Cathodic arc modulator systems for metallic plasma ion implantation

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This paper describes the electrical design and operation of a cathodic arc modulator system for metallic plasma ion implantation. Depending on the ion implantation process recipe, various repetition rates, pulse widths, and currents are required. In addition, the cathodic arc system may be synchronized with a higher voltage target modulator system. The cathodic arc is water cooled and usually uses a self generated axial B-field, by use of a series connected solenoid around the arc anode. Typical arc currents of 800 amperes may be utilized with pulse widths ranging from 20 uS to 4 mS. Typical PRF`s may exceed 400 ... continued below

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5 p.

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Reass, W.A. & Wood, B.P. November 1, 1996.

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Description

This paper describes the electrical design and operation of a cathodic arc modulator system for metallic plasma ion implantation. Depending on the ion implantation process recipe, various repetition rates, pulse widths, and currents are required. In addition, the cathodic arc system may be synchronized with a higher voltage target modulator system. The cathodic arc is water cooled and usually uses a self generated axial B-field, by use of a series connected solenoid around the arc anode. Typical arc currents of 800 amperes may be utilized with pulse widths ranging from 20 uS to 4 mS. Typical PRF`s may exceed 400 Hz, with overall system power limited by the presently available 10 kW transformer-rectifier. The cathodic arc modulator system consists of a command charged 10 kV trigger generator, a high voltage arc starter, and a low voltage, high current arc sustain circuit. The arc start and sustain circuits are independently adjustable and utilize a common IGBT device in a hot-deck configuration. This paper provides circuit design and performance information in addition to various process applications.

Physical Description

5 p.

Notes

OSTI as DE97000381

Source

  • 22. International power modulator symposium, Boca Raton, FL (United States), 24-27 Jun 1996

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  • Other: DE97000381
  • Report No.: LA-UR--96-3354
  • Report No.: CONF-960685--8
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 392830
  • Archival Resource Key: ark:/67531/metadc677876

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  • November 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 25, 2016, 1:55 p.m.

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Reass, W.A. & Wood, B.P. Cathodic arc modulator systems for metallic plasma ion implantation, article, November 1, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc677876/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.