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    • 1. 发明授权
    • Magnetic recording sensor with sputtered antiferromagnetic coupling trilayer between plated ferromagnetic shields
    • 磁性记录传感器与电镀铁磁屏蔽之间的溅射反铁磁耦合三层
    • US08760819B1
    • 2014-06-24
    • US12978145
    • 2010-12-23
    • Feng LiuDehua HanMing SunYimin Guo
    • Feng LiuDehua HanMing SunYimin Guo
    • G11B5/11G11B5/33
    • G11B5/3912
    • A magnetic recording sensor for use in a data storage device is described. The sensor has a magnetoresistive sensing element and magnetic shields shielding the magnetoresistive sensing element. The magnetic shields include a first plated soft ferromagnetic layer, a second plated soft ferromagnetic layer, and an antiferromagnetic coupling (AFC) trilayer between the first plated soft ferromagnetic layer and the second plated soft ferromagnetic layer. The AFC trilayer includes a first AFC layer of sputtered ferromagnetic material; a second AFC layer of a nonmagnetic antiferromagnetic exchange material, and a third AFC layer of sputtered ferromagnetic material. Shields with AFC trilayers in bottom, side, and/or top shields, and well as between shields are provided. A method of fabricating is also provided.
    • 描述了用于数据存储装置的磁记录传感器。 传感器具有磁阻感测元件和屏蔽磁阻感测元件的磁屏蔽。 磁屏蔽包括第一镀层软铁磁层,第二电镀软铁磁层和第一镀层软铁磁层与第二电镀软铁磁层之间的反铁磁耦合(AFC)三层。 AFC三层包括溅射铁磁材料的第一AFC层; 非磁性反铁磁交换材料的第二AFC层和溅射的铁磁材料的第三AFC层。 提供了在底部,侧面和/或顶部屏蔽以及屏蔽之间的AFC三层玻璃的屏蔽。 还提供了一种制造方法。
    • 3. 发明授权
    • Systems and methods for providing perpendicular magnetic writers having gradient magnetic moment side shields
    • 用于提供具有梯度磁矩侧屏蔽的垂直磁性写入器的系统和方法
    • US08582238B1
    • 2013-11-12
    • US13279105
    • 2011-10-21
    • Feng LiuZhigang BaiDehua HanMing SunYugang WangTao Pan
    • Feng LiuZhigang BaiDehua HanMing SunYugang WangTao Pan
    • G11B5/33
    • G11B5/3163G11B5/1278G11B5/3116G11B5/315
    • Systems and methods for providing perpendicular magnetic writers having gradient magnetic moment side shields are provided. In one case, the system includes a pole having a leading edge and trailing edge, a leading shield positioned closer to the leading edge than the trailing edge, the leading shield having a leading shield moment, a trailing shield positioned closer to the trailing edge than the leading edge, the trailing shield having a trailing shield moment greater than the leading shield moment, and a side shield positioned along side of the pole, the side shield including a gradient magnetic moment progressing from a first side shield moment to a second side shield moment, where the first side shield moment is about equal to the leading shield moment, and where the second side shield moment is about equal to the trailing shield moment and positioned closer to the trailing shield than the leading shield.
    • 提供了用于提供具有梯度磁矩侧屏蔽的垂直磁性写入器的系统和方法。 在一种情况下,系统包括具有前缘和后缘的杆,位于比后缘更靠近前缘的前护罩,前护罩具有前屏蔽力矩,位于靠近后缘的后挡板比 所述前缘,所述后挡板具有大于所述前屏蔽力矩的后屏蔽力矩,以及沿所述杆的侧面定位的侧屏蔽,所述侧屏蔽包括从第一侧屏蔽力矩到第二侧屏蔽的梯度磁矩 其中第一侧面屏蔽力矩大约等于前导屏蔽力矩,并且其中第二侧面屏蔽力矩大约等于尾部屏蔽力矩,并且位于比前导屏蔽件更靠近尾部屏蔽件的位置。
    • 5. 发明授权
    • Method for providing a side shield for a magnetic recording transducer using an air bridge
    • 用于使用空气桥提供用于磁记录换能器的侧屏蔽的方法
    • US08451563B1
    • 2013-05-28
    • US13331208
    • 2011-12-20
    • Jinqiu ZhangFeng LiuShaoping LiMing Sun
    • Jinqiu ZhangFeng LiuShaoping LiMing Sun
    • G11B5/17G11B5/127
    • G11B5/112G11B5/1278G11B5/3116G11B5/315G11B5/3163Y10T29/49044
    • A method fabricates a side shield for a magnetic transducer having a nonmagnetic layer and an ABS location corresponding to an ABS. The nonmagnetic layer has a pole trench therein. The pole trench has a shape and location corresponding to the pole. A wet etchable layer is deposited. Part of the wet etchable layer resides in the pole trench. A pole is formed. The pole has a bottom and a top wider than the bottom in the pole tip region. Part of the pole in the pole tip region is in the pole trench on at least part of the wet etchable layer. At least parts of the wet etchable layer and the nonmagnetic layer are removed, forming an air bridge. The air bridge is between part of the pole at the ABS location and an underlying layer. Side shield layer(s) that substantially fill the air bridge are deposited.
    • 一种制造用于具有对应于ABS的非磁性层和ABS位置的磁换能器的侧屏蔽的方法。 非磁性层在其中具有极沟槽。 极沟具有对应于极的形状和位置。 沉积湿蚀刻层。 湿蚀刻层的一部分位于极沟槽中。 一个极点形成。 电极具有底部和顶部宽于电极尖端区域中的底部。 极尖区域中的极的一部分在至少部分湿蚀刻层的极沟中。 去除湿蚀刻层和非磁性层的至少一部分,形成空气桥。 空气桥在ABS位置的极点的一部分和下层之间。 基本上填充空气桥的侧面屏蔽层被沉积。