▎ 摘　　要

NOVELTY - A graphene/silicon nitride/silicon composite material consists of silicon wafer as base material, compact silicon-nitride insulation layer formed on silicon wafer, and graphene layer containing graphene composite material formed on silicon nitride insulation layer. The graphene composite material contains copper, aluminum, silicon carbide, copper tungstate, copper molybdate, carbon nanotube and graphite. USE - Graphene/silicon nitride/silicon composite material is used as heat sink material in heat-radiation apparatus (claimed). ADVANTAGE - The graphene/silicon nitride/silicon composite material has excellent heat-radiation effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of graphene/silicon nitride/silicon composite material.