Patent ID: 8542463

Claim:
A PMR writer for shingle writing, comprising: (a) a write pole formed along an air bearing surface (ABS) with a leading edge and trailing edge formed parallel to a top surface of a substrate, and having two sides wherein each side intersects the trailing edge at a corner; (b) a write gap formed on the trailing edge and having a non-planar top surface, comprising: (1) a first end section formed parallel to the trailing edge and aligned above a portion of the write pole including a first corner; (2) a second end section formed parallel to the trailing edge and aligned above a portion of the write pole including a second corner; and (3) a convex curved shaped center section in the form of a single arc connecting the first and second end sections and wherein the center section is formed a greater distance from the trailing edge than the first and second end sections such that a variable first thickness of the write gap below the center section is greater than a fixed second thickness below the first and second end sections; (c) a side gap that adjoins each side of the write pole and having a side formed substantially parallel to a nearest side of the write pole and located a gap distance therefrom; (d) a side shield that adjoins said side of each side gap and interfaces with an overlying trailing shield; and (e) the trailing shield that adjoins a top surface of each side shield and is formed on the top surface of the write gap.