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1. 发明授权

US06204999B1 Method and system for providing a write head having a conforming pole structure 失效
标题翻译：用于提供具有一致性极结构的写入头的方法和系统
公开(公告)号：US06204999B1
公开(公告)日：2001-03-20
申请号：US09220252
申请日：1998-12-23
申请人： Billy Wayne Crue , Kenneth Everett Knapp , Zhupei Shi , Mark David Thomas
发明人： Billy Wayne Crue , Kenneth Everett Knapp , Zhupei Shi , Mark David Thomas
IPC分类号： G11B5147
CPC分类号： G11B5/313 , G11B5/3133 , G11B5/3163 , G11B5/40
摘要： A system and method for providing a write head is disclosed. The write head includes a first pole and a write gap. At least a portion of the write gap is on a portion of the first pole. The method and system include providing a coil layer including a plurality of turns on the write gap. Each of the plurality of turns is separated by a pitch. The method and system further include depositing an insulator to provide an insulating layer and providing a second pole above the insulating layer. The insulating layer has a first profile substantially conforming to the plurality of turns.
摘要翻译：公开了一种用于提供写入头的系统和方法。写头包括第一极和写间隙。写入间隙的至少一部分在第一极的一部分上。该方法和系统包括在写入间隙上提供包括多个匝的线圈层。多个匝中的每一个以间距分开。所述方法和系统还包括沉积绝缘体以提供绝缘层并在绝缘层上方提供第二极。绝缘层具有基本上符合多个匝的第一轮廓。

2. 发明授权

US06275354B1 Magnetic head with a toroidal coil encompassing only one yoke layer 失效
标题翻译：磁头具有仅包含一个轭层的环形线圈
公开(公告)号：US06275354B1
公开(公告)日：2001-08-14
申请号：US09010006
申请日：1998-01-21
申请人： Yiming Huai , Zhupei Shi , Yong Shen , Billy Wayne Crue
发明人： Yiming Huai , Zhupei Shi , Yong Shen , Billy Wayne Crue
IPC分类号： G11B5147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/313 , G11B5/3967 , G11B2005/3996
摘要： A magnetic head includes first and second magnetic yoke layers which contact each other at a back closure region at one end and delineate a transducer gap at another end. A toroidal coil encompasses one of the yoke layers. The coil axis of the toroidal coil passes through the encompassed yoke layer. During data writing, electrical current passes through the toroidal coil inducing magnetic flux along the coil axis, which flux is efficiently and directly delivered to the transducer gap for writing on a recording medium. During data reading, magnetic flux intercepted by the transducer gap flows along the encompassed yoke layer and efficiently induces electrical current in the toroidal coil for amplification. In alternative embodiments, separate read transducers are disposed adjacent to the toroidal coils to form merged heads.
摘要翻译：磁头包括在一端的后闭合区域彼此接触并在另一端描绘换能器间隙的第一和第二磁轭层。环形线圈包围磁轭层之一。环形线圈的线圈轴线穿过所包围的轭铁层。在数据写入期间，电流通过环形线圈，引起沿着线圈轴的磁通量，该磁通有效地并直接传递到换能器间隙，以便在记录介质上进行写入。在数据读取期间，由换能器间隙截取的磁通量沿着包围的磁轭层流动，并有效地在环形线圈中感应出电流用于放大。在替代实施例中，单独的读取换能器被布置成与环形线圈相邻以形成合并的头部。

3. 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。

4. 发明授权

US06496330B1 Magnetic write head having a splitcoil structure 有权
标题翻译：具有分离线圈结构的磁性写头
公开(公告)号：US06496330B1
公开(公告)日：2002-12-17
申请号：US09393056
申请日：1999-09-09
申请人： Billy W. Crue, Jr. , Zhupei Shi , Mark David Thomas , Lien-Chang Wang
发明人： Billy W. Crue, Jr. , Zhupei Shi , Mark David Thomas , Lien-Chang Wang
IPC分类号： G11B517
CPC分类号： G11B5/313 , G11B2005/0013 , Y10T29/49062
摘要： A magnetoresistive head having a split coil structure including multiple, similar coil layers separated by an insulator and joined at their ends to define parallel electrical paths. The coil passes through a magnetic yoke having an open end and a closed end and is electrically insulated from the yoke. The parallel electrical paths of the separate coil layers can each be modeled as a resistor in series with an inductor, each of the paths also being in parallel with a capacitor. The split coil has a much faster current rise time than a comparable single layer coil or than multiple coils connected in series. Since the coil current provides the magneto-motive force for imparting a signal on a passing recording medium, the decreased current rise time corresponds to an increased data recording rate.
摘要翻译：一种具有分离线圈结构的磁阻头，包括由绝缘体隔开并在其端部连接以限定平行电路径的多个相似的线圈层。线圈通过具有开口端和封闭端的磁轭，并且与磁轭电绝缘。单独线圈层的并联电路可以各自被建模为与电感器串联的电阻器，每个路径也与电容器并联。分离线圈的电流上升时间比可比较的单层线圈要快得多，或多个线圈串联连接。由于线圈电流提供用于在通过的记录介质上施加信号的磁动力，所以减小的电流上升时间对应于增加的数据记录速率。

5. 发明授权

US06829819B1 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：US06829819B1
公开(公告)日：2004-12-14
申请号：US10013431
申请日：2001-12-11
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： G11B5127
CPC分类号： G11B5/3912 , G11B5/09 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/3163 , G11B5/3967 , Y10T29/49039 , Y10T29/49041 , Y10T29/49048 , Y10T29/4905 , Y10T29/49071 , Y10T29/49073
摘要： A magnetoresistive device having a first pole, a second pole, and a first tapered pole pedestal therebetween and magnetically connected to the second pole. The first tapered pole has a width that increases with increasing distance away from the air bearing surface, ABS. The magnetoresistive device can also include a second tapered pole pedestal magnetically connected to the first pole, and separated from the first tapered pole pedestal by a write gap. The second tapered pole pedestal has a width that increases with increasing distance away from the air bearing surface. A method of the present invention includes defining the trackwidth of a write element by lapping a tapered pole pedestal. More specifically, the trackwidth is given by a known taper angle, a zero throat width, and a throat height, wherein the throat height is controlled precisely by lapping.
摘要翻译：一种具有第一极，第二极和它们之间的第一锥形极基座并与第二极磁性连接的磁阻器件。第一锥形杆的宽度随着远离空气轴承表面ABS的距离而增加。磁阻器件还可以包括磁性连接到第一极的第二锥形极基座，并且通过写入间隙与第一锥形极基座分离。第二锥形极基座的宽度随着距离空气轴承表面的距离的增加而增加。本发明的方法包括通过研磨锥形极基座来定义写入元件的轨道宽度。更具体地，轨道宽度由已知的锥角，零喉部宽度和喉部高度给出，其中喉部高度通过研磨精确地控制。

6. 发明授权

US06396660B1 Magnetic write element having a thermally dissipative structure 有权
标题翻译：具有热耗散结构的磁写元件
公开(公告)号：US06396660B1
公开(公告)日：2002-05-28
申请号：US09379892
申请日：1999-08-23
申请人： William Jensen , Mark David Thomas , Zhupei Shi , Billy W. Crue, Jr.
发明人： William Jensen , Mark David Thomas , Zhupei Shi , Billy W. Crue, Jr.
IPC分类号： G11B531
CPC分类号： G11B5/3133 , G11B5/012 , G11B5/313 , G11B5/40 , G11B33/14
摘要： A magnetic read/write head having improved thermal characteristics. The read/write head includes a read element and a write element formed there over. The read element includes a read sensor embedded within a dielectric material and sandwiched between first and second shields. The write element includes first and second poles joined to form a yoke. The yoke is closed at one end and defines a write gap at the other. A coil having windings which extend through the yoke generates a magnetic flux within the yoke. This magnetic flux causes a magnetic fringe field at the location of the write gap, the fringe field being capable of imparting a magnetic signal onto a passing magnetic medium. The coil sits atop a thermally conductive, electrically insulating material which electrically isolates the coil from surrounding structure. When a current flows through the coil, heat will be generated. Such heat, which could be detrimental to read performance, is conducted through the thermally conductive material out of the yoke and away from the write element. The thermally conductive material provides a large heat sink for dissipation of the heat.
摘要翻译：具有改善的热特性的磁读/写头。读/写头包括读取元件和在其上形成的写入元件。读取元件包括嵌入电介质材料内并夹在第一和第二屏蔽之间的读取传感器。写入元件包括连接以形成轭的第一和第二极。磁轭在一端封闭，并在另一端限定写入间隙。具有延伸穿过轭的绕组的线圈在轭内产生磁通。该磁通量在写入间隙的位置处产生磁性边缘场，边缘场能够将磁信号传递到通过的磁性介质上。线圈位于导热电绝缘材料的顶部，将线圈与周围结构电隔离。当电流流过线圈时，会产生热量。可能对读取性能有害的这种热量通过导热材料从磁轭外部并且远离写入元件进行。导热材料提供了一个大的散热片来散热。

7. 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。

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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