Patent · US Expired

Method and apparatus for plasma generation

US7091481B2 · kind B2 · utility

27Cited by
71References
71Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 19, 2004
Grant dateAug 15, 2006
Priority date
Expiry dateOct 23, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05H1/246
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An RF-driven plasma source, including a pair of spaced-apart plasma electrodes, wherein the electrodes act as plates of a capacitor, the gas electrically discharges and creates a plasma of both positive and negative ions, in a clean process that enables efficient sample analysis, with preferred isolated sample photo-ionization, reduced-power operation and also including signal detection with modulated drive electronics.

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