公开(公告)号：US06430010B1

公开(公告)日：2002-08-06

申请号：US09561713

申请日：2000-05-01

申请人： Edward Stephens Murdock

发明人： Edward Stephens Murdock

IPC分类号： G11B533

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3903 ,  G11B5/4886 ,  G11B2005/3996

摘要： A method and apparatus for reducing the amount of off-track pickup by a read/write head in a disc drive are disclosed. The read element of the head is placed in a separation zone formed between two pole pieces. The separation zone is positioned along with the read element over a current data track. Another separation zone is formed between the two pole pieces at the sides of the read element. This separation zone formed at the sides of the read element is positioned over adjacent data tracks and has a smaller width to prevent the stray magnetic flux from the adjacent tracks from reaching the read element.

摘要翻译： 公开了一种通过盘驱动器中的读/写头来减少偏离磁道拾取量的方法和装置。 头部的读取元件被放置在形成在两个极片之间的分离区域中。 分离区与当前数据轨道上的读取元素一起定位。 在读取元件的两侧的两个极片之间形成另一分离区。 形成在读取元件侧面的分离区位于相邻的数据轨道上，并且具有较小的宽度以防止来自相邻轨道的杂散磁通量到达读取元件。

公开(公告)号：US06760197B2

公开(公告)日：2004-07-06

申请号：US09865334

申请日：2001-05-25

申请人： Zine-Eddine Boutaghou ,  Edward Stephens Murdock

发明人： Zine-Eddine Boutaghou ,  Edward Stephens Murdock

IPC分类号： G11B533

CPC分类号： G11B5/3903 ,  G11B5/3169 ,  G11B5/3173 ,  G11B5/455 ,  G11B2005/0016 ,  Y10T29/49036

摘要： Herein is disclosed a method and apparatus for controlling a lapping process, so as to create a read/write head that contains a primary magnetoresistive read element with a desired stripe height. An improved lapping guide is achieved by incorporating a secondary magnetoresistive element into a read/write head. By virtue of its location on the same read/write head as a primary magnetoresistive element (used for reading data during operation of the disc drive), the secondary element is located in close proximity to the primary element, resulting in smaller tolerances in aligning or relating the top edges of the primary and secondary elements. Accordingly, the secondary magnetoresistive element more reliably serves as a proxy for the primary element. Optionally, the secondary magnetoresistive element may be fashioned with identical dimensions as the primary element, so as to render the secondary element equivalent to the primary element with regard to magnetic sensitivity. During lapping, the magnetic sensitivity of the secondary magnetoresistive element is monitored and used as a proxy measurement of the magnetic sensitivity of the primary magnetoresistive read element.

摘要翻译： 这里公开了一种用于控制研磨过程的方法和装置，以便产生包含具有期望条纹高度的初级磁阻读取元件的读/写头。 通过将次级磁阻元件并入读/写头来实现改进的研磨导轨。 由于其位于与主磁阻元件相同的读/写头上（用于在盘驱动器的操作期间读取数据），次要元件位于紧邻主要元件的位置，导致对准或更小的公差 关联主要和次要元素的顶部边缘。 因此，次级磁阻元件更可靠地用作主元件的代用品。 可选地，次级磁阻元件可以被制成与主要元件相同的尺寸，以便使得次级元件相对于磁敏感度等同于初级元件。 在研磨期间，二次磁阻元件的磁敏感被监测并用作初级磁阻读取元件的磁敏感性的代表测量。

公开(公告)号：US06556390B1

公开(公告)日：2003-04-29

申请号：US09558253

申请日：2000-04-25

申请人： Sining Mao ,  Zheng Gao ,  Jian Chen ,  Edward Stephens Murdock

发明人： Sining Mao ,  Zheng Gao ,  Jian Chen ,  Edward Stephens Murdock

IPC分类号： G11B539

CPC分类号： H01F10/3272 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3903 ,  H01F10/3259 ,  H01F10/3263

摘要： The present invention comprises a magnetoresistive sensor including a cap layer, a free layer, a spacer layer, a pinned layer, an oxide layer, a pinning layer, a seed layer, and a substrate layer. The sensor consists of the cap layer adjacent the free layer. The free layer is adjacent to the spacer layer. The spacer layer is adjacent to the pinned layer. The pinned layer is adjacent to the oxide layer. The oxide layer is adjacent to the pinning layer. The pinning layer is adjacent to the seed layer and the seed layer is adjacent to the substrate. The present invention also comprises a method of manufacturing the magnetoresistive sensor including forming a layered structure. An electron specular scattering effect occurs at the oxide interface to achieve enhanced GMR responses while maintaining thermostability.

摘要翻译： 本发明包括磁阻传感器，其包括盖层，自由层，间隔层，钉扎层，氧化物层，钉扎层，籽晶层和基底层。 传感器由邻近自由层的盖层组成。 自由层与间隔层相邻。 间隔层与被钉扎层相邻。 钉扎层与氧化物层相邻。 氧化物层与钉扎层相邻。 钉扎层与种子层相邻，种子层与基底相邻。 本发明还包括一种制造磁阻传感器的方法，包括形成分层结构。 在氧化物界面处发生电子镜面散射效应，以实现增强的GMR响应，同时保持热稳定性。

公开(公告)号：US06504675B1

公开(公告)日：2003-01-07

申请号：US09759706

申请日：2001-01-12

申请人： Alexander M. Shukh ,  Frank Edgar Stageberg ,  Edward Stephens Murdock ,  Sharat Batra

发明人： Alexander M. Shukh ,  Frank Edgar Stageberg ,  Edward Stephens Murdock ,  Sharat Batra

IPC分类号： G11B5187

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/1871

摘要： A writer for perpendicular recording on bilayer media with suppressed skew angle effect on the width of the recorded track is disclosed. The writer has a wide and flat trailing edge and a narrow leading edge. In a preferred embodiment, the pole has a trapezoidal cross-section. To suppress the skew effect on the width of the recorded track, the slope angle of the pole sides may be greater than the maximum skew angle in a drive.

摘要翻译： 公开了一种用于在双层介质上垂直记录的写入器，其具有抑制的倾斜角对记录轨道的宽度的影响。 作家具有宽而平坦的后缘和狭窄的前缘。 在优选实施例中，极具有梯形横截面。 为了抑制对记录轨道的宽度的歪斜影响，极侧的倾斜角度可能大于驱动器中的最大倾斜角度。