Ceramic circuit board knowledge

What is a ceramic circuit board?

Unlike traditional FR-4 (plastic), ceramic materials have good high-frequency performance and electrical properties, and have high thermal conductivity, excellent chemical stability and thermal stability, and are not available in organic substrates. Ideal packaging material for large scale integrated circuits and power electronics modules. Therefore, in recent years, ceramic circuit boards have received extensive attention and rapid development.

Advantages of ceramic circuit boards

1. Higher thermal conductivity

2. More matching coefficient of thermal expansion

3. Stronger, lower resistance metal film

4. The solderability of the substrate is good and the use temperature is high.

5. Good insulation

6. Low frequency loss

7. Can be assembled in high density

8. Free of organic components, resistant to cosmic rays, high reliability in aerospace and long service life

9. The copper layer does not contain an oxide layer and can be used for a long time in a reducing atmosphere.