Write head with floating side shields and enhanced magnetic potential

Patent metadata

Field	Value
Publication number	US-8995086-B2
Application number	US-201313733300-A
Country	US
Kind code	B2
Filing date	Jan 3, 2013
Priority date	Jul 8, 2005
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

A write head has a pole tip, a write yoke connected to the pole tip, a write return yoke, a write shield, and one or more side shields disposed in close proximity to the pole tip. The write return yoke connects to the write yoke on one end and the write shield on a different end. The one or more side shields are separated from the pole tip and write shields by a non-magnetic material and therefore are “floating” and not directly coupled to the write shield or pole tip.

First claim

What is claimed is:

1. A write head for a disk drive comprising:
a pole tip;
a write yoke connected to the pole tip;
a write return yoke, wherein the write yoke connects to a first end of the write return yoke;
a write shield connected to a second end of the write return yoke different from the first end, and the write shield separated from the pole tip by a write gap distance; and
one or more side shields disposed in close proximity to the pole tip;
wherein each of the…

Assignees

• Seagate Technology Llc

Inventors

• Benakli Mourad
• Mallary Michael

Classifications

• G11B5/3116 Primary

  Physics · mapped topic

• G11B5/11 Primary

  Physics · mapped topic

• Y10T29/4906

  Cross-Sectional Technologies · mapped topic

• Y10T29/49044

  Cross-Sectional Technologies · mapped topic

• G11B5/1278

  Physics · mapped topic