公开(公告)号：US09230576B1

公开(公告)日：2016-01-05

申请号：US14479767

申请日：2014-09-08

Applicant: HGST Netherlands B.V.

Inventor： Hardayal Singh Gill ,  Shiwen Huang ,  Quang Le ,  Guangli Liu ,  Xiaoyong Liu ,  Suping Song

IPC: G11B5/39 ,  G11B5/31 ,  G11B5/11

CPC classification number: G11B5/3912 ,  G11B5/11 ,  G11B5/3146 ,  G11B5/39 ,  G11B5/3932 ,  G11B5/398 ,  G11B2005/3996

Abstract: Embodiments disclosed herein generally relate to a magnetic head having a sensor stack and a bias material that is aligned in a direction perpendicular to a media facing surface. The sensor stack and a first portion of the bias material are laterally bookended by synthetic antiferromagnetic (SAF) structures, and a second portion of the bias material is laterally bookended by a dielectric material. In this configuration, the SAF structures are decoupled from the bias material, which minimizes the disturbance to the bias material.

Abstract translation: 本文公开的实施例通常涉及具有传感器堆叠和偏置材料的磁头，所述传感器堆叠和偏置材料在垂直于介质面向表面的方向上排列。 传感器堆叠和偏置材料的第一部分由合成的反铁磁（SAF）结构横向书签，并且偏置材料的第二部分由电介质材料横向书签。 在这种配置中，SAF结构与偏置材料去耦合，从而最小化对偏置材料的干扰。