Cu-AlN & Al-AlN Substrates

Cu-AlN AMB Advantages of DOWA’s substrates: Super - CMC
High ceramic bending strength
X 500 MPa @ 0.635 mm AlN
650 MPa @ 0.635 mm AlN X
X High thermal conductivity X
AlN ceramic (Typ. 170 – 190 W/mK @ 20 °C)
Very high partial discharge properties
Typ. PD ≤ 10 pC @ 9kVrms; 0.635 mm AlN X
Low substrate bow
X Metallization during batch process
Excellent bonding area
X Cu-ceramic > 95%
Al-ceramic > 97% X
High heat cycle toughness
X > 1.000 cycles @ -40/+125 °C
> 3.000 cycles @ -40/+125 °C X
Very good wire bonding
Al-Al-wire bonding X
Reduced weight
Lighter than DCB- or AMB substrates X