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1. 发明授权

US08537501B2 Write head with modified side shields 有权
公开(公告)号：US08537501B2
公开(公告)日：2013-09-17
申请号：US13072890
申请日：2011-03-28
申请人： Mourad Benakli , Kirill Aleksandrovich Rivkin , James Gary Wessel , Dehua Han , Huaqing Yin , Scott Franzen , Jianhua Xue
发明人： Mourad Benakli , Kirill Aleksandrovich Rivkin , James Gary Wessel , Dehua Han , Huaqing Yin , Scott Franzen , Jianhua Xue
IPC分类号： G11B5/127
CPC分类号： G11B5/11 , G11B5/3116 , G11B5/315 , G11B5/6082
摘要： A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.

2. 发明申请

US20120250187A1 WRITE HEAD WITH MODIFIED SIDE SHIELDS 有权
标题翻译：具有修改的边框的写头
公开(公告)号：US20120250187A1
公开(公告)日：2012-10-04
申请号：US13072890
申请日：2011-03-28
申请人： Mourad Benakli , Kirill Aleksandrovich Rivkin , James Gary Wessel , Dehua Han , Huaqing Yin , Scott Franzen , Jianhua Xue
发明人： Mourad Benakli , Kirill Aleksandrovich Rivkin , James Gary Wessel , Dehua Han , Huaqing Yin , Scott Franzen , Jianhua Xue
IPC分类号： G11B5/147
CPC分类号： G11B5/11 , G11B5/3116 , G11B5/315 , G11B5/6082
摘要： A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.
摘要翻译：写头，写头具有空气轴承表面，写头包括磁写极，其中在空气轴承表面处，写极具有后表面，与后表面相对的前表面，以及第一和第二面靠近磁性写入磁极的后表面的尾部屏蔽; 靠近磁写入极的第一和第二表面的第一和第二间隙; 靠近第一和第二间隙的第一和第二侧面屏蔽件，第一和第二侧面屏蔽件中的每一个具有尾部屏蔽表面; 以及第一和第二反铁磁耦合层，其位于第一和第二侧面屏蔽的尾部屏蔽表面与后屏蔽之间。

3. 发明申请

US20140063657A1 Magnetic Recording Head Having a Pole Tip Shield 有权
标题翻译：具有杆尖屏蔽的磁记录头
公开(公告)号：US20140063657A1
公开(公告)日：2014-03-06
申请号：US13823672
申请日：2010-09-15
申请人： Kaizhong Gao , Eric Meloche , Jianhua Xue , Eric S. Linville , Dehua Han , Huaqing Yin
发明人： Kaizhong Gao , Eric Meloche , Jianhua Xue , Eric S. Linville , Dehua Han , Huaqing Yin
IPC分类号： G11B5/193 , G11B5/187
CPC分类号： G11B5/193 , G11B5/1278 , G11B5/187 , G11B5/315
摘要： A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.
摘要翻译：公开了一种包括极端屏蔽的写入元件。在所公开的实施例中，例如，极尖屏蔽包括由渐变磁矩材料制成的侧屏蔽部分，以形成具有沿着侧屏蔽部分的长度在下游方向上减小的磁矩的分级侧屏蔽部分。在另一个实施例中，极尖屏蔽包括侧面屏蔽部分，其具有沿磁极末端的侧边缘的部分长度延伸的缩短的长度。在所示的实施例中，侧面屏蔽部分由具有在极尖的前缘前方的凹入部分的成形体形成。凹入部分具有圆形的缩进表面轮廓，其形成圆顶轮廓，用于在极尖前缘前方的极尖护罩的前缘部分之间的间隙区域。

4. 发明授权

US08810964B2 Magnetic recording head having a pole tip shield and a pole-shield gap region 有权
标题翻译：磁记录头具有极尖屏蔽和极屏蔽间隙区域
公开(公告)号：US08810964B2
公开(公告)日：2014-08-19
申请号：US13823672
申请日：2010-09-15
申请人： Kaizhong Gao , Eric Meloche , Jianhua Xue , Eric S. Linville , Dehua Han , Huaqing Yin
发明人： Kaizhong Gao , Eric Meloche , Jianhua Xue , Eric S. Linville , Dehua Han , Huaqing Yin
IPC分类号： G11B5/127
CPC分类号： G11B5/193 , G11B5/1278 , G11B5/187 , G11B5/315
摘要： A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.
摘要翻译：公开了一种包括极端屏蔽的写入元件。在所公开的实施例中，例如，极尖屏蔽包括由渐变磁矩材料制成的侧屏蔽部分，以形成具有沿着侧屏蔽部分的长度在下游方向上减小的磁矩的分级侧屏蔽部分。在另一个实施例中，极尖屏蔽包括侧面屏蔽部分，其具有沿磁极末端的侧边缘的部分长度延伸的缩短的长度。在所示的实施例中，侧面屏蔽部分由具有在极尖的前缘前方的凹入部分的成形体形成。凹入部分具有圆形的缩进表面轮廓，其形成圆顶轮廓，用于在极尖前缘前方的极尖护罩的前缘部分之间的间隙区域。

5. 发明授权

US07609478B2 Magnetic writer pole with a graded magnetic moment 有权
标题翻译：磁刻机极与分级磁矩
公开(公告)号：US07609478B2
公开(公告)日：2009-10-27
申请号：US11390681
申请日：2006-03-28
申请人： Dehua Han , Xuefei Tang , Christopher James Thompson Rea , Jianhua Xue
发明人： Dehua Han , Xuefei Tang , Christopher James Thompson Rea , Jianhua Xue
IPC分类号： G11B5/31 , G11B5/127
CPC分类号： G11B5/1278
摘要： A magnetic writer includes a write pole configured to reduce a skew effect during writing to a magnetic medium. A trailing portion of the write pole has a magnetic moment greater than a leading portion of the write pole.
摘要翻译：磁性写入器包括写入磁极，其被配置为在写入磁性介质期间减小偏斜效应。写入极的后端部分的磁矩大于写入极的引导部分。

6. 发明授权

US08279562B2 Magnetic recording head with magnetic wall angle 有权
标题翻译：带磁壁角度的磁记录头
公开(公告)号：US08279562B2
公开(公告)日：2012-10-02
申请号：US12404579
申请日：2009-03-16
申请人： Kaizhong Gao , Jianhua Xue , Yuming Zhou , Dehua Han , Eric S. Linville
发明人： Kaizhong Gao , Jianhua Xue , Yuming Zhou , Dehua Han , Eric S. Linville
IPC分类号： G11B5/33
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/2457 , G11B5/3116 , Y10T428/1186
摘要： A pole tip shield for a write element of a recording head is disclosed. The pole tip shield is spaced from the pole tip in the leading edge direction to provide a magnetic wall angle to reduce ATI or adjacent track erasure to compensate for the skew angle of the head. In illustrated embodiments, the pole tip shield includes side portions. In illustrated embodiments the pole tip shield is generally “U” shaped and side portions of the pole tip shield include different thickness or width dimensions. In illustrated embodiments, the pole tip shield provides a magnetic wall angle for a rectangular shaped pole tip. Embodiments disclosed in the application include a trailing edge shield separated from the pole tip shield along an air bearing surface of the head by a non-magnetic gap portion.
摘要翻译：公开了一种用于记录头的写入元件的极头护罩。极尖护罩在前缘方向上与极尖间隔开，以提供磁壁角度，以减少ATI或相邻轨道擦除，以补偿头部的歪斜角度。在图示的实施例中，极端护罩包括侧部。在所示实施例中，极端屏蔽件通常为U形，并且极端护罩的侧部分包括不同的厚度或宽度尺寸。在示出的实施例中，极尖屏蔽为矩形极尖提供磁壁角度。本申请中公开的实施例包括通过非磁性间隙部分沿着头部的空气轴承表面与极端护罩分离的后缘护罩。

7. 发明申请

US20100232062A1 MAGNETIC RECORDING HEAD WITH MAGNETIC WALL ANGLE 有权
标题翻译：带磁性壁角的磁记录头
公开(公告)号：US20100232062A1
公开(公告)日：2010-09-16
申请号：US12404579
申请日：2009-03-16
申请人： Kaizhong Gao , Jianhua Xue , Yuming Zhou , Dehua Han , Eric S. Linville
发明人： Kaizhong Gao , Jianhua Xue , Yuming Zhou , Dehua Han , Eric S. Linville
IPC分类号： G11B5/10 , G11B5/127
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/2457 , G11B5/3116 , Y10T428/1186
摘要： A pole tip shield for a write element of a recording head is disclosed. The pole tip shield is spaced from the pole tip in the leading edge direction to provide a magnetic wall angle to reduce ATI or adjacent track erasure to compensate for the skew angle of the head. In illustrated embodiments, the pole tip shield includes side portions. In illustrated embodiments the pole tip shield is generally “U” shaped and side portions of the pole tip shield include different thickness or width dimensions. In illustrated embodiments, the pole tip shield provides a magnetic wall angle for a rectangular shaped pole tip. Embodiments disclosed in the application include a trailing edge shield separated from the pole tip shield along an air bearing surface of the head by a non-magnetic gap portion.
摘要翻译：公开了一种用于记录头的写入元件的极头护罩。极尖护罩在前缘方向上与极尖间隔开，以提供磁壁角度，以减少ATI或相邻轨道擦除，以补偿头部的歪斜角度。在图示的实施例中，极端护罩包括侧部。在示出的实施例中，极端屏蔽件通常为“U”形，并且极尖屏蔽件的侧部分包括不同的厚度或宽度尺寸。在示出的实施例中，极尖屏蔽为矩形极尖提供磁壁角度。本申请中公开的实施例包括通过非磁性间隙部分沿着头部的空气轴承表面与极端护罩分离的后缘护罩。

8. 发明申请

US20070230044A1 Magnetic writer pole with a graded magnetic moment 有权
标题翻译：磁刻机极与分级磁矩
公开(公告)号：US20070230044A1
公开(公告)日：2007-10-04
申请号：US11390681
申请日：2006-03-28
申请人： Dehua Han , Xuefei Tang , Christopher James Rea , Jianhua Xue
发明人： Dehua Han , Xuefei Tang , Christopher James Rea , Jianhua Xue
IPC分类号： G11B5/127
CPC分类号： G11B5/1278
摘要： A magnetic writer includes a write pole configured to reduce a skew effect during writing to a magnetic medium. A trailing portion of the write pole has a magnetic moment greater than a leading portion of the write pole.
摘要翻译：磁性写入器包括写入磁极，其被配置为在写入磁性介质期间减小偏斜效应。写入极的后端部分的磁矩大于写入极的引导部分。

9. 发明授权

US09052269B1 Methods for characterizing relative film density using spectroscopic analysis at the device level 有权
标题翻译：在器件级使用光谱分析表征相对膜密度的方法
公开(公告)号：US09052269B1
公开(公告)日：2015-06-09
申请号：US13460501
申请日：2012-04-30
申请人： Lifan Chen , Haifeng Wang , Li Zeng , Dehua Han
发明人： Lifan Chen , Haifeng Wang , Li Zeng , Dehua Han
IPC分类号： G06F19/00 , G01N31/00 , G01N23/083
CPC分类号： G01N23/083 , G01N9/24 , G01N23/20091 , G01N2223/40
摘要： Methods for characterizing relative film density using spectroscopic analysis at the device level are provided. One such method includes obtaining a composition of materials at preselected areas of a workpiece using energy dispersive X-ray spectroscopy, obtaining an electron energy loss spectrum-imaging data at each of the preselected areas using electron energy loss spectroscopy, removing, for each of the preselected areas, a preselected noise component of the electron energy spectrum-imaging data to form a plasmon energy spectrum-imaging data, generating, for each of the preselected areas, a plasmon energy map based on the respective plasmon energy spectrum-imaging data, determining, for each of the preselected areas, an average plasmon energy value from the respective plasmon energy map, and calculating a relative mass density of the preselected areas based on the average plasmon energy value, a number of valence electrons per molecule, and a molecular weight for each of the preselected areas.
摘要翻译：提供了在器件级使用光谱分析来表征相对膜密度的方法。一种这样的方法包括使用能量色散X射线光谱法在工件的预选区域获得材料的组成，使用电子能量损失光谱法在每个预选区域获得电子能量损失光谱成像数据，预选区域，电子能谱成像数据的预选噪声分量，以形成等离子体激元能谱成像数据，为每个预选区域生成基于相应的等离子体激元能谱成像数据的等离子体激元能量图，确定对于每个预选区域，来自各个等离子体激元能量图的平均等离子体激元能量值，并且基于平均等离子体激元能量值，每分子的价电子数和分子量来计算预选区域的相对质量密度对于每个预选区域。

10. 发明授权

US08724259B1 Conformal high moment side shield seed layer for perpendicular magnetic recording writer 有权
标题翻译：用于垂直磁记录刻录机的保形高力侧屏蔽种子层
公开(公告)号：US08724259B1
公开(公告)日：2014-05-13
申请号：US13493903
申请日：2012-06-11
申请人： Feng Liu , Dehua Han , Yugang Wang , Zhigang Bai , Tao Pan
发明人： Feng Liu , Dehua Han , Yugang Wang , Zhigang Bai , Tao Pan
IPC分类号： G11B5/147
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315 , G11B5/4886
摘要： A perpendicular magnetic recording writer for use in a data storage device, the recording transducer has a magnetic writer pole, a pole tip facing an air bearing surface (ABS). The pole tip has a pole face, leading side wall, a trailing side wall, a first side wall and a second side wall. A trailing side wall nonmagnetic gap layer on the trailing side wall, a first side wall nonmagnetic gap layer deposited on the first side wall, and a second side wall nonmagnetic gap layer deposited on the second side wall. A high magnetic moment seed layer is deposited on the trailing side wall nonmagnetic gap layer, the first side wall nonmagnetic gap layer, and the second side wall nonmagnetic gap layer. In other aspects of the invention shields are provided that have magnetic moments less than the magnetic moment of the seed layers.
摘要翻译：一种在数据存储装置中使用的垂直磁记录刻录机，记录换能器具有磁写入极，极尖面向空气轴承表面（ABS）。极尖具有极面，前侧壁，后侧壁，第一侧壁和第二侧壁。在后侧壁上的后侧壁非磁性间隙层，沉积在第一侧壁上的第一侧壁非磁性间隙层和沉积在第二侧壁上的第二侧壁非磁性间隙层。在后侧壁非磁性间隙层，第一侧壁非磁性间隙层和第二侧壁非磁性间隙层上沉积高磁矩种子层。在本发明的其它方面，提供了具有小于种子层的磁矩的磁矩的屏蔽。

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