| abstract |
A metal resin composite includes a first member made of thermally conductive resin composition and a second member made of metal. The second member includes recesses having a number average inner diameter of 1 to 200 nm formed by a surface treatment. The first and second members are joined by injection molding the thermally conductive resin composition onto the second member. The thermally conductive resin composition has a thermal conductivity of 1 W/(m·K) or more in a surface direction, and includes a thermoplastic resin and an inorganic filler that is either inorganic particles having a thermal conductivity of 2 W/(m·K) or more and a volume average particle diameter of 1 to 700 μm, or inorganic fibers having a thermal conductivity of 1 W/(m·K) or more, a number average fiber diameter of 1 to 50 μm, and a number average fiber length of 6 mm or less. |