Patent ID: 11862207
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A magnetic recording head, comprising:
a trailing shield;
a main pole; and
a stack disposed between the trailing shield and the main pole at a media facing surface, wherein the stack comprises at least a layer having a surface facing the main pole, wherein the surface has a first side at the media facing surface and a second side opposite the first side, wherein the stack consists essentially of:
a seed layer contacting the main pole;
a magnetic layer contacting the seed layer; and
a spacer layer contacting the magnetic layer, wherein the spacer layer contacts a notch and wherein the notch comprises a magnetic material, wherein the main pole has:
a first track width at the media facing surface, the first track width being less than a length of the first side of the surface,
a second track width adjacent to the second side of the surface, the second track width being greater than the first track width, and
a third track width that is substantially equal to a length of the surface at a location disposed between the first and second sides of the surface.