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Gasonics AWO-1-8 Optical Viewport

Introduction:
The Gasonics AWO-1-8 is an optical viewport assembly with a specific flange or aperture size (likely related to the “1-8” dimension, such as 1.8 inches or a specific ISO flange code). It provides a sealed optical interface for visual monitoring and diagnostic access in vacuum environments.

Technical Specifications:

  • Optical Material: Fused Quartz or Borosilicate Glass
  • Clear Aperture: Dependent on specific “1-8” configuration (e.g., 1.8 inch diameter)

Detailed content

  • Transmission: High transmission in UV, Visible, and IR spectra
  • Vacuum Rating: 1 x 10^-9 Torr
  • Flange Type: ISO-K, CF, or Custom
  • Pressure Rating: Full atmospheric differential
  • Bakeout Temp: 150°C – 200°C

Functional Features:

  • Optical Clarity: Minimal distortion for accurate visual inspection.
  • Plasma Resistance: Resists darkening from UV exposure.
  • Sealed Design: Metal-sealed or elastomer-sealed to maintain vacuum integrity.
  • Coating Options: Anti-reflective coatings available for specific wavelength optimization.

Application Scenarios:

  • Process Monitoring: Visual observation of plasma state and wafer color.
  • Optical Diagnostics: Housing for pyrometers, cameras, or spectrometers.
  • Laser Access: Port for alignment or processing lasers.
  • Chamber Inspection: Allowing maintenance personnel to view internal components without breaking vacuum.

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