Controlled Atmosphere Quartz Tube Furnace For Copper Paste Sintering

Nitrogen-Hydrogen Atmosphere Tube Furnace for Copper Paste Sintering

Precision Sintering in an Oxygen-Free Sanctuary for Maximum Conductivity and Cost-Effectiveness

Copper, with its exceptional electrical conductivity and cost advantage, is the ideal conductor for advanced electronics—if its fierce susceptibility to oxidation can be mastered. Tailord's Nitrogen-Hydrogen Atmosphere Tube Furnaces are engineered to provide this absolute oxygen-free sanctuary. By delivering a pristine, precisely controlled reducing environment within a uniform thermal zone, our furnaces enable the successful sintering of copper paste into dense, low-resistance, and highly reliable conductive tracks, unlocking the full potential of copper for next-generation applications from solar cells to power modules.

Key Applications & Process Advantages for Copper Paste Sintering:

1. Absolute Oxygen Elimination for Pure Metallic Copper: The core of our system is the creation and maintenance of a perfectly sealed, oxygen-free environment using a high-purity nitrogen-hydrogen mixture. Hydrogen acts as a powerful reducing agent, scavenging any trace oxygen and ensuring the copper sinters into a pure, metallic state with brilliant, oxide-free conductivity, rather than a non-conductive oxide.

2. Ideal for R&D, Pilot Lines, and Small-Batch Production: The tube furnace configuration is perfectly suited for research experiments, process development, and low-to-medium volume manufacturing. It allows for quick turnaround of different material sets and sintering profiles, drastically accelerating development cycles.

3. Superior Sintering Density for Low Sheet Resistance: The precise thermal profile and uniform hot zone ensure the copper particles sinter into a dense, continuous film with minimal porosity. This directly translates to lower sheet resistance and higher electrical conductivity, which is critical for efficient current transport in fine-line circuits.

4. Excellent Process Control and Repeatability: Equipped with advanced mass flow controllers for gases and precise programmable temperature controllers, our tube furnaces offer unmatched control over the two most critical sintering parameters: atmosphere and temperature. This ensures exceptional process repeatability from run to run.

5. Versatile Sintering for Diverse Substrates: Excellently suited for sintering copper on a wide range of substrates, including ceramics (Al₂O₃, AlN), glass, and silicon wafers. The controlled atmosphere prevents oxidation of the substrate while perfectly sintering the copper layer.

6. Cost-Effective Alternative to Silver: Copper paste offers a substantial material cost saving over silver. Our tube furnace technology makes this transition technically viable for a wide range of applications by providing the essential controlled atmosphere required for success.

7. Minimized Hydrogen Consumption with Efficient Design: The tube furnace's compact and sealed workspace is highly efficient, requiring smaller gas volumes to maintain atmosphere purity compared to larger chamber furnaces. This results in significantly lower operational costs for protective gas.

8. Easy Integration with Vacuum/Purge Systems: Our systems can be equipped with vacuum and purge capabilities, allowing for rapid and efficient removal of ambient air from the tube before the sintering cycle begins. This is the best practice for ensuring an ultra-clean start to the process.

9. Real-Time Atmosphere Monitoring (Optional): Systems can be fitted with an oxygen analyzer to monitor the effluent gas, providing real-time, verifiable proof that the internal atmosphere remains within the required purity threshold (e.g., O₂ < 10 ppm) throughout the entire sintering process.

10. Foundational for Advanced Metallization Schemes: By providing a reliable platform for copper sintering, this technology enables the development of advanced interconnection schemes for photovoltaic cells, power electronics packaging, and hybrid circuits, where performance and cost are paramount.

Partner with Tailord to harness the power of copper without compromise. Our N₂-H₂ atmosphere tube furnaces provide the essential, controlled environment to sinter high-performance, reliable copper conductors that drive innovation and value in your electronic devices.

• Industrial PC integrated control system
• Profiling test thermocouple
• Oxygen Analyzer
• Exhaust gas treatment system