Patent ID: 7026699

Claim:
A semiconductor device, comprising: a semiconductor chip provided with a circuit element; a coil provided on an upper side of said semiconductor chip, which is packaged with a dimension effectively the same as an outer dimension of said semiconductor chip; and a magnetic body provided on an upper side of said semiconductor chip, and surrounded by said coil, wherein said magnetic body extends in a direction perpendicular to a main surface of said semiconductor chip, and said coil comprises a first conductive part and second conductive part provided so as to surround said magnetic body, on a first plane and a second plane which are separated parallel to each other, in an extension direction of said magnetic body, and a connection part which electrically connects the one ends of said first conductive part and said second conductive part, and said first conductive part, said second conductive part, and said connection part form a substantially spiral shaped conductive path.