The electronics manufacturing industry is an industry which cover a wide range of fields, encompassing the design, production, and assembly of electronic components, semiconductors, electronic devices, and electronic systems. This industry strives to produce a diverse range of electronic products such as computers, mobile phones, televisions, semiconductor chips, electronic components, communication devices and so on. Electronics manufacturing involves advanced process technologies, which aims at creating products with exceptional performance, superior quality, and high reliability to meet the ongoing demands of the global market. Also, it serves as a significant driver of technological innovation. Within electronics manufacturing, the application of nitrogen sealing technology is extensive, with some common applications outlined below:
Welding and Brazing
In the manufacturing and assembly of electronic components, welding and brazing are common processes. Using nitrogen for these processes reduces the presence of oxygen, prevents oxidation reactions, and enhances the quality and stability of connections. This is crucial for producing high-quality electronic components.
Vacuum Packaging
When manufacturing integrated circuits (IC) and other electronic components, they are typically encapsulated in a vacuum or controlled atmosphere. Nitrogen can be used to create a high-purity atmosphere. This ensures no impurities enter during the packaging process, therefore maintaining the components' performance and reliability.
Silicon Wafer Manufacturing
In the semiconductor industry, the manufacture of silicon wafers is critical. Nitrogen is utilized for annealing and other process steps to improve wafer quality, reduce flaws and enhance the performance of electronic devices.
Electronic Device Assembly
During the assembly and testing of electronic equipment, nitrogen can be employed to create a sterile environment, preventing contamination from dust, impurities, and microorganisms. This is vital for manufacturing high-demand electronic devices.
Electronic Components Packaging
In the packaging process of electronic components, nitrogen is typically used to fill the atmosphere within the packaging material, which can reduce the presence of oxygen, prevent product oxidation, maintain product performance and extend its lifespan.
In the field of electronics manufacturing, it is crucial to strictly control the purity and usage of nitrogen during the nitrogen sealing process. Typically, the nitrogen used requires an extremely high purity level, exceeding 99.999%. The usage of nitrogen needs to be adjusted based on specific application scenarios and process requirements. The primary objective is to maintain a low-oxygen environment to prevent oxidation reactions. Therefore, it’s necessary to appropriately set the nitrogen usage according to the specific needs of each stage and different equipment on the production line, which to ensure the high-quality production of electronic components.
In electronics manufacturing, precise control of gas purity, moisture, and oxygen levels is critical for PCB production, semiconductor assembly, soldering, and testing. RICH, with over 40 years of experience and 4,000+ gas systems installed globally, delivers on-site nitrogen, oxygen, and purification solutions for electronic production lines — ensuring high-quality products, process stability, and reduced defects.
Moisture sensitivity: Electronic components, solder pastes, and semiconductors are sensitive to water and oxygen.
Oxygen control: Even trace oxygen can cause oxidation during soldering, reflow, or PCB assembly.
Process consistency: Unstable gas flow or purity can lead to defects, rework, or batch loss.
Cylinder dependency: Traditional nitrogen cylinders are costly, require storage, and risk contamination.
Cleanroom requirements: Gas systems must meet ISO-class cleanroom standards to prevent particle contamination.
Safety & energy efficiency: Stable inert atmosphere improves yield and reduces energy consumption.
PCB soldering / reflow: Nitrogen atmosphere prevents oxidation and ensures solder quality.
Semiconductor wafer handling: Dry, inert nitrogen for etching, lithography, and coating.
Electronic component storage: Nitrogen-filled storage protects moisture-sensitive parts.
Testing and assembly: Stable, clean gas for AOI (Automated Optical Inspection), functional testing, and QA labs.
Wave soldering & selective soldering: Inert N₂ reduces voids and improves yield.
PNF / PNF+ PSA Nitrogen Generators — high-purity N₂ for soldering, cleanroom, and assembly lines.
Membrane Nitrogen Generators — compact, low-maintenance N₂ supply for labs and pilot production.
Desiccant Dryers / Drying Systems — ultra-low dew point N₂ for moisture-sensitive components.
VPSA / POF Oxygen Plants — controlled oxygen supply for semiconductor processes or lab testing.
Systems can achieve low oxygen ppm (<10 ppm) and dew point < -40°C, meeting electronics manufacturing standards.
High-purity, dry gas: RL-VI PSA and desiccant dryers ensure oxidation-free and moisture-free processes.
Stable flow & pressure: Load-adaptation technology maintains consistent nitrogen supply to all production points.
Energy-efficient operation: Optimized PSA tower design reduces compressed air consumption.
Contamination-free: Stainless steel piping and cleanroom-compatible materials prevent particle contamination.
Reliability & low maintenance: Anti-vibration controls and robust components reduce downtime.
1. PCB soldering / reflow
Problem: Oxidation during reflow leads to poor solder joints.
Solution: PNF+ PSA nitrogen generator supplying controlled N₂ atmosphere.
Benefit: Reduced defects, higher yield, consistent solder quality.
2. Semiconductor wafer handling & coating
Problem: Moisture contamination degrades wafer quality.
Solution: Ultra-dry nitrogen with desiccant dryer.
Benefit: Protected wafer surfaces, improved coating and etching quality.
3. Electronic component storage
Problem: Humidity causes component degradation and failed assembly.
Solution: Nitrogen-filled storage cabinets using on-site N₂ supply.
Benefit: Extended shelf life and reduced component loss.
4. AOI & functional testing
Problem: Unstable gas affects sensitive electronic tests.
Solution: PSA nitrogen generator with stable flow and low moisture.
Benefit: Reliable, reproducible test results, fewer false failures.
Application type (PCB soldering, semiconductor, testing, storage)
Required flow (Nm³/h or scfm)
Nitrogen purity (% N₂) and oxygen limits (ppm O₂)
Dew point requirement (°C)
Delivery pressure (bar/psi)
Duty cycle (continuous, batch, lab-scale)
Cleanroom ISO class or environment constraints
Integration with production automation / PLC / DCS
Safety, moisture, and contamination requirements
| Application | Flow (Nm³/h) | Purity | Dew Point | Pressure | RICH solution |
|---|---|---|---|---|---|
| PCB soldering / reflow | 20–150 | 99%+ N₂ | -40°C | 1–6 bar | PNF / PNF+ PSA + dryer |
| Semiconductor wafer handling | 10–100 | 99.99% N₂ | -40 to -60°C | 0.5–6 bar | PSA + desiccant dryer |
| Component storage | 5–50 | 95–99% N₂ | -40°C | 0.5–4 bar | Membrane PSA |
| AOI / functional testing | 5–20 | 99%+ N₂ | -40°C | 0.5–4 bar | Membrane / PSA + dryer |
Reference specs are illustrative. Contact RICH for custom solutions for your production line.
Cleanroom-compatible nitrogen for ISO-class electronics environments
FAT/SAT verification for flow, purity, and dew point
Stainless steel piping and low-maintenance valves
Optional PLC/DCS integration for automated monitoring and production control
Reduced oxidation and moisture-related defects
Improved PCB, semiconductor, and assembly yield
Reduced dependency on nitrogen cylinders
Energy savings via optimized PSA/membrane systems
Low-maintenance, reliable operation in cleanroom environments
Q: Can nitrogen purity be maintained for soldering and wafer handling?
A: Yes — RL-VI PSA and membrane systems deliver high-purity, low-oxygen nitrogen.
Q: Are the systems suitable for ISO-class cleanrooms?
A: Yes — all gas contact materials and piping are cleanroom-compatible.
Q: Can dew point be controlled for moisture-sensitive electronics?
A: Yes — integrated desiccant dryers provide ultra-low dew point gas.
Q: Can the system integrate with existing factory automation?
A: Yes — PLC/DCS and HMI monitoring options are available.
