Dopant Gas Safety · AsH₃/PH₃ · Semiconductor

Dopant Gas Monitoring

Critical safety monitoring of toxic dopant gases including arsine (AsH₃), phosphine (PH₃), and boron compounds used in semiconductor manufacturing processes.

< 1 ppb Detection Limit
From 30s Response Time
Reliable Operation
Continuous Monitoring

Essential Safety Monitoring for Semiconductor Fabrication

Dopant gases such as arsine (AsH₃), phosphine (PH₃), and boron compounds are essential for semiconductor device fabrication but pose significant safety risks due to their extreme toxicity.

Critical Safety Requirements

  • Personnel Protection: Detect leaks before reaching dangerous exposure levels
  • Regulatory Compliance: Meet OSHA, SEMI, and international safety standards
  • Emergency Response: Immediate alarm activation for rapid evacuation procedures
  • Process Continuity: Maintain production while ensuring maximum safety
  • Asset Protection: Prevent equipment damage from corrosive gas exposure

⚠️ Safety Alert

Extreme Toxicity Warning

These dopant gases are among the most toxic substances used in semiconductor manufacturing. Even brief exposure at ppm levels can be fatal.

AsH₃ OSHA TWA 10 ppb (8-hour)
PH₃ OSHA TWA 300 ppb (8-hour)
Detection Required Sub-ppb levels

Detection at ppb levels is critical for personnel safety.

Monitored Dopant Gases & Detection Capabilities

Comprehensive monitoring of all critical dopant gases with ultra-sensitive detection for maximum personnel protection.

⚠️ Arsine (AsH₃)

Critical n-type dopant gas used for implantation and epitaxial growth processes.

Detection Limit < 1 ppb
Response Time From 30 seconds
Measurement Range 1 ppb to 100 ppm

⚠️ Phosphine (PH₃)

Essential n-type dopant for epitaxial deposition and ion implantation applications.

Detection Limit < 1 ppb
Response Time From 30 seconds
Measurement Range 1 ppb to 50 ppm

⚠️ Boron Compounds

P-type dopants including boron trichloride (BCl₃) for device fabrication.

BCl₃ Detection < 10 ppb
Response Time < 15 seconds

🔧 Other Dopants

Additional dopant gases including silane (SiH₄), germane (GeH₄), and organometallic compounds.

SiH₄ Detection < 5 ppm
GeH₄ Detection < 200 ppb
Response Time < 20 seconds

Applications

  • CVD processes
  • Epitaxial growth
  • Specialized doping
  • Precursor delivery
  • Plasma processes

Monitoring System Architecture

Comprehensive monitoring strategy designed for maximum safety coverage and rapid emergency response.

📍 Point-of-Use Monitoring

Strategic placement of monitors at critical locations for immediate leak detection and personnel protection.

Key Monitoring Points

  • Gas cabinet exhaust points
  • Process tool gas connections
  • Main gas distribution headers
  • Exhaust ventilation systems
  • Personnel corridors and walkways
  • Emergency scrubber locations
Coverage 100% critical areas
Redundancy Dual sensor backup
Power UPS backup systems

🚨 Emergency Response Integration

Seamless integration with facility emergency systems for rapid response and personnel protection.

Automated Response Actions

  • Gas supply valve closure
  • Exhaust fan activation
  • Area evacuation alarms
  • Emergency responder notification
  • Process equipment shutdown
  • Scrubber system activation
Response Time < 5 seconds
Communication Multi-channel alerts
Integration DCS/SCADA/BMS

Protect Your Most Valuable Asset - Your People

Don't compromise on safety when working with toxic dopant gases. Our proven monitoring solutions provide the ultra-sensitive detection and rapid response capabilities essential for protecting personnel and maintaining safe operations.

Sub-ppb Detection · Reliable Operation · Emergency Response Integration · 20+ Years Experience