发明授权
- 专利标题: Magnetic write element having a thermally dissipative structure
- 专利标题(中): 具有热耗散结构的磁写元件
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申请号: US09379892申请日: 1999-08-23
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公开(公告)号: US06396660B1公开(公告)日: 2002-05-28
- 发明人: William Jensen , Mark David Thomas , Zhupei Shi , Billy W. Crue, Jr.
- 申请人: William Jensen , Mark David Thomas , Zhupei Shi , Billy W. Crue, Jr.
- 主分类号: G11B531
- IPC分类号: G11B531
摘要:
A magnetic read/write head having improved thermal characteristics. The read/write head includes a read element and a write element formed there over. The read element includes a read sensor embedded within a dielectric material and sandwiched between first and second shields. The write element includes first and second poles joined to form a yoke. The yoke is closed at one end and defines a write gap at the other. A coil having windings which extend through the yoke generates a magnetic flux within the yoke. This magnetic flux causes a magnetic fringe field at the location of the write gap, the fringe field being capable of imparting a magnetic signal onto a passing magnetic medium. The coil sits atop a thermally conductive, electrically insulating material which electrically isolates the coil from surrounding structure. When a current flows through the coil, heat will be generated. Such heat, which could be detrimental to read performance, is conducted through the thermally conductive material out of the yoke and away from the write element. The thermally conductive material provides a large heat sink for dissipation of the heat.
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