Patent · US Expired

One atmosphere, uniform glow discharge plasma

US5414324A · kind A · utility

137Cited by
3References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 29, 1993
Grant dateMay 9, 1995
Priority date
Expiry dateOct 29, 2013

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2237/336
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A steady-state, glow discharge plasma is generated at one atmosphere of pressure within the volume between a pair of insulated metal plate electrodes spaced up to 5 cm apart and R.F. energized with an rms potential of 1 to 5 KV at 1 to 100 KHz. Space between the electrodes is occupied by air, nitrous oxide, a noble gas such as helium, neon, argon, etc. or mixtures thereof. The electrodes are charged by an impedance matching network adjusted to produce the most stable, uniform glow discharge.

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