▎ 摘　　要

NOVELTY - The utility model claims a ceramic substrate with high thermal conductivity, comprising a ceramic body, an upper line layer, a lower line layer, an upper graphene heat conducting layer and a lower graphene heat conducting layer; the upper and lower surfaces of the ceramic main body are formed with a conductive hole, the conductive hole is filled with metal to form a conductive column, the upper surface of the ceramic main body is concavely provided with a concave position, the bottom surface of the concave position is provided with multiple heat conducting holes, the plurality of heat conducting holes are downwards penetrated to the lower surface of the ceramic main body, and each heat conducting hole is filled with graphene material to form a heat conducting column; through the plurality of heat conducting holes are filled with graphene material to form a heat conducting column, and matched with the graphene heat conducting layer and the lower graphene heat conducting layer, using characteristics high heat conducting, so that the heat generated by the electronic device set on the upper graphene heat conducting layer can be quickly transferred to the lower graphene heat conducting layer, and then radiating by the external radiator, the radiating effect is better, the radiating requirement of the high power device is completely satisfy