Mounting arrangement
US8618502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2008 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Apr 4, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention provides a method of mounting cylindrical electrodes in the geometry of a miniature electrostatic quadrupole, which can act as a quadrupole mass filter or a quadrupole ion guide, or be used in a linear quadrupole ion trap. The electrodes are mounted in pairs on microfabricated supports, which are formed from conducting parts on an insulating substrate. The supports include a suspended flexure system to relieve strains caused by mismatch between the thermal expansion coefficients of the electrodes and the substrate. A complete quadrupole is constructed from two such supports, which are spaced apart by further conducting spacers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.