Invention Grant
- Patent Title: Magnetic head for perpendicular magnetic recording including a main pole with a lower protrusion
- Patent Title (中): 用于垂直磁记录的磁头，包括具有下凸起的主极
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Application No.: US14567590Application Date: 2014-12-11
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Publication No.: US09336798B1Publication Date: 2016-05-10
- Inventor: Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Yukinori Ikegawa
- Applicant: Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Yukinori Ikegawa
- Applicant Address: US CA Milpitas
- Assignee: HEADWAY TECHNOLOGIES, INC.
- Current Assignee: HEADWAY TECHNOLOGIES, INC.
- Current Assignee Address: US CA Milpitas
- Agency: Oliff PLC
- Main IPC: G11B5/187
- IPC: G11B5/187 ; G11B5/127 ; G11B5/17 ; G11B5/31
Abstract:
A main pole includes a main body and a lower protrusion. The lower protrusion is located at a distance from a medium facing surface. The main body includes a front portion and a rear portion. The front portion has a first side surface and a second side surface. The lower protrusion has a third side surface and a fourth side surface. A first side shield has a first sidewall opposed to the first side surface. A second side shield has a second sidewall opposed to the second side surface. A bottom shield includes a receiving section. The receiving section has a third sidewall opposed to the third side surface, and a fourth sidewall opposed to the fourth side surface. The receiving section and the lower protrusion are formed in a self-aligned manner by using the first and second side shields.
Information query
IPC分类:
