
Thick Film Process: A conductive layer is formed by screen printing metal paste and high-temperature sintering
1. Alumina (Al₂O₃): Low cost, widely used in general electronic and automotive electronic products.
2. Aluminum Nitride (AlN): High thermal conductivity (170–200 W/mK), suitable for high-power applications.
3. Silicon Nitride (Si₃N₄): High strength and impact resistance, the preferred material for military, aerospace, and automotive electronics.
4. Silicon Carbide (SiC): High temperature resistance and high thermal conductivity, with micro-conductivit
Advantages of Ceramic Materials: High insulation, high heat resistance, high mechanical strength, and excellent heat dissipation.
However, their limitations: They cannot conduct electricity directly and cannot be soldered. Therefore, metallization processes are required to enable ceramics to be used in: power modules (IGBT/SiC), semiconductor equipment, vacuum connectors, LED heat sinks, and aerospace hermetically sealed components.
Ceramic metallization is a key technology that involves forming a conductive metal layer on the surface of a ceramic substrate, enabling it to conduct electricity, be soldered, and be packaged. Because ceramic materials themselves possess high insulation and high-temperature resistance, direct electrical connections are not possible. Through metallization processes, ceramics can be applied to high-end electronics and semiconductor fields.