Patent ID: 7239479

Claim:
A thin film magnetic head with a write element, wherein: the write element comprises a first yoke portion, a second yoke portion, a first pole portion, a second pole portion, a gap film, a back gap portion and a coil; the first yoke portion is connected to the second yoke portion by the back gap portion in the opposite side in relation to a medium-facing surface side; the first pole portion and the second pole portion are disposed in the medium-facing surface side of the first yoke portion and the second yoke portion respectively; the first pole portion includes a trimmed portion in such a position that the trimmed portion faces the second pole portion in the medium-facing surface side, and the trimmed portion has a reduced width to fit the second pole portion; the second pole portion has a reduced width in the medium-facing surface side; the gap film is disposed between the first pole portion and the second pole portion and includes a non-magnetic metal film or an inorganic insulating film that extends from the medium-facing surface side and covers one surface of the coil facing the second pole portion; the coil surrounds in a spiral form the back gap portion; and the first pole portion includes an extending portion that extends so as to cover the one surface of the coil facing the second pole portion.