Perpendicular magnetic recording (PMR) writer with narrow high moment trailing shield

A perpendicular magnetic recording (PMR) writer, comprising:

• (a) a main pole with a leading side and a trailing side at an air bearing surface (ABS), and two sides that connect the leading side and trailing side and are formed equidistant from a center plane that is orthogonal to the ABS;
• (b) a side shield on each side of the center plane that is separated from one of the MP sides by a side gap, and wherein an inner section of a top surface of each side shield is at a first plane that includes the MP trailing side and a side gap top surface at the ABS;
• (c) a trailing shield structure, comprising;
• (1) a high moment trailing shield (HMTS) having a saturation (Bs) value from 19 kiloGauss (kG) to 24 kG and a first cross-track width (w), and wherein the HMTS has a bottom surface separated from the MP trailing side by a first portion of a write gap (WG) having a first thickness (t1) and width w;
• (2) a first trailing shield (TS) layer having a width w1 where w1 is substantially greater than w, and wherein the first TS layer is formed on a top surface of the HMTS and on a top surface of a second portion of WG where a side of the second WG portion adjoins a side of the first WG portion on each side of the center plane, the second WG portion has a thickness t2 where t2>t1;
• and
• (3) a second TS layer formed on a top surface of the first TS layer, and that contacts an outer section of each side shield top surface at a cross-track distance from ½ w1 from the center plane to a far side of the trailing shield structure, and
• (d) the second WG portion that is formed on a top surface of each inner SS section, and has an outer side that is coplanar with a first TS layer side at the cross-track distance of ½ w1 from the center plane.