• DocumentCode
    3211184
  • Title

    First principles optimization of mass producible microscaled linear quadrupoles for operation in higher stability regions

  • Author

    Cheung, Kerry ; Velásquez-García, Luis F. ; Akinwande, Akintunde I.

  • Author_Institution
    Massachusetts Inst. of Technol., Cambridge
  • fYear
    2007
  • fDate
    8-12 July 2007
  • Firstpage
    214
  • Lastpage
    215
  • Abstract
    In recent years, there has been a desire to scale down linear quadrupoles. The key advantages of this miniaturization are the portability it enables, and the reduction of pump-power needed due to the relaxation on operational pressure. Various attempts at making linear quadrupoles on the micro-scale were met with varying degrees of success. This study was proposed to justify the work for a fully microfabricated, mass-producible, MEMS linear quadrupole mass filter. The study indicates that a MEMS quadrupole with square electrodes can function as a mass filter without significant degradation in performance if driven in higher stability regions. Successful implementation of such devices leads into arrayed configurations for parallel analysis, and aligned quadrupoles operated in tandem for enhanced resolution.
  • Keywords
    ab initio calculations; electron lenses; electrostatic lenses; magnetic lenses; mass spectrometer accessories; micromechanical devices; MEMS linear quadrupole mass filter microfabrication; first principles optimization; high stability region operation; mass producible microscaled linear quadrupole; square electrode; Apertures; Assembly; Electrodes; Filters; Geometry; Mass spectroscopy; Micromechanical devices; Resonance; Solid modeling; Stability;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Nanoelectronics Conference, 2007. IVNC. IEEE 20th International
  • Conference_Location
    Chicago, IL
  • Print_ISBN
    978-1-4244-1133-7
  • Electronic_ISBN
    978-1-4244-1134-4
  • Type

    conf

  • DOI
    10.1109/IVNC.2007.4481001
  • Filename
    4481001