Interdigitated electrode configuration for ion filter
US9177769B2 · kind B2 · utility
2Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Aug 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/421
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ion filter (10) for use in ion mobility spectrometry is described, together with a method for manufacturing the filter. The filter (10) is manufactured by removing portions from a monolithic structure to form a pair of electrodes which remain mechanically connected. The connecting portion (22) provides sufficient electrical impedance between the electrodes to effectively electrically separate the electrodes. The connecting portion may be doped or chemically modified to obtain a desired impedance, or this may be obtained through appropriate selection of physical dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.