Patent · US Expired

Device for suppressing flashovers in cathode sputtering installations

US5611899A · kind A · utility

68Cited by
6References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 20, 1995
Grant dateMar 18, 1997
Priority date
Expiry dateNov 20, 2015

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2237/0206
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An AC voltage source connected to at least one cathode is switched off rapidly upon the occurrence of a critical number of so-called "microarcs" which precede a "large arc". In order to be able to differentiate between large arcs and microarcs, a special counting and evaluation device is provided.

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