Ceramic substrate refers to a special process board in which copper foil is directly bonded on the surface (single surface or double surface) of alumina (Al2O3) or aluminum nitride (AlN) ceramic substrate at high temperature. The ultra-thin composite substrate has excellent electrical insulation, high thermal conductivity, excellent solderability and high adhesive strength, can etch various patterns like a PCB, and has great current carrying capacity.
Only a few manufacturers enjoy a good reputation in ceramic substrates. I know Slayton, Chang Kai Dodd and Tong Xin. Shenzhen enjoys a high reputation as a manufacturer of ceramic substrates. I know that Leighton has an office in Shenzhen. The specific situation can be asked!