LED heat-dissipation ceramic substrate: LED Al2O3 thin film substrate LED Al2O3 thick film substrate Ceramic DPC/DBC Materials: Al2O3, AlN Coating matel and circuit diagram for any drawing Metal: any such as Cu,Ni,Au.... Ceramic metallized: Ti/W,gold(Au), sliver(Ag),Copper(Cu),nickel(Ni)others & produce final circuitcoating:0.03um to 5milCeramic Metallized substrate:Al2O3 substrate metallizedAlN ...