Method of making an electron multiplier device
US4305744A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1980 |
| Grant date | Dec 15, 1981 |
| Priority date | — |
| Expiry date | Sep 15, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/32
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An electron multiplier device formed of the combination of a support made of high temperature-resisting electrically-insulating ceramic material and of a layer of secondary electron emitting semi-conducting glass material fused to the inner wall of the ceramic material and method of making; the multiplier device is further characterized in that the ceramic material and the glass material have substantially the same coefficient of expansion. The device is made by pouring molten semi-conducting glass into at least one channel in a ceramic support having a higher fusion point than that of the glass and the same coefficient of expansion, flowing the glass under pressure through the channel and cooling to leave a semi-conductor wall to the channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.