Such unpolished Aluminum Nitride can be placed in the center of holder for holding test samples up to 3" or 5" diam. The excellent temperature uniformity can be achieved in this 3" or 5" diam. area due to the benefit from its high thermal conductivity. Aluminum Nitride Ceramic Substrates Properties Item No. AIN-Holder Purity (wt%) 99% (AN5116) Density (g/cm3) >3.26 Thermal Conductivity (W/m. K) >170 Thermal Expansion (x10-6/oC) 15 Dielectric Constant (at 1MHZ) 8.7 Loss Tangent (x104@1 MHz) 3 - 7 Volume Resistivity (ohm-cm) >1014 Flexural Strength (Kgf/mm) >30 Substrate Specifications 3" or 5" diameter, 0.65mm thicknesssurface: fine ground Product Configuration The unpolished AIN in the center of holder is able to hold test samples up to 3" or 5" diam.
