◪ Higher operating temperatures up to 350℃
◪ Low expansion coefficient
◪ Good thermal performance
◪ Superior high-frequency performance
◪ Reduce costs for testing, insertion and assembly
◪ Smaller package size
◪ Sealed packaging with a water absorption rate of 0%
Rocket PCB specializes in alumina (Al2O3) and aluminum nitride(AlN) boards, applying the thick film and the technology of direct bonding copper (DBC) and Direct copper Plating (DPC) to printed circuits.
Alumina (Al2O3) is widely used with its low cost. However, it is not a very good thermal conductor (24-28 W/MK), but it is still better than most metalcore PCB, because it does not require a dielectric layer between the circuit and the core. If needed, the through-hole filled with silver (Ag) can still improve thermal performance.
The board made of alumina is usually thicker (0.5mm-1.5mm) and alumina can be processed to be transparent.
Aluminum nitride (AlN) has better thermal property (> 170 w/MK) but is also more expensive. And its thermal performance can be further improved by AG or AU trace and through-holes.
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