Invention Grant
US09053721B1 Magnetic read sensor with independently extended pinned layer and seed layer
有权
磁读取传感器，具有独立扩展的钉扎层和种子层
- Patent Title: Magnetic read sensor with independently extended pinned layer and seed layer
- Patent Title (中): 磁读取传感器，具有独立扩展的钉扎层和种子层
-
Application No.: US14292760Application Date: 2014-05-30
-
Publication No.: US09053721B1Publication Date: 2015-06-09
- Inventor: Yongchul Ahn , David P. Druist , Zheng Gao , Ying Hong , Yunhe Huang , Quang Le , Thomas L. Leong , Guangli Liu , Xiaoyong Liu , David J. Seagle
- Applicant: HGST Netherlands B.V.
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC
- Main IPC: G11B5/39
- IPC: G11B5/39 ; G11B5/33 ; G11B5/127
Abstract:
A magnetic read sensor having a magnetic seed layer, a pinned layer structure formed over the magnetic seed layer, a non-magnetic barrier or spacer layer formed over the pinned layer structure and a magnetic free layer structure formed over the non-magnetic barrier or spacer layer. The pinned layer has a stripe height (measured from the media facing surface) that is greater than a stripe height of the magnetic free layer structure. In addition, the magnetic seed layer structure has a stripe height (also measured from the media facing surface) that is greater than the stripe height of the magnetic pinned layer structure and the magnetic free layer structure. The stripe height of the magnetic seed layer structure can be controlled independently of the stripe heights of the magnetic pinned layer structure and the magnetic free layer structure.
Information query
IPC分类:
