Laser geschnitten aln Keramiksubstrat Kühlkörper

PropertyIndexofAluminumNitrideSubstrates Propertycontent PropertyIndex Thermalconductivity(W/m·k) ≥170Volumeresistivity(Ω·cm) >1013Dielectricconstant[1MHz,25°C]9Dielectricloss[1MHz,25°C] 3.8*10-4Dielectricstrength(KV/mm) 17Density(g/cm3) ≥3.30SurfaceroughnessRa(µm) 0.3 0.5Thermalexpansivity[20°Cto300°C](10-6/°C) 4.6Flexuralstrength(MPa) 320 330Modulusofelasticity(GPa) 310 320Moh’shardness 8Waterabsorption(%) 0Camber( /25(length)) 0.03 0.05Meltingpoint(°C) 2500Appearance/color DarkGray The laser cutaln ceramicsubstratehashighthermalconductivityofmorethan170W/m.k, highdensity,lowdielectricloss,goodinsulationandsomeotherexcellentproperties. TheALNsubstrateisthebestchoiceforawiderangeofindustrialinsulatingheatsinkmaterialofhigh powermachineryandequipmentssuchashighfrequencyequipmentsubstrate,highpowertransistor modulesubstrate,highdensityhybridcircuits,microwavepowerdevices,powersemiconductordevices, powerelectronicdevices,optoelectroniccomponents,lasersemiconductor,LED,ICproducts,andsoon. Surfaceroughnesscanbereachedwithin0.1µmafterbeingpolished.Sizetolerancecanbecontrolled ataround±0.1mmbylasermachine. Differentdimensionandthicknessareavailablevialasercuttingorcustomize.