Patent ID: 11862205
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A magnetic recording head, comprising:
a main pole;
a trailing shield disposed adjacent to the main pole; and
a spintronic device disposed between the main pole and the trailing shield, the spintronic device comprising:
a first spacer layer disposed adjacent to the trailing shield;
a spin torque layer disposed in contact with the first spacer layer;
a multilayer seed layer disposed in contact with the spin torque layer and the main pole, the multilayer seed layer comprising a high etch rate layer, a heat dissipation layer disposed in contact with the high etch rate layer, and a cooling layer disposed in contact with the heat dissipation layer and the main pole;
a NiAl layer disposed in contact with the spin torque layer;
a Ru layer disposed in contact with the NiAl layer; and
a NiFeTa layer disposed in contact with the Ru layer and the high etch rate layer.