MLCI 635mm Sintering Continuous Mesh Belt Furnace For Multilayer Inductor

Precision Co-firing for Miniaturization and High Performance

The manufacturing of multi-layer inductors is a marvel of micro-engineering, where alternating layers of ferrite and internal conductive coil are built up and fired into a single, monolithic chip. Tailord's Mesh Belt Sintering Furnaces are critically engineered to master the delicate balance of co-firing these dissimilar materials. We provide the precise thermal and atmospheric control required to sinter the ferrite body to optimal density and magnetic properties while perfectly integrating the internal silver electrode without deformation, delamination, or interaction – enabling the miniaturization and performance that modern electronics demand.

Key Applications & Process Advantages for Multi-layer Inductor Sintering:

1. Successful Co-firing of Ferrite and Silver: This is the core challenge. Our furnaces deliver the exact low-temperature profile necessary to densify the ferrite material (typically Ni-Cu-Zn) while preventing the melting, agglomeration ("balling up"), or excessive diffusion of the internal silver conductor.

2. Prevention of Delamination and Cracking: The controlled, uniform heating and cooling rates throughout the furnace are crucial to mitigating thermal stress between the ceramic and metal layers. This eliminates internal delamination and cracking, ensuring structural integrity and high mechanical strength in the final chip.

3. Optimized Magnetic Property Development: The sintering profile directly determines the grain growth and density of the ferrite. Our precise multi-zone control allows for the development of a fine-grained microstructure that delivers high inductance (L), high quality factor (Q), and a stable, high self-resonant frequency (SRF).

4. Maintenance of Precise Inductor Geometry: The gentle, vibration-free transport of the mesh belt ensures that the intricate internal coil patterns and the external dimensions of the chip are preserved without distortion. This is critical for achieving designed inductance values and for compatibility with automated pick-and-place systems.

5. High-Volume Production for Consumer Electronics: Designed for 24/7 operation, our Mesh Belt Furnaces are the engine behind the mass production of MLCIs for smartphones, wearables, and IoT devices, offering unparalleled throughput and consistency to meet global demand.

6. Atmosphere Control for Property Tuning: The magnetic properties of Ni-Cu-Zn ferrites are sensitive to the firing atmosphere. Our furnaces provide excellent control over oxygen partial pressure, which is key to achieving the desired initial permeability and DC bias performance.

7. Superior Temperature Uniformity for Yield: With a guaranteed temperature uniformity of ±3°C or better across the belt, we ensure every inductor, from the center to the edge, sinters identically. This eliminates performance gradients and is fundamental to achieving ultra-high production yields.

8. Minimized Electrode Resistance: By preventing oxidation and agglomeration of the silver internal electrode, our process maintains a low-resistance conductive path. This directly contributes to a high Q-factor and reduces power losses in the final component.

9. Clean Process for Reliable Termination: A clean furnace interior and high-purity belts prevent contamination that could impair the adhesion and solderability of the external silver terminations, which are applied after sintering.

10. Driving Down Cost per Unit: The combination of high throughput, exceptional yield, and energy-efficient continuous operation significantly reduces the manufacturing cost per inductor, providing a compelling competitive advantage in the market.

Partner with Tailord to co-fire your success. Our sintering technology is the foundation for building smaller, faster, and more reliable multi-layer inductors that power the future of electronics.