Western Digital (fremont), Inc.

Ruisheng Liu

Haiwen Xi

Shaoping Li

Ming Mao

Gerardo Bertero

Qunwen Leng

Steven C Rudy

Christopher L Beaudry

Shihai He

Zhihong Zhang

Zhipeng Li

Haifeng Wang

Jianxin Fang

Yingbo Zhang

A magnetic read apparatus has a media-facing surface (MFS) and includes a read sensor, a magnetic bias structure and an insulating layer. The read sensor has a side, a front occupying part of the MFS and a back. The read sensor includes a free layer, a pinned layer and a barrier layer between the free and pinned layers. The barrier layer has a barrier layer coefficient of thermal expansion. The magnetic bias structure is adjacent to the side of the free layer. The insulating layer includes first and second portions. The first portion of the insulating layer is between the read sensor side and the magnetic bias structure. The second portion of the insulating layer adjoins the read sensor back. The insulating layer has an insulating layer coefficient of thermal expansion that is at least &#x2153; of and not more than 5/3 of the barrier layer coefficient of thermal expansion.

Read sensor having an insulating layer capable of use in two-dimensional magnetic recording

Growing community of inventors

San Jose, CA, United States of America

Ruisheng Liu