Invention Grant
- Patent Title: Selectable magnetic writers of different target geometries for reducing performance variance
-
Application No.: US14996833Application Date: 2016-01-15
-
Publication No.: US09865301B1Publication Date: 2018-01-09
- Inventor: Kurt Wiesen , Javier Guzman , Joseph Mundenar , Michael Conover
- 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: G11B21/02
- IPC: G11B21/02 ; G11B20/18 ; G11B27/36 ; G11B5/127 ; G11B5/31 ; G11B5/133
Abstract:
A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.
Information query
