Weir for inhibiting melt contamination
US9476141B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2014 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Apr 29, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T117/1064
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A system for growing a crystal ingot from a melt is provided. The system includes a first crucible, a barrier, and a shield. The first crucible has a first base and a first sidewall forming a first cavity for containing the melt. The barrier is disposed within the first cavity of the first crucible to inhibit movement of the melt from outward of the barrier to inward of the barrier. The barrier extends from the first base to above the melt. The barrier has an inner arm and an outer arm extending upward to form a channel therebetween. The shield extends downward between the inner arm and the outer arm to inhibit passage of contaminants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.