Patent ID: 8830623

Claim:
A magnetic head, comprising: a main magnetic pole having a leading edge positioned at a leading-most point of the main magnetic pole in a down-track direction and a trailing edge positioned at a trailing-most point of the main magnetic pole in the down-track direction; a trailing shield positioned on a trailing side of the main magnetic pole; a trailing gap positioned between the trailing shield and the main magnetic pole; side shields positioned on either side of the main magnetic pole in a cross-track direction; side gaps positioned between the side shields and the main magnetic pole on either side of the main magnetic pole in the cross-track direction, wherein the side gaps each have width in the cross-track direction that is constant along an entire length of the main pole in the down-track direction from the leading edge to the trailing edge thereof; a leading gap positioned on a leading side of the main magnetic pole that directly contacts the side gaps; and trailing shield (TS) gaps positioned on either side of the main magnetic pole in the cross-track direction between the trailing shield and the side shields, wherein the TS gaps extend beyond the side gaps in a direction parallel to the cross-track direction, wherein an angle (θ) between a tangent line consistent with an edge of the TS gap on a side shield side of the TS gap near the trailing shield and a line parallel to the track-width direction is in a range of 5°<θ<60°.