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1. 发明授权

US5404635A Method of making a narrow track thin film head 失效
标题翻译：制作窄轨薄膜头的方法
公开(公告)号：US5404635A
公开(公告)日：1995-04-11
申请号：US888350
申请日：1992-05-21
申请人： Shyam C. Das
发明人： Shyam C. Das
IPC分类号： G11B5/31 , G11B5/39 , G11B5/42
CPC分类号： G11B5/3903 , G11B5/3116 , G11B5/3163 , Y10T29/49046
摘要： Process for fabricating a thin film head for high track density recording defines an easy axis parallel to the track in the narrow poletip without a need of a very high magnetic field in the plating cell. Narrow poletips of equal widths of P1 and P2 are obtained. The process includes sheet depositing a magnetic layer, then depositing a sheet of gap material, and then depositing a sheet of another magnetic layer. This operation can be done either by a vacuum technique or by an electroplating process. If it is done by vacuum processing, all the three depositions can be done in one pumpdown. Since the sheet magnetic films are deposited, the demagnetizing field is very small, and a small orienting field is necessary unlike the large field required in the prior art.
摘要翻译：用于制造用于高轨道密度记录的薄膜头的方法限定了在窄波纹中平行于轨道的容易轴，而不需要在电镀单元中具有非常高的磁场。获得相同宽度的P1和P2的窄流路。该方法包括片材沉积磁性层，然后沉积间隙材料片，然后沉积另一层磁性层。该操作可以通过真空技术或电镀工艺进行。如果通过真空处理完成，则所有三个沉积可以在一次抽空中完成。由于片状磁性膜被沉积，所以退磁场非常小，并且与现有技术中所需的大场不同，需要小的定向场。

2. 发明授权

US5778514A Method for forming a transducing head 失效
标题翻译：形成换能头的方法
公开(公告)号：US5778514A
公开(公告)日：1998-07-14
申请号：US384247
申请日：1995-02-06
申请人： Shyam Chandra Das
发明人： Shyam Chandra Das
IPC分类号： G11B5/10 , G11B5/127 , G11B5/17 , G11B5/39
CPC分类号： G11B5/3903 , G11B5/10 , G11B5/1272 , G11B5/1274 , G11B5/17 , Y10T29/49044 , Y10T29/49046
摘要： Metal-in-the-gap (MIG) transducing head formed on a substrate for use in a magnetic storage device for writing and/or reading data in the form of magnetic flux onto and/or from tracks on magnetic media which moves relative to the head, formed by batch processing techniques. In preferred embodiment, MIG head is write head and further includes magnetoresistive read head, all on a common substrate.
摘要翻译：金属间隙（MIG）转换头，其形成在用于磁存储装置中的基板上，用于以磁通量的形式将数据写入和/或从磁介质上的轨迹读取和/ 头，由批处理技术形成。在优选实施例中，MIG头是写头，并且还包括全部在公共衬底上的磁阻读头。

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