公开(公告)号：US20250006223A1

公开(公告)日：2025-01-02

申请号：US18230048

申请日：2023-08-03

Applicant: Western Digital Technologies, Inc.

Inventor： Robert G. BISKEBORN ,  David J. SEAGLE ,  Diane L. BROWN ,  Trevor W. OLSON

IPC: G11B5/55

Abstract: The present disclosure generally relates to a tape drive comprising one or more tape head modules. Each tape head module comprises 65 data elements disposed in a first row, each data element being a write element or a read element, and at least 5 servo element pairs disposed in a second row, the second row being disposed parallel to the first row. The second row is spaced a distance in a first direction from the first row. One or more data elements and one or more servo element pairs may be unwired and non-operable. The tape drive may comprise three tape head modules, where the second tape head module is disposed between the first and third tape head modules. Each data element of the first tape head module and the third tape head module are write elements, and each data element of the second module is a read element.

公开(公告)号：US20230223043A1

公开(公告)日：2023-07-13

申请号：US17647809

申请日：2022-01-12

Applicant: Western Digital Technologies, Inc.

Inventor： Quang LE ,  Hongquan JIANG ,  Cherngye HWANG ,  David J. SEAGLE ,  Xiaoyong LIU

IPC: G11B5/11 ,  G11B5/31

CPC classification number: G11B5/11 ,  G11B5/3133

Abstract: The present disclosure generally relates to a tape head of a tape drive, and methods of forming thereof. In one embodiment, a tape head for magnetic storage devices comprises a trailing shield, a leading shield, a first write pole coupled to the trailing shield, a second write pole coupled to the leading shield, and side shields spaced from the first write pole and the second write pole by a thin insulation layer. The side shields are further disposed between the trailing shield and the leading shield. In another embodiment, a tape head for magnetic storage devices comprises a main pole disposed between a trailing shield and a leading shield and a side shield disposed adjacent to the main pole. The side shield is further disposed between the trailing shield and the leading shield and spaced from the main pole by a thin insulation layer.

公开(公告)号：US20200381014A1

公开(公告)日：2020-12-03

申请号：US16997701

申请日：2020-08-19

Applicant: Western Digital Technologies, Inc.

Inventor： David J. SEAGLE

IPC: G11B5/55 ,  G11B5/187 ,  G11B5/008

Abstract: The present disclosure generally relates to tape heads for use in a tape drive system. The tape head includes a plurality of servo elements and a plurality of data elements disposed between the servo elements. An electrostrictive material is present in the tape head. Electrodes are coupled to the electrostrictive material to permit a voltage to be distributed across the electrostrictive material. The voltage causes the electrostrictive material to expand, and thus expand the tape head. By expanding the tape head by adding voltage, or contracting the tape head by lowering voltage, the spacing between adjacent data elements can be adjusted to match the spacing between adjacent data tracks on a tape.