Patent · US Active

Method of manufacture for an ion mobility filter

US12031944B2 · kind B2 · utility

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23Claims
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Key dates

Filing dateMar 20, 2020
Grant dateJul 9, 2024
Priority date—
Expiry dateApr 11, 2041

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J49/00
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

The present techniques relate to methods of manufacturing MEMS gas sensors, for example, an ion mobility filter which may be used as a field asymmetric ion mobility spectrometry filter. The method comprises a step of providing a support with an aperture (S300, S302) and forming electrical connections (S304) in the support. The method also comprises steps of attaching an electrode layer to the support (S306) so that the electrode layer covers the aperture and forming a plurality of ion mobility electrodes (S308) by mechanically dicing through the electrode layer. Each adjacent pair of electrodes defines an ion channel between them and each electrode is separate from the adjacent electrode(s).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.