Crucible holder for pulling monocrystals
US6334898B1 · kind B1 · utility
7Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2000 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Feb 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T117/1032
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A crucible holder made of a carbon material for use in crystal pulling operations and in the shape of a hollow receptacle. The holder includes at least two distinct and complementary parts that can be brought together by junction surfaces. When the parts are assembled to form the crucible holder, specific portions of the junction surfaces overlap to form at least one overlap area. The crucible holder can limit chemical reactions between the crucible and the holder and prolong the lives of both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.