Applied Markets
Project Details
Semiconductor Component Dismantling — O₂, CO₂, and NO Multi-Gas Monitoring
This delivery supplied GasTiger 2000 units configured for simultaneous O₂, CO₂, and NO measurement to a semiconductor component dismantling and recycling facility in Hwaseong, Gyeonggi-do. Thermal processing and acid cleaning of printed circuit boards and wiring materials can generate nitrogen oxides including NO (nitric oxide) and NO₂ (nitrogen dioxide), along with CO₂ from organic substrate combustion and localized O₂ depletion from high-temperature processes. The units were supplied in a custom three-sensor configuration tailored to the gas hazard profile of this specific dismantling operation.
Delivery Specifications
| Specification | Details |
|---|---|
| Model | GasTiger 2000 portable multi-gas detector |
| Sensor configuration | O₂ (oxygen) + CO₂ (carbon dioxide) + NO (nitric oxide) |
| Measurement purpose | Gas monitoring during semiconductor component dismantling operations |
| Detection method | Internal pump sampling |
| Location | Hwaseong-si, Gyeonggi-do |
Primary Hazardous Gases in Semiconductor Dismantling Processes
- NO (Nitric Oxide) — TWA 25 ppm. Generated during high-temperature thermal treatment of circuit boards and wiring, and during nitric acid cleaning. Absorbed through the respiratory tract where it binds to hemoglobin; chronic respiratory effects at low concentrations
- CO₂ (Carbon Dioxide) — Combustion byproduct from organic and resin-based substrates. Accumulation in poorly ventilated work areas displaces oxygen
- O₂ (Oxygen) — Continuous oxygen level monitoring in the dismantling work zone. Localized oxygen deficiency can develop in areas with active high-temperature combustion processes
Advantages of GasTiger 2000 Custom Sensor Configuration
- Sensor combinations selected from more than 30 available gas types — up to four sensors simultaneously — to match the exact hazard profile of the target process
- Facilities generating non-standard process gases beyond the standard five-gas confined space set can receive purpose-built configurations for their specific operations
- Internal pump sampling allows safe remote gas collection via a probe hose from dismantling benches, cleaning tanks, or heated process areas without direct access
- Color LCD simultaneously displays all three gas readings — immediate field verification during active operations
Frequently Asked Questions
Why is NO gas generated in semiconductor component dismantling processes?
NO is generated when atmospheric nitrogen and oxygen react at high temperatures during thermal processing or combustion of circuit board and wiring materials. Nitric acid (HNO₃) used in some component cleaning processes also produces NO and NO₂ as reaction byproducts.
Is there cross-sensitivity between NO and NO₂ sensors?
Standard electrochemical NO sensors can exhibit some cross-sensitivity to NO₂. In environments where both gases are generated simultaneously — as is common in semiconductor dismantling — configuring separate dedicated sensors for NO and NO₂ is recommended for accurate independent measurement. GasTiger 2000's multi-slot design accommodates both sensors in a single unit.
What is the specific advantage of GasTiger 2000 pump sampling in semiconductor dismantling?
Probe hose sampling allows gas concentration measurement at specific points — dismantling benches, cleaning baths, or heating units — without requiring the operator to enter high-temperature or otherwise inaccessible areas. Unlike diffusion-type detectors, which measure ambient concentrations at the detector position, pump sampling delivers targeted point-specific measurement exactly where gas generation is occurring.
Are there additional gases beyond O₂, CO₂, and NO that should be monitored at dismantling facilities?
Depending on the specific component materials and dismantling methods used, HCl (hydrogen chloride), HF (hydrogen fluoride), VOC (volatile organic compounds), and AsH₃ (arsine) may also be generated. Utilizing the GasTiger 2000's fourth sensor slot for an additional gas, or operating a GasTiger 3000 in parallel for specialty toxic gases, is recommended for comprehensive safety coverage.
Can GasTiger 2000 measurement data be used for statutory work environment monitoring records?
GasTiger 2000 logs measurement history to internal memory for PC backup and reporting. However, statutory work environment measurement obligations in Korea may require certified third-party measurement under specific regulations. GasTiger 2000 data is best used for ongoing site self-monitoring; regulatory compliance requirements should be confirmed with the relevant authority.
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