Patent · US Active

Scissor reader with side shield decoupled from bias material

US9230576B1 · kind B1 · utility

15Cited by

13References

8Claims

0Family size

Assignee

HGST Netherlands, B.V. · NL

Inventors

Hardayal Singh Gill · Palo Alto, US
Shiwen Huang · Fremont, US
Quang Le · San Jose, US
Guangli Liu · Pleasanton, US
Xiaoyong Liu · San Jose, US
Suping Song · Fremont, US

Key dates

Filing date	Sep 8, 2014
Grant date	Jan 5, 2016
Priority date	—
Expiry date	Sep 8, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG11B2005/3996
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.