PCB Tech - Why use ceramic materials for PCB circuit boards?

Ceramic circuit boards are actually made of electronic ceramic materials and can be made into various shapes. Among them, ceramic circuit boards have high temperature resistance, high electrical insulation properties, outstanding characteristics, low dielectric constant, low dielectric loss, high thermal conductivity, good chemical stability, and similar thermal expansion coefficients of components. Ceramic printed circuit boards are produced using laser rapid activation metallization technology LAM technology. Used in the LED field, high-power semiconductor modules, semiconductor coolers, electronic heaters, power control circuits, power hybrid circuits, smart power components, high-frequency switching power supplies, solid state relays, automotive electronics, communications, aerospace and military electronic components

Different from traditional FR-4 (glass fiber), ceramic materials have good high-frequency performance and electrical properties, as well as high thermal conductivity, chemical stability and thermal stability. Ideal packaging materials for generating large-scale integrated circuits and power electronic modules

Main advantages:

1. High thermal conductivity

2. Very matching thermal expansion coefficient

3. A harder, lower resistance metal film alumina ceramic circuit board

4. The solderability of the base material is good, and the use temperature is high.

5. Good insulation

6. Low frequency loss

7. Assemble with high density

8. It does not contain organic ingredients, is resistant to cosmic rays, has high reliability in aerospace and aerospace, and has a 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.