Invention Grant
- Patent Title: Read head free layer having front and rear portions biased at different levels
-
Application No.: US14927696Application Date: 2015-10-30
-
Publication No.: US09886974B2Publication Date: 2018-02-06
- Inventor: Scott Wilson Stokes , Victor Boris Sapozhnikov
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Westman, Champlin & Koehler, P.A.
- Main IPC: G11B5/39
- IPC: G11B5/39 ; G11B5/60 ; G11B5/147 ; G11B5/11
Abstract:
A reader having a bearing surface, a free layer, and a free layer biasing structure. The free layer biasing structure includes at least one side shield that applies a first bias field level to a front portion of the free layer that is nearest to the bearing surface and applies a second bias field level to a rear portion of the free layer that is farthest from the bearing surface. The second bias field level is greater than the first bias field level.
Public/Granted literature
- US20170125046A1 READ HEAD FREE LAYER HAVING FRONT AND REAR PORTIONS BIASED AT DIFFERENT LEVELS Public/Granted day:2017-05-04
Information query
IPC分类:
