Gallium nitride and oxynitrides used as selective detectors of reducing gases, process of making and device containing them
US4983360A · kind A · utility
20Cited by
9References
9Claims
0Family size
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Key dates
| Filing date | Nov 1, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Nov 1, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/176152
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates, a compound for use with selective detectors of the semiconductor resistance type which detect for nitrogenous reducing gases in the atmosphere, especially ammonia and gases containing NH and/or NH.sub.2 groups, said compound comprising the gallium nitride and, oxynitrides of tetrahedral structure according to the general formula: ##EQU1## in which: .quadrature. represents a hole, and 0.ltoreq.x.ltoreq.0.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.