Ceramic Substrates--cs ceramic

Al2O3 ( Alumina substrate ) , AlN ( Aluminum Nitride substrate ) and
ZrO2 (Zirconia substrate ) . These ceramic substrate have good mechanical
strength and abrasion resistance, high thermal conductivity , very stable in
high temperature and corrosive chemical and excellent electrical insulation .

1. Alumina ( Al2O3 substrate ) Al2O3 substrate is the most popular ceramic substrate, with excellent heat  resistance, high mechnical strength , abrasion resistance and small dielectric loss .The surface of alumina substrate is quite smooth and low porosity , 99.6% alumina substrate is suitable for thin film device , 96% alumina substrate is suitable for thick film device application .

2. Aluminium Nitride ( AlN substrate ) Aluminium Nitride has higher thermal conductivity , compared to alumina substrate It is about 7 to 8 times high . AlN substrate is an excellent electronic package material .

3. Zirconia ( ZrO2 substrate ) Compared to alumina substrate , ZrO2 substrate has higher mechanical strength and fracture toughness it's about three times higher for bending strength, two times for fracture toughness than alumina substrate . ZrO2  ( zirconia ) also provides good abrasion resistance. It features a thermal expansion rate close to metals .

Ceramic Substrates Porperties Materials Al2O3 AlN ZrO2 96% 99.6% Color White White Gray White Density (g/cm 3 ) 3.72 3.85 3.3 6.04 Thermal conductivity (W/m. K) 22.3 29.5 160 -190 2.4 Thermal Expansion (x10 -6 / o C) 8.0 8.2 4.6 10 Dielectric strength 14E6 18E6 14E6   Dielectric Constant (at 1MHZ) 9.5 9.8 8.7 29 Loss Tangent (x10 -4 @1MHZ) 3 2 5 1E-3 Volume Resistivity (ohm-m) >10 14 >10 14 >10 14   Flexural Strength (N/mm 2 ) 350 500 450

.

Superior quality of products with reliance is our prime consideration.

Feel free to contact us if you need any other assistance about our products .   Contact :sale@csceramic.com