Speaker

Chad Nelson

Chad Nelson

Cavity Ringdown Spectroscopy (CRDS) Product Manager UHP Division - Process Insights

Chester, Vermont, United States

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Background in physics with 15 years of experience in HP / UHP trace gas analysis

Area of Expertise

  • Manufacturing & Industrial Materials
  • Media & Information
  • Physical & Life Sciences

Topics

  • impurity analysis
  • Physics
  • spectroscopy
  • CRDS
  • trace gas analysis

Maximizing ALD and Epitaxy Efficiency by Controlling Process Termination with Real-Time Monitoring

Oxide contamination, especially from trace H₂O, is a major yield risk in semiconductor processes like ALD and Epi, which run at low pressure and temperature. Conventional bake-purge steps lack real-time feedback, causing inefficiency and wafer exposure. We developed HALO QRP, a modified CRDS system for sensitive, interference-free H₂O detection down to 1 mbar. It enables optimized purging, leak detection, and process control, reducing time, gas use, and contamination for improved yield.

Reinventing Incoming and Continuous Quality Control Systems for Real-Time Monitoring Methods

Presentation on continuous quality control monitoring systems evolution

Chad Nelson

Cavity Ringdown Spectroscopy (CRDS) Product Manager UHP Division - Process Insights

Chester, Vermont, United States

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