| 摘要 |
A vitreous silica crucible, comprising a substantially cylindrical straight body portion having an opening on top end and extending in a vertical direction, a curved bottom portion, and a corner portion connecting the straight body portion with the bottom portion and a curvature of which is larger than that of the bottom portion, wherein, an inner surface of the crucible has a concavo-convex structure in which a groove-shaped valley is interposed between ridges, and an average interval of the ridges is 5 - 100 µm. |
