Two-dimensional electrode constructions for ion processing
US7501623B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Apr 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/4225
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode for use in a device such as an ion trap has an axial length extending generally in the direction of a central axis from a first axial end to a second axial end, and an inside surface. The inside surface includes a surface profile that is uniform from the first axial end to the second axial end, or at least is uniform for a uniform section length along the axial direction. The electrode may include an elongated surface feature such as a groove that extends for at least the uniform section length. An aperture may communicate with the groove. The electrode may be axially segmented into regions. Gaps between the regions may be oriented at an angle relative to a plane orthogonal to the central axis. The electrode may be one of several electrodes arranged as an electrode structure coaxially disposed about an elongated interior space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.