Real-time monitoring of laser cleaning by an airborne particle counter

W. D. Song, M. H. Hong, S. H. Lee, Y. F. Lu, T. C. Chong

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

A method to monitor laser cleaning is presented in this paper. During laser cleaning of contamination, particles are generated and/or ejected from a substrate based on laser ablation and laser-induced fast thermal expansion of contaminants and/or the substrate. An airborne particle counter is used to detect the particles ejected from the substrate during laser cleaning at the same time as the irradiation of the laser beam. The cleaning threshold, cleaning efficiency, cleanliness of substrate and ablation threshold of substrate can be monitored by particle detection.

Original languageEnglish (US)
Pages (from-to)306-310
Number of pages5
JournalApplied Surface Science
Volume208-209
Issue number1
DOIs
StatePublished - Mar 15 2003

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Keywords

  • Airborne particle counter
  • Contaminants
  • Laser cleaning
  • Real-time monitoring

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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