Graded Bevel Tapered Write Pole Design for Field Enhancement

A perpendicular magnetic write pole for magnetic recording, having an air bearing surface (ABS), comprising:

• A main pole in the form of a first magnetic layer, having a first upper surface and a first planar edge that is normal to said first upper surface, said first planar edge being the ABS;
• on said first magnetic layer, a first non-magnetic layer having a second edge that is symmetrically located between, that is coplanar with, and that fully contacts, said first edge;
• said first non-magnetic layer further comprising a first part that extends from said second edge at an angle between about 10 and 45 degrees as far as said first upper surface and a second part, connected to said first part, that lies on said first upper surface;
• a second non-magnetic layer that is on all of said second part and on all of said first part with the exception of section of said first part that extends for a distance from said second edge;
• and
• a trailing shield that extends upwards from contact with said first and second non-magnetic layers, said trailing shield having an edge that is coplanar with said first and second edges, whereby a write gap exists that is narrower at the ABS and wider away from it, thereby reducing flux leakage from said main pole to said trailing shield and delivering more flux at the ABS.