Large size single crystal seed crystal fabrication by intergrowth of tiled seed crystals
US6805745B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Oct 7, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a method for reproducibly producing large size, single crystals in a crystal growth chamber. The method includes the steps of: (a) forming a plurality of smaller size tiles of single crystals of substantially the same crystal orientation as the desired large size, single crystal; (b) assembling the plurality of smaller tiles into a structure having a larger size while minimizing gapping between adjacent tiles; (c) placing the assembly of smaller tiles formed in step (b) into a growth chamber; and (d) through a growth reaction carried out in the growth chamber, forming a large size single crystal using the assembly of smaller tiles formed in step (b) as a seed crystal for the growth reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.