Bellows assembly for crystal ribbon puller
US4360499A · kind A · utility
4Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1981 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Jun 22, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T117/106
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
There is disclosed apparatus for growing a ribbon of crystalline material which apparatus comprises a furnace adapted to contain a melt from which the ribbon is to be grown and crystal pulling means spaced from the furnace and including crystal seed holding means and sliding means moving said crystal seed holding means toward and away from the furnace. Extending between the furnace and the crystal seed pulling means are inner and outer bellows means spaced apart from each other to define a space therebetween. This space may be purged with an inert gas when pulling crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.