Oliff PLC
Magnetic head for perpendicular magnetic recording with a trailing shield including a plurality of portions different in saturation flux density
A magnetic head includes a main pole, a write shield, and a gap section. The write shield includes a trailing shield. The trailing shield includes a first portion, a second portion, a third portion and a fourth portion. The second portion and the third portion are located on opposite sides of the first portion in the track width direction. Top surfaces of the first to third portions are coplanar with each other. The fourth portion lies on the top surfaces of the first to third portions. The first portion is higher in saturation flux density than the second to fourth portions.
HEADWAY TECHNOLOGIES, INC.
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Shigeki Yukinori Kazuki Yoshitaka Hiroyuki Kazumasa
Tanemura Ikegawa Sato Sasaki Ito Yasuda