Ceramic board, due to its heat dissipation performance, current carrying capacity, insulation, thermal expansion coefficient, etc., is much better than ordinary glass fiber PCB board, so it is widely used in high-power power electronic modules, aerospace, military electronics and other products.

       Unlike ordinary PCBs, which use adhesive to bond the copper foil and the substrate together, the ceramic PCB is in a high temperature environment, and the copper foil and the ceramic substrate are joined together by bonding. Will not fall off, high reliability, stable performance in high temperature and high humidity environment.

Advantages and Disadvantages of Ceramic PCBs

Advantage

1. Large current carrying capacity, 100A current continuously passes through the 1mm0.3mm thick copper body, the temperature rise is about 17℃; 100A current continuously passes through the 2mm0.3mm heavy copper body, the temperature rise is only about 5℃; 

2. Better heat dissipation performance, low thermal expansion coefficient, stable shape, not easy to deform and warp.

3. Good insulation, high withstand voltage, protect personal safety and equipment.

4. Strong bonding force, using bonding technology, the copper foil will not fall off.

5. High reliability, stable performance in high temperature and high humidity environment

Shortcoming

1. Fragile, this is the main disadvantage, which also leads to the production of small-area circuit boards.

2. The price is expensive, and there are more and more requirements for electronic products, and ceramic circuit boards are still used in some relatively high-end products.

Uses of Ceramic PCBs

1. High power power electronic modules, solar panel assemblies, etc.

2. High frequency switching power supply, solid state relay

3. Automotive electronics, aerospace, military electronics

4. High power LED lighting products

5. Communication Antennas, Car Igniters