Patent ID: 6982141

Claim:
A method of manufacturing a semiconductor, comprising: forming a hole in a semiconductor substrate in a front surface of the semiconductor substrate so that the hole extends toward a rear surface of the semiconductor substrate; forming a metal plating over the front surface of the semiconductor substrate and over an inner surface of the hole; applying a photosensitive resin to a front side of the semiconductor substrate at the hole while rotating the semiconductor substrate so as to fill at least a portion of the hole and fully cover an opening of the hole with the photosensitive resin; flattening the photosensitive resin by rotating the semiconductor substrate so as to flatten the photosensitive resin over at least a portion of the front surface of the semiconductor substrate around the hole; grinding the rear surface of the semiconductor substrate until a rear end of the hole is exposed so as to form a via hole through the semiconductor substrate; forming a rear side electrode over the rear surface of the semiconductor substrate; dividing the semiconductor substrate into chips; and connecting a rear side of the divided semiconductor substrate to an assembly substrate with an adhesive metal.