Headway Technologies, Incorporated

Alain Truong

Tobias Maletzky

Yoshitaka Sasaki

Hiroyuki Ito

Min Li

Shigeki Tanemura

Hironori Araki

Kazuki Sato

Tetsuya Roppongi

Yuhui Tang

Yue Liu

Ying Liu

Wenyu Chen

Weihao Xu

Tetsuhito Shinohara

Yoji Nomura

Bogdan Florin Valcu

The present embodiments relate to a thermally-assisted magnetic recording (TAMR) head. A magnetic assist current can be applied to the TAMR head to assist in reducing timing jitter as the TAMR head interacts with a magnetic recording material. The TAMR head can include a main write pole including a tip portion and configured to direct a magnetic field for interacting with a magnetic recording medium. The TAMR head can include a laser diode to heat the magnetic recording medium and a dynamic fly height (DFH) heating element for dynamically controlling a height of the main write pole. The heating element can be of a parallel bias circuit that directs a direct current (DC) bias current flow along an electrical path from the magnetic yoke element to the tip portion of the main write pole adjacent to an air bearing surface (ABS).

Thermally-assisted magnetic recording (TAMR) head with magnetic assist current

A magnetic head includes a medium facing surface, a main pole, a trailing shield, and a spin torque oscillator. A bottom surface of the trailing shield includes a first portion that includes an end located in the medium facing surface and is in contact with the spin torque oscillator at least in part. An element height that is a dimension of the spin torque oscillator in a direction perpendicular to the medium facing surface and a writer height that is a dimension of the first portion in the direction perpendicular to the medium facing surface are different from each other.

Magnetic head including spin torque oscillator

A write head configured for thermally assisted magnetic recording (TAMR) has a split-yoke design that allows the yoke and magnetic pole to be formed as planar layers while the split between left and right-side portions of the yoke and magnetic pole eliminate adverse coupling between the magnetic writing field and the optical near-field heating field. The planar design is easy to fabricate and provides rapid rise time and a strong magnetic field using fewer current-carrying coils than in the prior art.

Split yoke design for high data rate TAMR writer head structure

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Milpitas, CA, United States of America

Alain Truong