| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat radiation member which is excellent in bonding strength between metal layers and a graphite layer, has a thin adhesion layer, and achieves excellent heat radiation performance.SOLUTION: A heat radiation member comprises a laminated body 1 formed by laminating metal layers 2, 6 and a graphite layer 4 through adhesion layers 3 and 5. Surfaces contacting with the adhesin layers, from among the metal layers, are subject to roughening treatment and a thickness (t) of each adhesive layer is equivalent to a surface roughness (Rz) of the metal layer. The surface of each metal layer, which contacts with the adhesion layer, is subject to the roughening treatment. The adhesive layer is attached to dents of irregularities occurring after the roughening treatment, thereby achieving good bonding strength even if each adhesion layer is thin. |
