartz glass surface having a reduced chemistry upon exposure to melted silicon or similarly corrosive environments, forms crystalline structures covering at least 30% of the coated surface of the quartz glass crucible. Said crystalline covered surface provides a more stable surface of contact with the silicon melt and the growth of single crystal silicon. In one embodiment of the invention, the coating material comprises at least a methyl group for providing at least one of a hydrogenated and a methylated surface on the coated surface, forming rosette structures, or other crystalline morphologies covering at last 80% of the coated surface. In another embodiment of the invention, the coating material is selected from at least one of an amine, an organosilane halogen and mixtures thereof.
Public/Granted literature
- US20080092804A1 Quartz glass crucible and method for treating surface of quartz glass crucible Public/Granted day:2008-04-24
Information query
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