Apparatus for growing hollow crystalline bodies from the melt
US5398640A · kind A · utility
13Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1993 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Mar 1, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T117/104
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A single crystal dome is formed from a surface of revolution and grown from a liquid material on a linear die surface wettable by the molten material. A seed crystal is supported in a position spaced from an axis of revolution which lies in the plane of the wettable surface, and the seed crystal is rotated around the axis of revolution to generate a curved surface having a predetermined radius of curvature. The seed crystal is supported in a predetermined orientation of one of its axes with respect to the wetted surface of commencement of growth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.