LTCC Filters Co Firing Mesh Belt Continuous Sintering Furnace Heat Treatment OEM

Precision Co-Firing for High-Density, High-Reliability Multilayer Circuits

Low-Temperature Co-fired Ceramic (LTCC) technology enables the creation of complex, highly integrated multilayer circuits for high-frequency and high-reliability applications. The post-fire co-firing process is the most critical step, where the "green" laminated modules are transformed into robust, monolithic structures. Tailord's Mesh Belt Sintering Furnaces are masterfully engineered to provide the precise thermal and atmospheric control required to simultaneously sinter the ceramic dielectric and the embedded metallic conductors (typically silver or silver-palladium), ensuring optimal electrical performance, mechanical integrity, and dimensional stability.

Key Applications & Process Advantages for LTCC Post-Fire Co-Firing:

1. Successful Co-firing of Dielectric and Conductor: This is the core of the process. Our furnaces deliver the exact low-temperature profile (typically 850°C - 900°C) necessary to densify the glass-ceramic composite without causing the embedded silver-based conductors to melt, bleed, or form voids, which is critical for circuit functionality.

2. Precision Control of X-Y Shrinkage: LTCC technology relies on predictable and uniform shrinkage. The exceptional temperature uniformity (±3°C or better) across our mesh belt ensures that every part of every panel shrinks identically in the X and Y directions, enabling the fabrication of fine features and high-precision cavities.

3. Minimization of Warpage and Camber: The gentle, continuous horizontal support of the mesh belt is crucial for preventing distortion in large, thin LTCC substrates during sintering. This results in flat, planar modules that are essential for automated assembly and reliable performance.

4. Optimized Atmosphere for Silver Conductors: Operating in a clean air atmosphere is vital. Our furnaces provide precise airflow and exhaust control to ensure complete binder burnout while preventing oxidation of the internal silver conductors, which is essential for maintaining high conductivity and low signal loss.

5. Complete and Clean Binder Burn-out: The multi-zone design allows for a meticulously controlled low-temperature zone where the organic binders and plasticizers are completely and slowly removed. This prevents delamination, blistering, or carbon residue that could compromise the circuit's electrical integrity.

6. High-Volume Production for RF & Automotive: Designed for 24/7 operation, our Mesh Belt Furnaces meet the high-throughput demands for LTCC components used in automotive radar modules, RF filters, wireless modules, and aerospace communication systems.

7. Preservation of Fine-Line Geometry: The stable thermal environment and vibration-free transport preserve the integrity of meticulously printed fine-line conductors and via fills, which is critical for high-frequency performance and circuit density.

8. Superior Via and Layer-to-Layer Interconnection Reliability: The controlled sintering profile ensures strong, continuous metallization within vias and between layers, creating reliable vertical interconnects that are fundamental to the 3D circuit architecture of LTCC.

9. Consistent Dielectric Constant (Dk) and Loss (Df): A uniform and repeatable sintering process is key to achieving a consistent microstructure in the dielectric material. This directly translates to stable and predictable electrical properties (Dk and Df) across the production batch, which is non-negotiable for high-frequency design.

10. Enabling System-in-Package (SiP) Miniaturization: By providing a reliable and scalable co-firing process, our furnaces empower the production of advanced LTCC-based System-in-Package modules that integrate passive components, cavities for chip placement, and sealed embedded components into a single, high-performance unit.

Partner with Tailord to build the foundation of your advanced electronic systems. Our LTCC co-firing solutions deliver the dimensional control, electrical performance, and reliability required for the most demanding applications.

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