Miniature device for generating a multi-polar field, in particular for filtering or deviating or focusing charged particles
US6465792B1 · kind B1 · utility
17Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1999 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Sep 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/1205
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a micro-device for generating a multi-polar transverse field, or a micro-device for the filtration or the deflection or the focusing of charged particles, comprising n longitudinal conductive micro-beams (32, 34, 36, 38), of polygonal cross section, and arranged around a longitudinal axis (AA′).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.