Mass spectrometer filter
US4079254A · kind A · utility
2Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1977 |
| Grant date | Mar 14, 1978 |
| Priority date | — |
| Expiry date | Feb 14, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mandrel and a layer of metal is deposited over the mandrel and insulators to form a composite unitary structure, including the electrodes. The deposited metal overlying the insulators is then removed, electrically isolating the electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.