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1. 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。

2. 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。

3. 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。

4. 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。

5. 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。

6. 发明授权

US07054113B1 Reader/writer for magnetic memory 有权
标题翻译：磁记忆读写器
公开(公告)号：US07054113B1
公开(公告)日：2006-05-30
申请号：US09999605
申请日：2001-10-25
申请人： David John Seagle , Mark David Thomas , Sandra Sankar , Pei Zou , Carlos Corona
发明人： David John Seagle , Mark David Thomas , Sandra Sankar , Pei Zou , Carlos Corona
IPC分类号： G11B5/33
CPC分类号： G11B5/3143 , G11B5/3967 , G11B5/4853
摘要： A method for manufacturing a reader/writer is provided having a substrate with an undercoat formed thereon. A first shield is formed over a portion of the undercoat and a pair of reader leads is formed over the first shield and undercoat. A read sensor is formed between the reader leads and a first pole/second shield is formed over the reader leads. A mid coat is formed over the undercoat and the reader leads. A second pole is formed over and in contact with the mid coat. A lead is formed over the second pole. A pedestal is formed over the reader lead and an overcoat is formed over the second pole and the lead and around the pedestal. A pad is then formed over the pedestal.
摘要翻译：提供一种用于制造读/写器的方法，其具有在其上形成有底涂层的基底。在底涂层的一部分上形成第一屏蔽，并且在第一屏蔽层和底涂层上形成一对读取器引线。在读取器引线之间形成读取传感器，并且在读取器引线上形成第一极/第二屏蔽。在底漆和读取器引线上形成中间涂层。第二个杆形成在中层上方并与之接触。在第二极上形成引线。在读取器引线上形成基座，并且在第二极和引线上并围绕基座形成外涂层。然后在基座上形成垫。

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