Patent ID: 7638714

Claim:
A substrate board being applied to arrange at least one working electronic component, which generates a heat energy when working, also being applied to provide an electrical isolation condition for the working electronic component, and the substrate board comprising: a substrate layer having an arrangement surface and a heat-dissipating surface; a first anodic treatment layer covering the arrangement surface for arranging the electronic working component; a second anodic treatment layer covering the heat-dissipating surface for conducting the heat energy; a heat conduction and electrical isolation layer covering the second anodic treatment layer for conducting the heat energy; and a diamond like carbon (DLC) layer covering the heat conduction and electrical isolation layer for dissipating the heat energy; wherein the heat expansion coefficient of the substrate layer is greater than that of the second anodic treatment layer; the heat expansion coefficient of the second anodic treatment layer is greater than that of the heat conduction and electrical isolation layer; and the heat expansion coefficient of the heat conduction and electrical isolation layer is greater than that of the DLC layer.