Proportional control valves integrated in silicon nitride surface channel technology

Maarten Groen, Jarno Groenesteijn, Esken Meutstege, Robert Anton Brookhuis, Dannis Michel Brouwer, Joost Conrad Lötters, Remco J. Wiegerink

    Research output: Contribution to journalArticleAcademicpeer-review

    3 Citations (Scopus)

    Abstract

    We have designed and realized two types of proportional microcontrol valves in a silicon nitride surface channel technology process. This enables on-die integration of flow controllers with other surface channel devices, such as pressure sensors or thermal or Coriolis-based (mass) flow sensors, to obtain a proportional gas flow control system on a single chip. One valve design is implemented with inlet and outlet channels in the plane of the chip, which allows on-chip flow control between several fluidic components and allows up to 70 mg h−1 of flow at 200 m bar. The other valve design operates out-of-plane between surface channels and a fluidic inlet, offering a flow range up to 1250 mg h−1 at 600 m bar, smaller footprint, and low-leakage closure. Measured flow behavior agrees well with laminar flow models created for both valve types.
    Original languageUndefined
    Pages (from-to)1759-1767
    Number of pages9
    JournalJournal of microelectromechanical systems
    Volume24
    Issue number6
    DOIs
    Publication statusPublished - 25 Jun 2015

    Keywords

    • EWI-26569
    • IR-98714
    • METIS-313390
    • EC Grant Agreement nr.: FP7/2007-2013

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