| 摘要 |
PURPOSE:To lower the wiring impedance of a power circuit, and to eliminate a bypass capacitor. CONSTITUTION:An electrical part, etc., are mounted on the surface of a first conductive layer 1, and a signal circuit is printed-wired to the first conductive layer, a power circuit to a second conductive layer 3 while holding an insulating layer 2, a ground to a third conductive layer while holding a dielectric layer 4 and a signal circuit to a fourth conductive layer while holding an insulating layer 6 respectively. A dielectric material having high insulating properties and a large dielectric constant is used as the dielectric material of the dielectric layer 4. |
