Oxgen Muffle Controlled Atmosphere Furnace For MLCC Copper Electrode Sintering

Enabling Next-Generation, High-Performance Capacitors with Cost-Effective Copper Metallization

The relentless drive for higher performance and lower cost in multilayer ceramic capacitors has made copper termination the industry benchmark. Tailord's Atmosphere Mesh Belt Sintering Furnaces are precision-engineered to master this critical and demanding process. We provide the exact oxygen-free environment and meticulously uniform thermal profile required to sinter dense, low-resistance copper electrodes onto the fragile barium titanate-based chips—unlocking superior electrical performance, exceptional solderability, and significant cost savings for the global electronics industry.

Key Applications & Process Advantages for MLCC Copper Termination Sintering:

1. Absolute Oxygen-Free Sintering for Maximum Conductivity: Copper is highly susceptible to oxidation, which destroys its conductivity. Our furnaces maintain an ultra-pure, oxygen-free nitrogen atmosphere (with or without a minimal hydrogen addition) throughout the sintering process, ensuring the copper sinters into a bright, highly conductive termination rather than a non-conductive oxide.

2. Optimized for Base-Metal Electrode (BME) Compatibility: The process is perfectly tailored for capacitors with nickel internal electrodes. The carefully controlled atmosphere prevents oxidation of the internal nickel while allowing the external copper to sinter perfectly, ensuring the integrity and reliability of the entire capacitor structure.

3. Superior Solderability and Leach Resistance: The sintered copper termination provides a pristine, oxide-free surface that offers excellent wettability for solder. This results in strong, reliable solder joints on PCBs and superior resistance to solder leaching during reflow, which is critical for high-yield assembly.

4. Lower ESR and Higher Ripple Current Capability: A densely sintered copper electrode exhibits extremely low electrical resistance. This directly translates to a lower Equivalent Series Resistance (ESR) for the capacitor, allowing it to handle higher ripple currents with less self-heating, which is vital for power electronics and decoupling applications.

5. Cost-Effective Alternative to Precious Metals: Copper paste offers a substantial material cost saving over silver-palladium. Our furnace technology makes this transition viable and reliable, enabling manufacturers to produce high-performance capacitors at a competitive cost.

6. High-Volume Production for Global Electronics: Designed for 24/7 continuous operation, our Mesh Belt Furnaces are the engine behind the mass production of MLCCs for everything from smartphones to electric vehicles, offering unparalleled throughput and consistency to meet immense global demand.

7. Exceptional Temperature Uniformity for Yield (±3°C): With guaranteed temperature uniformity across the belt, every single MLCC, from the center to the edge, sinters identically. This eliminates performance gradients and is fundamental to achieving ultra-high production yields and consistent capacitance/ESR values.

8. Gentle Handling for Fragile Ceramic Chips: The smooth, vibration-free transport of the mesh belt is crucial for preventing micro-cracks or chipping in the sintered but brittle ceramic chips during the termination process, thereby preserving the intrinsic reliability of the capacitor.

9. Precise Atmosphere Purity and Dew Point Control: Our systems feature integrated oxygen analyzers and gas purifiers to maintain an extremely low oxygen partial pressure (< 10 ppm) and dew point (< -40°C). This precise control is non-negotiable for preventing any copper oxidation and ensuring batch-to-batch reproducibility.

10. Enabling Miniaturization and Higher Capacitance Densities: The ability to reliably form high-quality copper terminations on smaller and smaller chip sizes (e.g., 0201, 01005) is a key enabler for the continued miniaturization and performance growth of electronic devices.

Partner with Tailord to power the future of electronics. Our copper termination sintering solutions deliver the perfect trifecta of superior electrical performance, manufacturing economy, and unwavering reliability for the capacitors at the heart of modern technology.

• Industrial PC integrated control system
• Ultrasonic mesh belt cleaning system
• Profiling test thermocouple
• Exhaust gas treatment system
• UPS Power Supply
• Industrial chiller