Patent ID: 8023249
Filing Date: 2011-09-20
Classification: H01G,Y10T

Abstract:
1. A capacitor comprising: a pair of conductive layers that are opposed to each other at a determinable interval; a dielectric layer that is an anodic metal oxide interposed between the pair of conductive layers; a plurality of first electrodes that are disposed in some of a plurality of holes passing through the dielectric layer in a direction substantially or nearly perpendicular to the pair of conductive layers, and have respective one end portions which are electrically connected to one of the conductive layers and respective another end portions which are insulated from another of the conductive layers; and a plurality of second electrodes that are disposed in substantially all other of the plurality of holes other than the some of the plurality of holes, and have respective one end portions which are electrically connected to the another of the conductive layers and respective another end portions which are insulated from the one of the conductive layers, wherein the individual first electrodes and the individual second electrodes have a diameter of several 10 nm to several 100 nm and are randomly distributed throughout the entire dielectric layer as viewed in the direction substantially or nearly perpendicular to the pair of conductive layers.