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1. 发明授权

US06525902B1 High areal density thin film magnetic head 有权
标题翻译：高密度薄膜磁头
公开(公告)号：US06525902B1
公开(公告)日：2003-02-25
申请号：US09416234
申请日：1999-10-12
申请人： Shouxiang Hu , James K. Price , Sunita B. Gangopadhyay
发明人： Shouxiang Hu , James K. Price , Sunita B. Gangopadhyay
IPC分类号： G11B531
CPC分类号： G11B5/313 , G11B5/3163 , G11B5/3967
摘要： A method of forming a thin film magnetic recording head includes forming a shared pole having a first pole tip, a first top pole segment having a second pole tip, and a write gap layer between the first pole tip and the second pole tip. A write coil can be formed after the first top pole segment and then a second top pole segment can be formed. The second top pole segment includes a connection to the first top pole segment and a connection to the shared pole. A thin film magnetic head includes a shared pole having a first pole tip, a first top pole segment having a second pole tip, a write gap layer positioned between the first pole tip and the second pole tip, a second top pole segment connected to the first top pole segment and to the shared pole, and a write coil positioned between the second top pole segment and the shared pole.
摘要翻译：一种形成薄膜磁记录头的方法包括：形成具有第一极尖的共享极，具有第二极尖的第一顶极段和在第一极尖和第二极尖之间的写间隙层。可以在第一顶极段之后形成写入线圈，然后可以形成第二顶极段。第二顶极段包括到第一顶极段的连接和到共享极的连接。薄膜磁头包括具有第一极尖的共享极，具有第二极尖的第一顶极段，位于第一极尖和第二极尖之间的写间隙层，连接到第二极尖的第二顶极段第一顶极段和共享极，以及位于第二顶极段和共享极之间的写入线圈。

2. 发明授权

US5764056A Nickel-manganese as a pinning layer in spin valve/GMR magnetic sensors 失效
标题翻译：镍锰作为自旋阀/ GMR磁传感器中的钉扎层
公开(公告)号：US5764056A
公开(公告)日：1998-06-09
申请号：US645645
申请日：1996-05-16
申请人： Sining Mao , Nurul Amin , Sunita B. Gangopadhyay , Edward S. Murdock
发明人： Sining Mao , Nurul Amin , Sunita B. Gangopadhyay , Edward S. Murdock
IPC分类号： G01R33/09 , G11B5/39 , H01F10/32 , H01F41/30 , H01L43/10 , G01R33/02 , G11B5/33 , H01L43/08 , G11B5/227
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G01R33/093 , H01F10/324 , H01F10/3268 , H01F41/302 , H01L43/10 , G11B2005/3996
摘要： A spin valve sensor and a method of fabricating the same are disclosed. The spin valve sensor includes a first layer of ferromagnetic material and a second layer of ferromagnetic material, with the second layer of ferromagnetic material having a thickness of less than about 100 .ANG.. A first layer of non-ferromagnetic conducting material is positioned between the first and second layers of ferromagnetic material. A NiMn pinning layer is positioned adjacent to the second layer of ferromagnetic material such that the pinning layer is in contact with the second layer of ferromagnetic material, wherein the NiMn pinning layer has a thickness of less than about 200 .ANG. and provides a pinning field for pinning a magnetization of the second layer of ferromagnetic material in a first direction.
摘要翻译：公开了一种自旋阀传感器及其制造方法。自旋阀传感器包括铁磁材料的第一层和第二铁磁材料层，第二层铁磁材料的厚度小于约100埃。第一层非铁磁性导电材料位于第一和第二层铁磁材料之间。 NiMn钉扎层定位成与第二铁磁材料层相邻，使得钉扎层与第二层铁磁材料接触，其中NiMn钉扎层具有小于约200的厚度，并提供钉扎场，用于在第一方向上固定第二层铁磁材料的磁化。

3. 发明授权

US06700752B2 Non-magnetic metallic layer in a reader gap of a disc drive 有权
标题翻译：在磁盘驱动器的读取器间隙中的非磁性金属层
公开(公告)号：US06700752B2
公开(公告)日：2004-03-02
申请号：US10107990
申请日：2002-03-27
申请人： Dimitar Dimitrov , Michael C. Kautzky , Sunita B. Gangopadhyay , Jumna P. Ramdular , Sisavath M. Bounnakhom , I-Fei Tsu , Robert W. Lamberton
发明人： Dimitar Dimitrov , Michael C. Kautzky , Sunita B. Gangopadhyay , Jumna P. Ramdular , Sisavath M. Bounnakhom , I-Fei Tsu , Robert W. Lamberton
IPC分类号： G11B533
CPC分类号： G11B5/3133 , G11B5/3103 , G11B5/3903 , G11B5/3967 , G11B5/40
摘要： A read/write head with a bottom shield on a slider substrate and a shared shield spaced apart from the bottom shield. A write head is deposited on the shared shield. A read sensor is spaced apart by reader magnetic gaps from the bottom shield and the shared shield. Electrically insulating layers in the reader magnetic gaps form a thermal resistance between the read sensor and the shields. A thermally conducting nonmagnetic layer in a reader magnetic gap reduces the thermal resistance without a corresponding reduction in the reader magnetic gaps.
摘要翻译：一个读/写头，带有一个底部屏蔽在滑块基板上，一个共享屏蔽与底部屏蔽隔开。写头放在共享屏蔽上。读取传感器通过读取器与底部屏蔽和共享屏蔽的磁隙间隔开。读取器磁隙中的电绝缘层在读取传感器和屏蔽之间形成热阻。读取器磁隙中的导热非磁性层可以降低热阻而无需读取器磁隙的相应减小。

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