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1. 发明授权

US06233116B1 Thin film write head with improved laminated flux carrying structure and method of fabrication 有权
标题翻译：具有改进的层叠助焊剂携带结构和制造方法的薄膜写头
公开(公告)号：US06233116B1
公开(公告)日：2001-05-15
申请号：US09192388
申请日：1998-11-13
申请人： Yingjian Chen , Zhupei Shi , Syed Hossain
发明人： Yingjian Chen , Zhupei Shi , Syed Hossain
IPC分类号： G11B5147
CPC分类号： G11B5/3109 , G11B5/3113 , G11B5/313 , G11B5/3156
摘要： The present invention provides a thin film write head having an improved laminated flux carrying structure and method of fabrication. The preferred embodiment provides laminated layers of: high moment magnetic material, and easily aligned high resistivity magnetic material. In the preferred embodiment, the easily aligned laminating layer induces uniaxial anisotropy, by exchange coupling, to improve uniaxial anisotropy in the high moment material. This allows deposition induced uniaxial anisotropy by DC magnetron sputtering and also provides improved post deposition annealing, if desired. It is preferred to laminate FeXN, such as FeRhN, or other crystalline structure material, with an amorphous alloy material, preferably Co based, such as CoZrCr. In the preferred embodiment, upper and lower pole structures may both be laminated as discussed above. Such laminated structures have higher Bs than structures with insulative laminates, and yokes and pole tips and may be integrally formed, if desired, because flux may travel along or across the laminating layers. The preferred embodiment of the present invention improves soft magnetic properties, reduces eddy currents, improves hard axis alignment while not deleteriously affecting the coercivity, permeability, and magnetostriction of the structure, thus allowing for improved high frequency operation.
摘要翻译：本发明提供一种具有改进的层叠助焊剂携带结构和制造方法的薄膜写入头。优选的实施例提供了叠层层：高力矩磁性材料和容易对准的高电阻率磁性材料。在优选实施例中，容易对准的层压层通过交换耦合引起单轴各向异性，以提高高力矩材料中的单轴各向异性。这允许通过DC磁控溅射沉积诱导的单轴各向异性，并且如果需要，还提供改进的后沉积退火。优选将FeXN如FeRhN或其它晶体结构材料与非晶合金材料（优选Co基）如CoZrCr层压。在优选实施例中，如上所述，可以将上极和下极结构层叠。如果需要，这种层压结构具有比具有绝缘层压板的结构更高的Bs，并且轭和磁极尖端可以一体地形成，因为焊剂可以沿着或穿过层压层行进。本发明的优选实施例提高了软磁性能，降低涡流，改善了硬轴对准，同时不会有害地影响结构的矫顽力，磁导率和磁致伸缩，从而改善了高频运行。

2. 发明授权

US06353511B1 Thin film write head for improved high speed and high density recording 有权
标题翻译：薄膜写入头用于改进高速和高密度记录
公开(公告)号：US06353511B1
公开(公告)日：2002-03-05
申请号：US09335155
申请日：1999-06-15
申请人： Zhupei Shi , Lien-Chang Wang , Bill Crue , Yingjian Chen , Syed Hossain
发明人： Zhupei Shi , Lien-Chang Wang , Bill Crue , Yingjian Chen , Syed Hossain
IPC分类号： G11B531
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3113 , G11B5/3116 , G11B5/313 , G11B5/3153 , G11B5/3163 , G11B5/455
摘要： A preferred embodiment provides a thin film write head having upper and lower pole structures each having pedestal pole tips formed with CoNiFe. The pedestal pole tips may have from about 60% to about 70% Co and from about 10% to about 15% Ni. The upper pole structure of the preferred embodiment has a laminated yoke portion having upper and lower layers. The lower layer is stitched to the pedestal pole tip of the upper pole structure and comprises FeXN, where X is selected from the group consisting of Rh, Ta, Hf, Al, Zr, Ti, Ru, Si, Cr, V, Si, Sr, Nb, Mo, Ru, and Pd. The upper layer comprises NiFe preferably having from about 15% to about 55% of Fe. It is preferred to define the lower layer of the yoke by etching FeXN material using the upper layer as a hard mask. In a preferred method and embodiment, the top surfaces of the conductor coil and the upper pedestal pole tip are planarized with an inorganic capping layer formed thereover to insulate the conductor coil from the yoke and to provide a low apex angle to form the yoke over.
摘要翻译：优选实施例提供一种具有上和下极结构的薄膜写头，每个具有由CoNiFe形成的基座极尖。基座极尖可以具有约60％至约70％的Co和约10％至约15％的Ni。优选实施例的上极结构具有具有上层和下层的层叠轭部分。下层被缝合到上极结构的基座极端，并且包括FeXN，其中X选自Rh，Ta，Hf，Al，Zr，Ti，Ru，Si，Cr，V，Si， Sr，Nb，Mo，Ru和Pd。上层包含优选具有约15％至约55％Fe的NiFe。优选通过使用上层作为硬掩模蚀刻FeXN材料来限定轭的下层。在优选的方法和实施例中，导体线圈和上基座极尖的顶表面与形成在其上的无机覆盖层平坦化，以使导体线圈与轭绝缘，并提供低顶角以形成轭。

3. 发明授权

US06317290B1 Advance pole trim writer with moment P1 and low apex angle 有权
标题翻译：提前极点修剪作者，力矩P1和低顶角
公开(公告)号：US06317290B1
公开(公告)日：2001-11-13
申请号：US09387619
申请日：1999-08-31
申请人： Lien-Chang Wang , Zhupei Shi , Syed Hossain , Billy W. Crue, Jr. , Song Pang
发明人： Lien-Chang Wang , Zhupei Shi , Syed Hossain , Billy W. Crue, Jr. , Song Pang
IPC分类号： G11B531
CPC分类号： G11B5/313 , G11B5/3116 , G11B5/3146 , G11B5/3967
摘要： A magnetoresistive head having improved overwrite performance and a small trackwidth. The magnetoresistive head having a magnetic yoke formed of first and second poles joined at a back gap region and having an opposite write gap region. A pedestal with a top portion constructed of a high saturation moment material is provided on the first pole, limited to the write gap region and spaced from the read element so as to prevent popcorn noise in read sensor. The high moment pedestal is raised above surrounding structure causing the second pole to define a very low apex angle in the write gap region.
摘要翻译：具有改进的重写性能和小轨道宽度的磁阻头。具有由第一和第二极形成的磁轭的磁阻磁头在后间隙区域连接并且具有相反的写入间隙区域。具有由高饱和力矩材料构成的顶部的基座设置在第一极上，限于写入间隙区域并与读取元件间隔开，以防止读取传感器中的爆米花噪声。高力矩基座在周围结构上方升高，导致第二极在写入间隙区域中限定非常低的顶角。

4. 发明授权

US06190764B1 Inductive write head for magnetic data storage media 失效
标题翻译：磁数据存储介质的感应写头
公开(公告)号：US06190764B1
公开(公告)日：2001-02-20
申请号：US09199252
申请日：1998-11-23
申请人： Zhupei Shi , Chun He , Syed Hossain , Mark S. Miller
发明人： Zhupei Shi , Chun He , Syed Hossain , Mark S. Miller
IPC分类号： G11B5265
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3116 , Y10S428/90 , Y10T428/1186
摘要： An inductive write head includes a first pole and a second pole that form a yoke having a write gap between the first pole and second pole. The second pole is formed of a particular Co100-a-bZraCrb compound. More specifically, the second pole is formed where “a” is in the range of about 2 atomic percent to about 18 atomic percent, and “b” is in the range of about 0.5 atomic percent to about 6 atomic percent. The magnetic write element also includes a conductive coil which lies between the first pole and the second pole. The inductive write head also includes a first yoke pedestal attached to the first pole, and a second yoke pedestal attached to the second pole, with the write gap formed therebetween. Further, the first yoke pedestal has a pedestal width that defines the write element trackwidth and that is smaller than the pedestal width of the second yoke pedestal.
摘要翻译：感应写入头包括第一极和第二极，其形成在第一极和第二极之间具有写入间隙的磁轭。第二极由特定的Co100-a-bZraCrb化合物形成。更具体地说，形成第二极，其中“a”在约2原子％至约18原子百分比的范围内，“b”在约0.5原子％至约6原子百分比的范围内。磁写入元件还包括位于第一极和第二极之间的导电线圈。电感写入头还包括附接到第一极的第一磁轭座和连接到第二极的第二磁轭座，其间形成有写入间隙。此外，第一磁轭座具有限定写入元件轨道宽度并且小于第二磁轭座的基座宽度的基座宽度。

5. 发明授权

US06221218B1 Method of forming an inductive write head for magnetic data storage media 失效
标题翻译：形成用于磁数据存储介质的感应写头的方法
公开(公告)号：US06221218B1
公开(公告)日：2001-04-24
申请号：US09251848
申请日：1999-02-17
申请人： Zhupei Shi , Chun He , Syed Hossain , Mark S. Miller
发明人： Zhupei Shi , Chun He , Syed Hossain , Mark S. Miller
IPC分类号： B32B516
CPC分类号： G11B5/3109 , G11B5/3116 , G11B5/3967 , Y10S428/90 , Y10T428/1171 , Y10T428/26
摘要： An inductive write head includes a first pole and a second pole that form a yoke having a write gap between the first pole and second pole. The second pole is formed of a particular Co100-a-bZRaCRb compound. More specifically, the second pole is formed where “a” is in the range of about 2 atomic percent to about 18 atomic percent, and “b” is in the range of about 0.5 atomic percent to about 6 atomic percent. The magnetic write element also includes a conductive coil which lies between the first pole and the second pole. The inductive write head also includes a first yoke pedestal attached to the first pole, and a second yoke pedestal attached to the second pole, with the write gap formed therebetween. Further, the first yoke pedestal has a pedestal width that defines the write element trackwidth and that is smaller than the pedestal width of the second yoke pedestal.
摘要翻译：感应写入头包括第一极和第二极，其形成在第一极和第二极之间具有写入间隙的磁轭。第二极由特定的Co100-a-bZRaCRb化合物形成。更具体地说，形成第二极，其中“a”在约2原子％至约18原子百分比的范围内，“b”在约0.5原子％至约6原子百分比的范围内。磁写入元件还包括位于第一极和第二极之间的导电线圈。电感写入头还包括附接到第一极的第一磁轭座和连接到第二极的第二磁轭座，其间形成有写入间隙。此外，第一磁轭座具有限定写入元件轨道宽度并且小于第二磁轭座的基座宽度的基座宽度。

6. 发明申请

US20110111261A1 PERPENDICULAR MAGNETIC RECORDING MEDIA HAVING A DUAL ONSET LAYER 有权
标题翻译：具有双重ONSET层的PERPENDICULAR磁记录介质
公开(公告)号：US20110111261A1
公开(公告)日：2011-05-12
申请号：US12614598
申请日：2009-11-09
申请人： Xiaoping Bian , Jack Jyh-Kau Chang , Zhupei Shi
发明人： Xiaoping Bian , Jack Jyh-Kau Chang , Zhupei Shi
IPC分类号： G11B5/33 , G11B5/66 , B05D5/12
CPC分类号： G11B5/66 , G11B5/65 , G11B5/7325 , G11B5/738 , Y10T428/115
摘要： Perpendicular magnetic recording (PMR) media and methods of fabricating PMR media are described. The PMR media includes, among other layers, an underlayer, a first onset layer on the underlayer, a second onset layer on the first onset layer, and a perpendicular magnetic recording layer on the second onset layer. The second onset layer has a magnetic moment which is higher than both a magnetic moment of the first onset layer and a magnetic moment of the perpendicular magnetic recording layer.
摘要翻译：描述了垂直磁记录（PMR）介质和制造PMR介质的方法。除了其它层之外，PMR介质包括底层，底层上的第一起始层，第一起始层上的第二起始层和第二起始层上的垂直磁记录层。第二起始层具有高于第一起始层的磁矩和垂直磁记录层的磁矩的磁矩。

7. 发明授权

US06944938B1 Method of forming a magnetoresistive device 失效
标题翻译：形成磁阻器件的方法
公开(公告)号：US06944938B1
公开(公告)日：2005-09-20
申请号：US10976504
申请日：2004-10-29
申请人： Billy W. Crue, Jr. , Mark David Thomas , Zhupei Shi , Renuka Apparao
发明人： Billy W. Crue, Jr. , Mark David Thomas , Zhupei Shi , Renuka Apparao
IPC分类号： G11B5/127 , G11B5/39 , H04R31/00
CPC分类号： G11B5/39 , Y10T29/49041 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49071 , Y10T29/49073 , Y10T29/49798
摘要： A method of forming a head comprises forming a write transducer on a wafer, cutting the wafer to produce a slider bar with a cut surface, and planarizing the cut surface of the slider bar. Forming the write transducer can include forming a first pole layer and forming a first pole pedestal layer over the first pole layer, where the first pole pedestal layer includes a tapered portion defined by a first end having a nose width less than a desired final nose width, and a second end having a zero throat width greater than the desired final nose width. Planarizing the cut surface of the slider bar exposes the first pole pedestal layer until a width thereof approximately equals the desired final nose width.
摘要翻译：形成头部的方法包括在晶片上形成写入传感器，切割晶片以产生具有切割表面的滑动条，并平滑化滑块的切割表面。形成写传感器可以包括形成第一极层并在第一极层上形成第一极基座层，其中第一极基座层包括由第一端限定的锥形部分，第一端部的鼻部宽度小于期望的最终鼻部宽度，并且具有大于所需最终鼻宽度的零喉部宽度的第二端。平滑化滑块的切割表面暴露第一极基座层，直到其宽度大致等于期望的最终鼻部宽度。

8. 发明授权

US06756071B1 Method for manufacturing a GMR spin valve having a smooth interface between magnetic and non-magnetic layers 失效
标题翻译：用于制造具有磁性和非磁性层之间平滑界面的GMR自旋阀的方法
公开(公告)号：US06756071B1
公开(公告)日：2004-06-29
申请号：US10243401
申请日：2002-09-12
申请人： Zhupei Shi , Ming Mao , Qunwen Leng
发明人： Zhupei Shi , Ming Mao , Qunwen Leng
IPC分类号： B05D512
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3163 , G11B5/3903 , G11B2005/3996 , Y10S428/90 , Y10S428/928 , Y10T428/1121
摘要： A GMR spin valve is provided for reading a magnetic signal from a magnetic recording medium. The spin valve includes a non-magnetic layer such as for example copper, separated by first and second magnetic layers. The spin valve includes a pinned magnetic layer and a free magnetic layer, the resistance of the spin valve changing with the relative angle between the direction of magnetization of free and pinned layers. Extremely smooth surfaces are provided at the interfaces between the non-magnetic layer and the adjacent magnetic layers. This smooth interface greatly enhances the performance and reliability of the spin valve by allowing extremely tight control of the thickness of the non-magnetic layer and by preventing atomic diffusion between the non-magnetic and magnetic layers. This smooth interface is achieved by including a surfactant in the deposition of the non-magnetic layer.
摘要翻译：提供用于从磁记录介质读取磁信号的GMR自旋阀。自旋阀包括由第一和第二磁性层分离的非磁性层，例如铜。自旋阀包括钉扎磁性层和自由磁性层，自旋阀的阻力随游离层和被钉扎层的磁化方向之间的相对角度而变化。在非磁性层和相邻的磁性层之间的界面处提供非常平滑的表面。这种平滑的界面通过非常严格地控制非磁性层的厚度并防止非磁性层和磁性层之间的原子扩散，大大提高了自旋阀的性能和可靠性。通过在非磁性层的沉积中包括表面活性剂来实现该光滑界面。

9. 发明授权

US06633464B2 Synthetic antiferromagnetic pinned layer with Fe/FeSi/Fe system 失效
标题翻译：具有Fe / FeSi / Fe体系的合成反铁磁钉扎层
公开(公告)号：US06633464B2
公开(公告)日：2003-10-14
申请号：US09209060
申请日：1998-12-09
申请人： Chih-Huang Lai , Zhupei Shi , Hua-Ching Tong , Robert E. Rottmayer , Charles W. Miller
发明人： Chih-Huang Lai , Zhupei Shi , Hua-Ching Tong , Robert E. Rottmayer , Charles W. Miller
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/3903 , G11B5/3967 , G11B2005/3996 , H01L43/08 , H01L43/12 , Y10T29/49034 , Y10T29/49044
摘要： A magnetoresistive (MR) device includes a synthetic antiferromagnetic (AFM) layer having an Fe/FeSi/Fe construction. A first Fe layer of the synthetic AFM layer has a magnetization substantially in a first direction, while a second Fe layer of the synthetic AFM layer has a magnetization substantially in a second direction that is substantially antiparallel to the first direction. The magnetoresistive device can be a spin valve in which a first surface of the synthetic AFM layer is adjacent to a pinning layer, and a second surface of the synthetic AFM layer is adjacent to a spacer layer. Further, the spin valve includes a free layer that overlies the spacer, thereby being separated from the synthetic AFM layer by the spacer. The pinning layer, synthetic AFM layer, spacer, and free layer can be bounded by a first shield and a second shield to provide magnetic shielding of the spin valve sensor.
摘要翻译：磁阻（MR）装置包括具有Fe / FeSi / Fe构造的合成反铁磁（AFM）层。合成AFM层的第一Fe层具有基本上在第一方向上的磁化，而合成AFM层的第二Fe层具有基本上在基本上与第一方向反平行的第二方向上的磁化。磁阻器件可以是自旋阀，其中合成AFM层的第一表面与钉扎层相邻，并且合成AFM层的第二表面与间隔层相邻。此外，自旋阀包括覆盖间隔物的自由层，从而通过间隔物与合成AFM层分离。钉扎层，合成AFM层，隔离层和自由层可以由第一屏蔽层和第二屏蔽层限定，以提供自旋阀传感器的磁屏蔽。

10. 发明授权

US06479096B1 Method for manufacturing a GMR spin valve having a smooth interface between magnetic and non-magnetic layers 有权
标题翻译：用于制造具有磁性和非磁性层之间平滑界面的GMR自旋阀的方法
公开(公告)号：US06479096B1
公开(公告)日：2002-11-12
申请号：US09454202
申请日：1999-12-03
申请人： Zhupei Shi , Ming Mao , Qunwen Leng
发明人： Zhupei Shi , Ming Mao , Qunwen Leng
IPC分类号： B05D512
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3163 , G11B5/3903 , G11B2005/3996 , Y10S428/90 , Y10S428/928 , Y10T428/1121
摘要： A GMR spin valve is provided for reading a magnetic signal from a magnetic recording medium. The spin valve includes a non-magnetic layer such as for example copper, separated by first and second magnetic layers. The spin valve includes a pinned magnetic layer and a free magnetic layer, the resistance of the spin valve changing with the relative angle between the direction of magnetization of free and pinned layers. Extremely smooth surfaces are provided at the interfaces between the non-magnetic layer and the adjacent magnetic layers. This smooth interface greatly enhances the performance and reliability of the spin valve by allowing extremely tight control of the thickness of the non-magnetic layer and by preventing atomic diffusion between the non-magnetic and magnetic layers. This smooth interface is achieved by including a surfactant in the deposition of the non-magnetic layer.
摘要翻译：提供用于从磁记录介质读取磁信号的GMR自旋阀。自旋阀包括由第一和第二磁性层分离的非磁性层，例如铜。自旋阀包括钉扎磁性层和自由磁性层，自旋阀的阻力随游离层和被钉扎层的磁化方向之间的相对角度而变化。在非磁性层和相邻的磁性层之间的界面处提供非常平滑的表面。这种平滑的界面通过非常严格地控制非磁性层的厚度并防止非磁性层和磁性层之间的原子扩散，大大提高了自旋阀的性能和可靠性。通过在非磁性层的沉积中包括表面活性剂来实现该光滑界面。

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