Ultrapure mineralizer and improved methods for nitride crystal growth
US12252812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2024 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Feb 6, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/403
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for growth of group III metal nitride crystals includes providing one or more transfer vessels, a source vessel containing a condensable mineralizer composition, and a receiving vessel, chilling a metallic surface within the one or more transfer vessels, transferring a quantity of the condensable mineralizer composition to the one or more transfer vessels via a vapor phase and causing condensation of the condensable mineralizer composition within the one or more transfer vessels, measuring the quantity of the condensable mineralizer composition within the at least one transfer vessel, transferring at least a portion of the condensable mineralizer composition to the receiving vessel, and forming at least a portion of a group III metal nitride boule by an ammonothermal crystal growth process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.