Invention Grant
- Patent Title: Magnetoresistive head and fabricating method thereof, and read write separation type head
- Patent Title (中): 磁阻头及其制造方法，以及读写分离型头
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Application No.: US11227906Application Date: 2005-09-14
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Publication No.: US07675715B2Publication Date: 2010-03-09
- Inventor: Masatoshi Arasawa , Izuru Ishii , Shuichi Kojima , Naoki Koyama , Norihiro Ookawa
- Applicant: Masatoshi Arasawa , Izuru Ishii , Shuichi Kojima , Naoki Koyama , Norihiro Ookawa
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Townsend and Townsend and Crew LLP
- Agent Rambod Nader
- Priority: JP2004-267910 20040915
- Main IPC: G11B5/33
- IPC: G11B5/33 ; G11B5/127
Abstract:
In one embodiment, a seed layer, an underlayer, and a magnetic domain control layer are laminated on both sides of a magnetoresistive sheet unit. A lower electrode film is thinly formed on an upper portion of the magnetic domain control film. A portion of the lower electrode film near the magnetoresistive sheet unit does not protrude substantially from an upper surface of the magnetoresistive sheet unit. Should the portion protrude, a step from the upper surface of the magnetoresistive sheet unit is about 14 nm or less. This portion and the upper surface of the magnetoresistive sheet unit are formed into a flat surface. An upper electrode film is formed thickly on an upper portion of the lower electrode film on an outside thereof so as to circumvent the flat surface. A protective layer, an upper gap film, and an upper magnetic shield film are also formed.
Public/Granted literature
- US20060056112A1 Magnetoresistive head and fabricating method thereof, and read write separation type head Public/Granted day:2006-03-16
Information query
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