Patterson & Sheridan, LLP
Helical coils design and process for dual writer magnetic recording
The present disclosure generally relates to a magnetic media drive employing a magnetic recording head. The magnetic recording head comprises a first write head disposed adjacent to a second write head. The first write head comprises a first main pole coupled to a first yoke having a first length. The second write head comprises a second main pole coupled to a second yoke having a second length that is less than the first length of the first yoke. A first coil is wrapped around the first yoke, and a second coil is wrapped around the second yoke. The first coil is wrapped around the first yoke a greater number of times than the second coil is wrapped around the second yoke. Both the first and second coils comprise first portions comprised of a first material and second portions comprised of a second material different than the first material.
WESTERN DIGITAL TECHNOLOGIES, INC.
G
G11B
inventional
Michael Kuok San Zhigang Thao A. Quang Zhanjie
Ho Bai Nguyen Le Li