Melt-formed polycrystalline ceramics and dopant hosts containing phosphorus
US4175988A · kind A · utility
7Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1978 |
| Grant date | Nov 27, 1979 |
| Priority date | — |
| Expiry date | Aug 14, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S252/951
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are new polycrystalline ceramic bodies formed from melts containing as essential components P.sub.2 O.sub.5, Ta.sub.2 O.sub.3 and Al.sub.2 O.sub.3 and sometimes containing small amounts of SiO.sub.2. Also disclosed are such bodies in the form of planar dopant hosts for doping silicon or germanium with phosphorus. Methods of making both products are disclosed as well as how to use the dopant hosts in a doping process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.