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1. 发明授权

US06683749B2 Magnetic transducer having inverted write element with zero delta in pole tip width 有权
标题翻译：具有反向写入元件的磁性传感器，磁极尖端宽度为零
公开(公告)号：US06683749B2
公开(公告)日：2004-01-27
申请号：US10034903
申请日：2001-12-19
申请人： Larry E. Daby , James C. Cates , John P. Biesecker
发明人： Larry E. Daby , James C. Cates , John P. Biesecker
IPC分类号： G11B531
CPC分类号： G11B5/3116 , G11B5/02 , G11B5/187 , G11B5/1871 , G11B5/313 , G11B5/3163 , Y10T29/49046 , Y10T29/49052
摘要： A method of fabrication and a magnetic transducer having an inverted write element with a zero delta in pole tip width to provide improved bi-directional control over write track width and written erase bands on media. The transducer includes a top pole and a bottom pole configured to provide the same write track width and relatively small erase bands when either pole is the trailing pole depending on direction of movement of the media relative to the transducer. The bottom pole has an upper portion and a lower portion. The bottom pole upper portion width is less than the bottom pole lower portion width. The top pole has a main portion formed opposite to the bottom pole upper portion. The top pole main portion has a main portion width which is equal to the bottom pole upper portion width.
摘要翻译：一种制造方法和具有反向写入元件的磁换能器，其具有极尖端宽度的零增量，以提供对介质上的写入磁道宽度和写入擦除带的改进的双向控制。换能器包括顶极和底极，其被配置为当根据介质相对于换能器的移动方向，当任一极是后极时，提供相同的写磁道宽度和相对较小的擦除带。底极具有上部和下部。底极上部宽度小于底极下部宽度。上极具有与底极上部相对的主要部分。顶极主体部具有与底极上部宽度相等的主要部分宽度。

2. 发明授权

US07359151B1 Magnetic head having writer with embedded write gap between wear-resistant pole tip layers 有权
标题翻译：具有写入器的磁头在耐磨极尖端层之间具有嵌入的写入间隙
公开(公告)号：US07359151B1
公开(公告)日：2008-04-15
申请号：US11094703
申请日：2005-03-30
申请人： John P. Biesecker , Larry E. Daby
发明人： John P. Biesecker , Larry E. Daby
IPC分类号： G11B5/31
CPC分类号： G11B5/1875 , G11B5/3106 , G11B5/3116
摘要： A method of fabricating a magnetic writer includes depositing a wear-resistant bottom pole tip layer on a bottom pole; depositing a write gap layer on the bottom pole tip layer; and depositing a wear-resistant top pole tip layer on the write gap layer. The layers are patterned such that the write gap layer and the top pole tip layer each have a track width facing a media surface and the write gap layer and the top pole tip layer each have the same length equal to a throat height between the media surface and a zero throat location. The bottom pole tip layer and the bottom pole are patterned such that the bottom pole tip layer has the track width facing the media surface and the bottom pole has a bottom pole tip at the media surface with the bottom pole tip having the track width facing the media surface.
摘要翻译：制造磁性写入器的方法包括在底极上沉积耐磨底极尖端层; 在底极尖端层上沉积写间隙层; 以及在所述写间隙层上沉积耐磨顶极尖端层。这些层被图案化，使得写间隙层和顶极尖端层各自具有面向介质表面的轨道宽度，并且写间隙层和顶极尖端层各自具有等于介质表面之间的喉部高度的相同长度和零喉部位置。底极尖端层和底极被图案化，使得底极尖端层具有面向介质表面的轨道宽度，并且底极在介质表面处具有底极尖端，底极尖端具有面向媒体表面。

3. 发明授权

US06563669B1 Inverted write head with high-precision track width definition 有权
标题翻译：倒写写头具有高精度的轨道宽度定义
公开(公告)号：US06563669B1
公开(公告)日：2003-05-13
申请号：US09660662
申请日：2000-09-13
申请人： Larry E. Daby , James C. Cates , John P. Biesecker
发明人： Larry E. Daby , James C. Cates , John P. Biesecker
IPC分类号： G11B5147
CPC分类号： G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3967
摘要： A method of fabricating a thin film magnetic transducer and the resulting transducer structure is disclosed. The method starts with the formation of a bottom pole having an upper portion and a lower portion in a zero throat region. The upper portion has an upper portion width and the lower portion had a lower portion width, wherein the lower portion width is greater than the upper portion width. A gap layer is then formed over the bottom pole, and the top pole is formed over the gap layer. The top pole width is greater than the bottom pole's lower portion width. In one embodiment, a planarization layer is deposited overlaying the bottom pole prior to formation of the gap layer. Lapping is then performed to reduce the planarization layer and the bottom pole's upper portion to a flat surface suitable for receiving the gap layer deposition.
摘要翻译：公开了制造薄膜磁换能器的方法和所得的换能器结构。该方法开始于在零喉部区域中形成具有上部和下部的底极。上部具有上部宽度，下部具有下部宽度，其中下部宽度大于上部宽度。然后在底极上形成间隙层，并且顶部极形成在间隙层上。顶极宽度大于底极的下部宽度。在一个实施例中，在形成间隙层之前沉积覆盖底极的平坦化层。然后进行研磨以将平坦化层和底极的上部部分减小到适于接收间隙层沉积的平坦表面。

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