Patent ID: 8432639

Claim:
A PMR head comprising: a pole tip; a monolithic magnetic shield surrounding said pole tip in an ABS plane of said pole tip, wherein said shield forms a trailing edge shield portion having an edge in a cross-track direction and includes two side shield portions projecting from said edge in a direction transverse to said cross-track direction, which is a down-track direction; wherein the two side shield portions of said magnetic shield are formed as two substantially rectangular projections extending in an in-track direction from said edge of said trailing edge shield portion and wherein said projections are laterally disposed symmetrically about said pole tip and separated from each other thereby and, wherein, together with said edge of said trailing edge shield portion, said projections form the shape of a π; wherein said rectangular projections have an aspect ratio of length to width of between approximately 0.5 and 1.0, wherein an easy axis direction of said side shield portions along edges adjacent to said pole tip is in said down-track direction and whereby flux emerging from said side shield portions is also in said down-track direction and, therefore, does not extend laterally to cause unwanted adjacent track erasures.