Method of controlling a thickness of a sheet formed from a melt
US8475591B2 · kind B2 · utility
6Cited by
25References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2009 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Apr 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T117/1024
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method and apparatus for forming a sheet are disclosed. A melt is cooled and a sheet is formed on the melt. This sheet has a first thickness. The sheet is then thinned from the first thickness to a second thickness using, for example, a heater or the melt. The cooling may be configured to allow solutes to be trapped in a region of the sheet and this particular sheet may be thinned and the solutes removed. The melt may be, for example, silicon, silicon and germanium, gallium, or gallium nitride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.