发明申请
- 专利标题： Magnetic recording head for perpendicular recording with wrap around shield, the fabrication process and magnetic disk storage apparatus mounting the magnetic head
- 专利标题（中）： 用于垂直记录的磁记录头，包围屏蔽，制造过程和安装磁头的磁盘存储装置
-
申请号： US11254138申请日： 2005-10-18
-
公开(公告)号： US20060082924A1公开(公告)日： 2006-04-20
- 发明人: Kimitoshi Etoh , Masafumi Mochizuki , Isao Nunokawa , Tomohiro Okada
- 申请人： Kimitoshi Etoh , Masafumi Mochizuki , Isao Nunokawa , Tomohiro Okada
- 申请人地址： NL Amsterdam
- 专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 优先权： JPJP2004-305843 20041020
- 主分类号： G11B5/127
- IPC分类号： G11B5/127
摘要：
Embodiments of the invention are directed to narrowing a read/write gap of a perpendicular magnetic head by applying a wrap around shield, data erasing from return pole edges by returning recording field, and reducing TPR of a magnetic material. In one embodiment, the wrap around shields are formed by partitioning and making Gd, which is the height of the shield at the main pole side in the sensor height direction, smaller than the height of the shield connected to the return pole in the sensor height direction.