Patent ID: 8471363

Claim:
A semiconductor device comprising: a semiconductor substrate having a front surface and a back surface opposite to the front surface, the semiconductor substrate including a first region and a second region located adjacent to the first region; a first conductor; an insulator; and a second conductor, wherein the first region includes a plurality of blind holes, each blind hole having an opening on the front surface and a bottom defined by the back surface, the second region includes a through hole extending through the semiconductor substrate from the front surface to the back surface, a width of each blind hole is less than a width of the through hole, the first conductor includes a first portion located on an inner surface of each blind hole, a second portion located on the first surface around the opening of each blind hole, and a third portion located on an inner surface of the through hole, the insulator includes a first portion located on the first portion of the first conductor, a second portion located on the second portion of the first conductor, and a third portion located on the third portion of the first conductor, the second conductor includes a first portion located on the first portion of the insulator and electrically insulated from the first portion of the first conductor, a second portion located on the second portion of the insulator and electrically insulated from the second portion of the first conductor, and a third portion located on the third portion of the insulator and electrically insulated from the third portion of the first conductor, the first portion and the second portion of the first conductor are joined to form a first single continuous conductor, the first portion and the second portion of the second conductor are joined to form a second single continuous conductor, the first portion and the second portion of the insulator are joined to form a single continuous insulator, the first single continuous conductor, the second single continuous conductor, and the single continuous insulator form a capacitor having a predetermined capacitance, the third portion of the first conductor is electrically connected to the first portion and the second portion of the first conductor so that the first portion and the second portion of the first conductor are drawn through the third portion of the first conductor to the back surface of the semiconductor substrate, and the third portion of the second conductor is electrically connected to the first portion and the second portion of the second conductor so that the first portion and the second portion of the second conductor are drawn through the third portion of the second conductor to the back surface of the semiconductor substrate.