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21. 发明申请

US20090128953A1 PERPENDICULAR MAGNETIC WRITE HEAD WITH STITCHED NOTCHED TRAILING SHIELD 有权
标题翻译：全螺纹磁头，带有纹理的刻痕护腕
公开(公告)号：US20090128953A1
公开(公告)日：2009-05-21
申请号：US11944157
申请日：2007-11-21
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/3116 , G11B5/1278 , Y10T29/49048
摘要： A magnetic write head for perpendicular magnetic recording having a stitched notched trailing shield. The trailing shield includes a first pedestal portion having sides that are self aligned with the sides of the write pole and having a back edge that extends a first shield throat height. The shield further includes a second shield portion stitched onto the pedestal portion, the second shield portion having a back edge that extends beyond the back edge of the pedestal portion.
摘要翻译：一种用于垂直磁记录的磁头，具有缝合有缺口的后挡板。后挡板包括第一基座部分，该第一基座部分具有与写入极的两侧自对准的侧面，并且具有延伸第一屏蔽喉部高度的后边缘。屏蔽还包括缝合在基座部分上的第二屏蔽部分，第二屏蔽部分具有延伸超过基座部分的后边缘的后边缘。

22. 发明申请

US20050266275A1 Magnetic recording media with orthogonal anisotropy enhancement or bias layer 有权
标题翻译：具有正交各向异性增强或偏置层的磁记录介质
公开(公告)号：US20050266275A1
公开(公告)日：2005-12-01
申请号：US10857775
申请日：2004-05-28
申请人： Vladimir Nikitin , Changqing Shi
发明人： Vladimir Nikitin , Changqing Shi
IPC分类号： G11B5/127 , G11B5/66
CPC分类号： G11B5/66 , G11B5/1278
摘要： The recording medium according to the invention has a magnetic recording layer, an exchange coupling layer and an enhancement or bias layer with an anisotropy orthogonal to the recording layer. The enhancement layer is designed to have no significant remanent magnetization and preferably to saturate under the write head. The enhancement layer creates an exchange field normal to the anisotropy of the recording layer and has the effect of rotating the magnetization of the recording layer and lowering the required switching field, i.e., the coercivity. The invention can be embodied in a longitudinal recording medium or a perpendicular recording medium. The exchange coupling can either ferromagnetic or antiferromagnetic. The bias layer has a high KuV and anisotropy and is designed to have high thermal stability and minimize the rotation of magnetization with the head field.
摘要翻译：根据本发明的记录介质具有磁记录层，交换耦合层以及具有与记录层正交的各向异性的增强或偏置层。增强层被设计为没有显着的剩余磁化，并且优选地在写头下饱和。增强层产生与记录层的各向异性垂直的交换场，并且具有使记录层的磁化旋转并降低所需切换场（即矫顽力）的效果。本发明可以实现在纵向记录介质或垂直记录介质中。交换耦合可以是铁磁或反铁磁。偏置层具有高的KuV和各向异性，并且被设计成具有高的热稳定性并使磁头与磁头场的旋转最小化。

23. 发明授权

US08444866B1 Method and system for providing a perpendicular magnetic recording pole with a multi-layer side gap 有权
标题翻译：用于提供具有多层侧面间隙的垂直磁记录极的方法和系统
公开(公告)号：US08444866B1
公开(公告)日：2013-05-21
申请号：US12886999
申请日：2010-09-21
申请人： Lijie Guan , Changqing Shi , Ming Jiang , Yun-Fei Li , Ying Hong
发明人： Lijie Guan , Changqing Shi , Ming Jiang , Yun-Fei Li , Ying Hong
IPC分类号： B44C1/22
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163 , Y10T29/49021 , Y10T29/49032
摘要： A method for fabricating a magnetic transducer having a nonmagnetic intermediate layer is described. A trench is provided in the intermediate layer. The trench has a profile and location corresponding to a pole. A first nonmagnetic gap layer is provided. At least part of the first nonmagnetic gap layer resides in the trench. A pole including magnetic material(s) is provided. At least part of the pole resides in the trench and on the part of the nonmagnetic layer in the trench. At least part of the intermediate layer adjacent to the pole is removed and a second nonmagnetic gap layer provided. The second nonmagnetic gap layer is thicker than the first nonmagnetic gap layer. Part of the second nonmagnetic layer and part of the first nonmagnetic layer adjacent to the pole form a side gap. A side shield, a gap, and a top shield are also provided.
摘要翻译：描述了一种用于制造具有非磁性中间层的磁换能器的方法。在中间层设置沟槽。沟槽具有对应于杆的轮廓和位置。提供第一非磁性间隙层。第一非磁性间隙层的至少一部分位于沟槽中。提供包括磁性材料的极柱。极的至少一部分驻留在沟槽中以及在沟槽中的非磁性层的一部分上。去除与极相邻的中间层的至少一部分，并提供第二非磁性间隙层。第二非磁性间隙层比第一非磁性间隙层厚。第二非磁性层的一部分和与极相邻的第一非磁性层的一部分形成侧面间隙。还提供了侧护罩，间隙和顶盖。

24. 发明授权

US08443510B1 Method for utilizing an electronic lapping guide for a beveled pole in a magnetic recording transducer 有权
标题翻译：在磁记录传感器中利用电子研磨引导件用于斜面极的方法
公开(公告)号：US08443510B1
公开(公告)日：2013-05-21
申请号：US12473893
申请日：2009-05-28
申请人： Changqing Shi , Ming Jiang , Lijie Guan
发明人： Changqing Shi , Ming Jiang , Lijie Guan
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3166 , G11B5/3169 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method for providing at least one transducer including magnetic structure and having an air-bearing surface (ABS) are described. The method includes providing a lapping electronic lapping guide (lapping ELG) and a targeting ELG. The lapping ELG and targeting ELG each are coplanar with the desired thickness of the magnetic structure and have a back edge at the distance from the ABS such that the ELG back edges are substantially aligned with the flare point. The targeting ELG has a front edge at a front edge distance from the ABS corresponding to an intersection of the bevel and the desired thickness. The method further includes lapping the transducer and terminating the lapping based on a first resistance of the lapping ELG and a second resistance of the targeting ELG.
摘要翻译：描述了一种用于提供包括磁性结构并具有空气轴承表面（ABS）的至少一个换能器的方法。该方法包括提供研磨电子研磨导向器（研磨ELG）和靶向ELG。研磨ELG和靶向ELG各自与磁性结构的期望厚度共面，并且具有与ABS的距离的后边缘，使得ELG后边缘基本上与火炬点对准。靶向ELG在与斜面和所需厚度的交点相对应的ABS的前边缘距离处具有前边缘。该方法还包括基于研磨ELG的第一电阻和靶向ELG的第二电阻来研磨换能器并终止研磨。

25. 发明授权

US08111479B2 Perpendicular magnetic recording head having a notched trailing shield 有权
标题翻译：垂直磁记录头具有带槽口的后挡板
公开(公告)号：US08111479B2
公开(公告)日：2012-02-07
申请号：US11877570
申请日：2007-10-23
申请人： Tsung Yuan Chen , Wen-Chien David Hsiao , Yimin Hsu , Vladimir Nikitin , Changqing Shi
发明人： Tsung Yuan Chen , Wen-Chien David Hsiao , Yimin Hsu , Vladimir Nikitin , Changqing Shi
IPC分类号： G11B5/127 , G11B5/23
CPC分类号： G11B5/3116 , G11B5/1278
摘要： A magnetic write head for perpendicular magnetic data recording having a trailing shield with a two step throat height. The trailing shield is formed over a non-magnetic bump that forms a notch in the leading edge of the trailing shield. This notch defines a first, smaller throat height closest to the write pole and a larger throat height away from the write pole. The smaller throat height near the write pole prevents excess magnetic flux from leaking to the write pole, thereby ensuring efficient strong write field. The larger trailing shield throat height away from the write pole prevents magnetic saturation of the trailing shield and also greatly facilitates manufacturing avoiding problems related to variations and deviations in manufacturing processes used to define the trailing shield.
摘要翻译：用于垂直磁数据记录的磁写头，具有具有两段喉部高度的后挡板。后挡板形成在非磁性凸块上，该非磁性凸块在后挡板的前缘形成凹口。该凹口限定了最靠近写入极的第一较小的喉部高度和远离写入极的较大的喉部高度。写极附近的较小的喉部高度可防止过多的磁通量泄漏到写入极，从而确保有效的强写入场。远离写入极的较大的后屏蔽喉部高度防止尾部屏蔽层的磁饱和，并且还极大地促进制造，避免与用于限定后屏蔽的制造工艺的变化和偏差相关的问题。

26. 发明授权

US07927724B2 Magnetic recording media with orthogonal anisotropy enhancement or bias layer 有权
标题翻译：具有正交各向异性增强或偏置层的磁记录介质
公开(公告)号：US07927724B2
公开(公告)日：2011-04-19
申请号：US10857775
申请日：2004-05-28
申请人： Vladimir R. Nikitin , Changqing Shi
发明人： Vladimir R. Nikitin , Changqing Shi
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/1278
摘要： The recording medium according to the invention has a magnetic recording layer, an exchange coupling layer and an enhancement or bias layer with an anisotropy orthogonal to the recording layer. The enhancement layer is designed to have no significant remanent magnetization and preferably to saturate under the write head. The enhancement layer creates an exchange field normal to the anisotropy of the recording layer and has the effect of rotating the magnetization of the recording layer and lowering the required switching field, i.e., the coercivity. The invention can be embodied in a longitudinal recording medium or a perpendicular recording medium. The exchange coupling can either ferromagnetic or antiferromagnetic. The bias layer has a high KuV and anisotropy and is designed to have high thermal stability and minimize the rotation of magnetization with the head field.
摘要翻译：根据本发明的记录介质具有磁记录层，交换耦合层以及具有与记录层正交的各向异性的增强或偏置层。增强层被设计为没有显着的剩余磁化，并且优选地在写头下饱和。增强层产生与记录层的各向异性垂直的交换场，并且具有使记录层的磁化旋转并降低所需切换场（即矫顽力）的效果。本发明可以实现在纵向记录介质或垂直记录介质中。交换耦合可以是铁磁或反铁磁。偏置层具有高的KuV和各向异性，并且被设计成具有高的热稳定性并使磁头与磁头场的旋转最小化。

27. 发明授权

US07788798B2 Method for manufacturing a perpendicular magnetic write head with wrap around magnetic trailing and side shields 有权
标题翻译：用于制造垂直磁性写入头的方法，包括磁性尾部和侧面屏蔽
公开(公告)号：US07788798B2
公开(公告)日：2010-09-07
申请号：US11944125
申请日：2007-11-21
申请人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi , Sue Siyang Zhang
发明人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi , Sue Siyang Zhang
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3116 , G11B5/1278 , Y10T29/49032 , Y10T29/49043 , Y10T29/49048 , Y10T29/49052 , Y10T29/49798
摘要： A method for manufacturing a magnetic write head having a wrap around magnetic shield. The method allows a highly accurate short wavelength such as 193 mm photolithography to be used to accurately define the placement and critical dimension of wrap around magnetic shield. The method includes the formation of a magnetic write pole, top gap, and side gap and the deposition of a RIEable fill layer thereover, and CMP to planarization. A 193 nm photolithography and ion milling is used to form a mask over the RIEable layer and one or more reactive ion etching processes are performed to pattern the RIEable layer through 193 nm photolithography mask. A wrap around shield can then be electroplated into the opening formed in the RIEable layer.
摘要翻译：一种用于制造具有围绕磁屏蔽的磁性写入头的方法。该方法允许使用高精度的短波长（例如193mm光刻）来精确地定义磁屏蔽环绕的放置和临界尺寸。该方法包括形成磁性写入极，顶部间隙和侧面间隙以及在其上沉积RIEable填充层，并将CMP平坦化。使用193nm光刻和离子研磨在RIEable层上形成掩模，并且执行一个或多个反应离子蚀刻工艺以通过193nm光刻掩模对RIEable层进行图案化。然后可以将环绕的护罩电镀到形成在RIEable层中的开口中。

28. 发明申请

US20090168237A1 Perpendicular magnetic recording writer main pole having imbedded non-magnetic core and de-coupled pole tip 有权
标题翻译：垂直磁记录器主极嵌有非磁芯和脱耦极头
公开(公告)号：US20090168237A1
公开(公告)日：2009-07-02
申请号：US12005786
申请日：2007-12-27
申请人： Wen-Chien David Hsiao , Ming Jiang , Changqing Shi
发明人： Wen-Chien David Hsiao , Ming Jiang , Changqing Shi
IPC分类号： G11B5/127 , B44C1/22
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： Methods and structures for the fabrication of a thin film, perpendicular recording write head are disclosed. The structure provides a pole tip separated from a rear pole by a non-magnetic separation layer located adjacent the flare point. The rear pole contains an imbedded non-magnetic layer. The separated pole tip and imbedded layer aid in the high data rate recording as well as the erasure performance of the write pole structure. The fabrication involves the deposition of two different oxide layers which have mutually high etch selectivities. This characteristic allows a write pole structure to be built wherein the track width is independent of the location of the flare point. The process also produces a structure wherein the placement of the throat height of the shield is self aligned to the flare point of the write pole.
摘要翻译：公开了用于制造薄膜垂直记录写头的方法和结构。该结构提供了通过位于火炬点附近的非磁性分离层与后极分离的极尖。后极包含嵌入的非磁性层。分离的极尖和嵌入层有助于高数据速率记录以及写柱结构的擦除性能。该制造涉及沉积具有相互高蚀刻选择性的两个不同的氧化物层。该特征允许构建写极结构，其中轨道宽度独立于耀斑点的位置。该过程还产生一种结构，其中屏蔽件的喉部高度的放置与写入极的扩张点自对准。

29. 发明申请

US20090147410A1 PERPENDICULAR MAGNETIC RECORDING WRITE HEAD WITH MAGNETIC SHIELDS SEPARATED BY NONMAGNETIC LAYERS 有权
标题翻译：非磁性层分离的磁性片的磁性记录磁头
公开(公告)号：US20090147410A1
公开(公告)日：2009-06-11
申请号：US11952019
申请日：2007-12-06
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/33
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A perpendicular magnetic recording write head that may be used in magnetic recording disk drives has a magnetic write pole (WP) with an end that is generally the same width as the width of the data tracks on the disk. A trailing shield (TS) is spaced from the WP in the along-the-track direction, a pair of side shields are located on opposite sides of the WP in the cross-track direction, and an optional leading shield (LS) is located on the opposite side of the WP from the TS in the along-the-track direction. The TS, side shields and LS are formed of magnetically permeable soft ferromagnetic material and are separated from each other by nonmagnetic separation layers. The TS, side shields and LS each has a throat height (TH) thickness in its region facing the WP. The throat heights for the shields may be different.
摘要翻译：可用于磁记录盘驱动器的垂直磁记录写头具有磁写磁极（WP），其端部的宽度通常与磁盘上的数据磁道的宽度相同。后沿屏蔽（TS）沿着沿轨道方向与WP间隔开，一对侧屏蔽沿着横向方向位于WP的相对侧上，并且可选择的前屏蔽（LS）位于在WP的相对侧沿着TS沿着轨道方向。 TS，侧屏蔽和LS由导磁软铁磁材料形成，并通过非磁性分离层彼此分离。 TS，侧护罩和LS在其面向WP的区域中具有喉部高度（TH）厚度。盾牌的喉咙高度可能不同。

30. 发明申请

US20090141397A1 PERPENDICULAR MAGNETIC WRITE HEAD WITH STEPPED WRITE POLE FOR REDUCED MCW DEPENDENCY ON SKEW ANGLE 有权
标题翻译：具有逐步写入功能的扁平磁头，用于减少MCW依赖于角度角
公开(公告)号：US20090141397A1
公开(公告)日：2009-06-04
申请号：US11949620
申请日：2007-12-03
申请人： Wen-Chien David Hsiao , Yimin Hsu , Quan-chiu Harry Lam , Yansheng Luo , Vladimir Nikitin , Changqing Shi
发明人： Wen-Chien David Hsiao , Yimin Hsu , Quan-chiu Harry Lam , Yansheng Luo , Vladimir Nikitin , Changqing Shi
IPC分类号： G11B5/127 , G11B5/23
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146 , G11B5/315
摘要： A magnetic write head for perpendicular magnetic data recording having a notched write pole for reduced magnetic core width (MCW) dependence on skew. The write pole is configured with a notch that can extend to or slightly beyond the flare point of the write pole, and is formed on the leading portion of the write pole. The notch can have a notch depth, as measured from the ABS of 50-200 nm or about 120 nm. The notch can have a notch height, measured in the down track direction that is 40-90 nm or 20-90 percent of the write pole height.
摘要翻译：用于垂直磁数据记录的磁写头，具有用于减小磁芯宽度（MCW）的偏斜写入极对偏斜的依赖性。写入极配置有可以延伸到或稍微超过写入极的闪点的凹口，并且形成在写入极的引导部分上。切口可以具有从50-200nm或约120nm的ABS测量的切口深度。切口可以具有沿向下方向测量的切口高度，其为40-90nm或写入极高度的20-90％。

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