Method of manufacture for an ion mobility filter
US11092568B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 15, 2018 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Nov 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/068
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of manufacture for a ion mobility filter is disclosed. The method of manufacturing an ion filter for a spectrometry system includes providing a sheet of conductive material and defining a plurality of ion filters on the sheet. The definition of the plurality of ion filters is achieved by forming an electrode layer for each ion filter on the sheet, where each electrode layer comprises at least one ion channel and an isolation channel surrounding the at least one ion channel. A support layer on each electrode layer is also formed. Each support layer comprises an aperture at least partially aligned with the at least one ion channel. The ion filter is then separated. The risk of contaminants entering the at least one ion channel when separating the ion filters is reduced by surrounding the at least one ion channel with the isolation channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.