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HALO QRP

Protect your process with the HALO QRP

Modern semiconductor deposition processes — from low-temperature epitaxy to ALD and MOCVD — operate routinely at chamber pressures far below atmosphere and approach the single-digit torr range. At the same time, process temperatures are continuously decreasing. Under these conditions, residual moisture in the chamber poses a significant threat to process quality and production yields. Tiger Optics’ HALO QRP is optimised to operate under these low-pressure conditions and deliver exact and reliable real-time measurement to verify moisture residue in, for example, the load lock, transfer and process chambers before H2O contaminants compromise the subsequent process step. Based on Tiger Optics’ proven Continuous-Wave Cavity Ring-Down Spectroscopy (CW-CRDS) technology, the HALO QRP sets new standards in ease-of-use and measurement precision for this application, and operates at chamber pressures as low as 1 Torr.

Designed for trace level moisture analysis in low pressure (<50 Torr) applications, the HALO QRP offers:

  • Moisture detection at partial pressure of 1 µTorr and below
  • Absolute accuracy and excellent precision
  • Wide dynamic range—over four orders of magnitude
  • Low cost of ownership and operational simplicity
  • Clean technology—no external calibration gases required
  • Compact analyzer footprint, also available as OEM module for equipment/system integration.

Detection Limit and Sensitivity in Concentration Units (ppb)

QRP LDL Chart

Applications

  • Gas Quality Control
  • UHP Ammonia & High-Brightness LEDs
  • Research & Development
  • Semiconductor Process Tools.

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  • Liquids
Liquids: H₂O