Oliff PLC
Magnetic head for perpendicular magnetic recording that includes a sensor for detecting contact with a recording medium
A magnetic head for perpendicular magnetic recording includes a read head unit, a write head unit disposed forward of the read head unit along the direction of travel of a recording medium, a heater that generates heat for causing the medium facing surface to protrude in part, an expansion layer that makes part of the medium facing surface protrude, and a sensor that detects contact of the part of the medium facing surface with the recording medium. The write head unit includes a main pole, a write shield, and a return path section. The return path section includes a yoke layer located backward of the main pole along the direction of travel of the recording medium, a first coupling part that couples the yoke layer and the write shield to each other, and a second coupling part that is located away from the medium facing surface and couples the yoke layer and the main pole to each other.
HEADWAY TECHNOLOGIES, INC. SAE MAGNETICS (H.K.) LTD.
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Kazuki Atsushi Yoshitaka Hiroyuki
Sato Iijima Sasaki Ito