Patent · US Active

Mounting arrangement

US8618502B2 · kind B2 · utility

0Cited by
9References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 3, 2008
Grant dateDec 31, 2013
Priority date
Expiry dateApr 4, 2031

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J49/068
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

This invention provides a method of mounting cylindrical electrodes in the geometry of a miniature electrostatic quadrupole, which can act as a quadrupole mass filter or a quadrupole ion guide, or be used in a linear quadrupole ion trap. The electrodes are mounted in pairs on microfabricated supports, which are formed from conducting parts on an insulating substrate. The supports include a suspended flexure system to relieve strains caused by mismatch between the thermal expansion coefficients of the electrodes and the substrate. A complete quadrupole is constructed from two such supports, which are spaced apart by further conducting spacers.

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