Patent · US Expired

Photo ion spectrometer

US5097125A · kind A · utility

6Cited by
21References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 4, 1987
Grant dateMar 17, 1992
Priority date
Expiry dateMay 4, 2007

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J49/142
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A thin film structure for providing predetermined electric field boundary conditions. A thin film configuration is disposed on an insulator substrate in a selected spatial pattern with substantially uniform electrically resistive character in each of the different areas of the spatial pattern.

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