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’ new 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.

Specifications

Brand

Laboratory & Scientific

Stack, Process & CEMS

Detection Capability

Detection
(Matrix independent)
Range LDL (peak-to-peak) Sensitivity (3σ)
H2O 0 – 12 mTorrpp
(1200 ppm @ 10 Torr)
1 μTorrpp
(see chart for ppb units)
0.5 μTorrpp
(see chart for ppb units)

Specifications

Performance
Operating range See Detection Capability table
Detection limit (LDL, 24 h peak-to-peak) See Detection Capability table
Sensitivity (3σ) See Detection Capability table
Precision (1σ, greater of) ± 1% or 1/3 of Sensitivity
Accuracy (greater of) ± 5% or 1/2 of LDL
Speed of response 1 to 2 minutes (if not flow-limited)
Environmental conditions 10°C to 40°C, 30% to 80% RH (non-condensing)
Storage temperature -10°C to 50°C
Gas Handling System and Conditions*
Wetted materials 316L stainless steel (corrosive gas version optional), 10 Ra surface finish
Gas connections 1/4″ male VCR inlet & outlet
Leak tested to 1 x 10-9 mbar l / sec
Inlet pressure 1 – 1000 Torr
Outlet pressure <20 mTorr (0.027 mbar)
Sample gases§ N2, H2, HCl, Ar (standard)
He, Cl2 (optional)
Gas temperature Up to 60°C (in detection cell)
Dimensions, H x W x D
Standard sensor (incl. shutoff valves) 8.73″ x 8.57″ x 26.4″ (222 mm x 218 mm x 670 mm)
Sensor rack (fits up to two sensors) 8.73″ x 19.0″ x 26.4″ (222 mm x 483 mm x 670 mm)
Weight
Standard sensor 30 lbs (13.4 kg)
Electrical
Alarm indicators 2 user programmable, 1 system fault, Form C relays
Power requirements 90 – 240 VAC 50/60 Hz
Power consumption 40 Watts max.
Signal output Isolated 4–20 mA per sensor
User interfaces 5.7″ LCD touchscreen (display-less version optional)
10/100 Base-T Ethernet, RS-232
802.11g Wireless (optional), Modbus TCP (optional)
Patents
U.S. Patent #7,277,177
*Vacuum source required
Pressure requirements for moisture measurement −
for gas purge in standby mode, inlet pressure limit
is 15 psig (1500 Torr)
§HCl and Cl2 sample gases may require corrosive gas
version, please contact us for more information.

Request information or pricing

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