| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fine power supply division pattern with a degree of freedom in designing which can implement division of a power supply layer into a plurality of power supply layers by patterning. <P>SOLUTION: A substrate 20 with a built-in capacitor which accommodates multiple power supply systems has a section for separating a positive electrode and a negative electrode, which consists of a first insulation layer 23, in part of a valve action metal 21 including a porous portion, at least on the surface of which an organic polymer dielectric layer 22 is formed. The substrate has a solid-state electrolytic layer 25 formed of a conductive polymer on the dielectric layer defined by the shape of the section for separating a positive electrode and a negative electrode, and also has a collector layer 26 on the solid-state electrolytic layer. In the substrate, a metal interconnection pattern to be connected to the collector layer is formed. The metal interconnection pattern is electrically divided into a plurality of power supply layers by patterning. <P>COPYRIGHT: (C)2010,JPO&INPIT |
