Patent ID: 9082548
Filing Date: 2015-07-14
Classification: H01G

Abstract:
1. A porous capacitor comprising: a first conductor layer; a second conductor layer opposed to the first conductor layer at a certain distance; a dielectric layer disposed between the first conductor layer and the second conductor layer, the dielectric layer being made of an oxidized valve metal and having a large number of holes substantially orthogonal to the first conductor layer and the second conductor layer; first electrodes made of a conductive material filled in at least part of the large number of holes, the first electrodes being electrically connected to the first conductor layer and insulated from the second conductor layer via void spaces between insulated ends of the first electrode and the second conductor layer, with levels of the insulated ends of the first electrodes being uneven with each other within a certain range; and second electrodes made of a conductive material filled in at least part of the large number of holes, the second electrodes being electrically connected to the second conductor layer and insulated from the first conductor layer, wherein the first conductor layer is configured to vary an electrical resistivity at the end of each of the holes on the first conductor layer.