Process for synthesizing indium phosphide by liquid phosphorus injection method
US12116690B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2020 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Dec 24, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/40
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to a process for synthesizing indium phosphide by liquid phosphorus injection method, which belongs to the field of semiconductor technology. The method comprises: converting gaseous phosphorus into liquid phosphorus through a condenser, injecting the liquid phosphorus into an indium melt while preventing phosphorus vaporization by randomly delivering a low temperature inert gas, and causing an instantaneous reaction between the liquid phosphorus and the liquid indium melt, so that an indium phosphide melt can be synthesized at a relatively low temperature, with advantages of high efficiency, high purity, precise proportioning, large capacity, aiding in the growth of a phosphorus-rich indium phosphide polycrystal and facilitating the growth of an indium phosphide monocrystal. The method includes the steps of indium cleaning, phosphorus charging, furnace loading, communication of condenser, synthesis, preparation of crystals, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.