Invention Grant
- Patent Title: Thermally-assisted magnetic recording head, head gimbals assembly, head arm assembly, and magnetic disk unit
- Patent Title (中): 热辅助磁记录头，头架万向节组件，头臂组件和磁盘单元
-
Application No.: US13397041Application Date: 2012-02-15
-
Publication No.: US08363515B1Publication Date: 2013-01-29
- Inventor: Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi , Kosuke Tanaka
- Applicant: Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi , Kosuke Tanaka
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Main IPC: G11B11/00
- IPC: G11B11/00
Abstract:
The thermally-assisted magnetic recording head includes: a magnetic pole; a waveguide propagating light in a first direction, the first direction intersecting with an air bearing surface; a plasmon generator having a base and a projection, the base having a surface, and the projection having a top, standing partially on the surface of the base and extending in the first direction. The plasmon generator has a first portion and a second portion, and the first portion and the second portion are provided in this order from the air bearing surface in a direction away from the air bearing surface. Herein, the top of the projection and the surface of the base in the first portion define a first step, and the top of the projection and the surface of the base in the second portion define a second step. The first step is larger than the second step.
Information query
IPC分类:
