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公开(公告)号：US06584676B1
公开(公告)日：2003-07-01
申请号：US09561659
申请日：2000-05-02
IPC分类号： G11B5127
CPC分类号： G11B5/3103 , G11B5/1871 , G11B5/3116 , G11B5/3163 , G11B5/3967 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49046
摘要： A method for finishing a pole tip trimmed read/write heat that includes a substrate with a pole tip structure having a shield, a shield/pole, and an outer pole. A gap region separates the pole and the shield/pole. First, pole tip trimming is performed to the read/write head to remove matter from the shield/pole, the pole, and the gap region. This defines a bridge composed of inward-facing extensions of the pole and shield/pole interconnected by an intervening region. This bridge separates recessed “trenches,” each formed by removing a contiguous mass from the shield/pole, the gap region, and the pole. Next, an overlayer is applied over the pole tip structure, filling the recessed trenches. The coated structure is then trimmed to remove all coating material overlying the shield/pole and pole. Trimming is continued to additionally remove a top layer of the protrusions of the pole and shield/pole to remove any rounded edges created by pole tip patterning, resulting in a more distinct write head. The refilled trenches of the recessed areas impart improved resistance to corrosive attack, to head-crashes from the release of accumulated debris, and to mechanical damage of the trimmed pole-tip structure.
摘要翻译： 一种用于完成极尖修整读/写热的方法，其包括具有带有屏蔽的极端结构的基板，屏蔽/极和外极。 间隙区域分离极和屏蔽/极。 首先，对读/写头执行极尖修剪，以从屏蔽/极，极和间隙区域去除物质。 这定义了一个桥梁，其由通过中间区域互连的极点和屏蔽/极的向内延伸部分组成。 这个桥分开凹陷的“沟槽”，每个通过从屏蔽/极，间隙区域和极点去除连续的质量而形成。 接下来，将覆盖层施加在极尖结构上，填充凹陷的沟槽。 然后修整涂层结构以去除覆盖屏蔽/极和极的所有涂层材料。 继续进行修整以另外去除杆和屏蔽/极的突起的顶层，以去除由极尖图案化产生的任何圆形边缘，导致更加不同的写入头。 凹陷区域的重新焊接的沟槽提供了抵抗腐蚀性攻击的抵抗力，从堆积的碎屑的释放引起的头部破坏以及修剪的杆尖结构的机械损坏。
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22.发明授权
公开(公告)号：US5680282A
公开(公告)日：1997-10-21
申请号：US738973
申请日：1996-10-24
CPC分类号： G11B5/3903 , G11B5/00 , G11B5/40
摘要： A thin film lead structure resistant to resistance increase phenomenon resulting from contamination by mobile impurities. A thin film lead is disposed proximate to a getter layer material having a higher affinity for mobile impurities that the thin film lead. The getter layer material captures mobile impurities and prevents their migration into the thin film lead. The getter layer material may be formed over and in contact with the thin film lead, may be encapsulated within the thin film lead, or both. The getter layer material comprises a rare earth metal selected from the group consisting of yttrium, scandium, lanthanum, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, erbium, and ytterbium. The thin film lead is preferably tantalum, but may be selected from the group consisting of niobium, vanadium, chromium, molybdenum, tungsten and iron. An alternate embodiment of the invention includes a transition metal comprising titanium, zirconium, or hafnium as the getter layer. The capture of mobile impurities by the getter layer prevents resistance increase phenomenon and embrittlement to the thin film lead. The thin film lead may be used as a thin film lead to an electrical circuit, the sensor structure in a magnetic head.
摘要翻译： 一种薄膜引线结构，抵抗由移动杂质污染导致的电阻增加现象。 薄膜引线靠近吸附剂层材料设置，该吸气剂层材料对薄膜引线的移动杂质具有更高的亲和力。 吸气层材料捕获移动杂质并防止其迁移到薄膜引线中。 吸气剂层材料可以形成在薄膜引线之上并与薄膜引线接触，可以封装在薄膜引线内，或两者都被封装。 吸气剂层材料包括选自钇，钪，镧，铈，镨，钕，钐，钆，铽，镝，钬，铒和镱的稀土金属。 薄膜引线优选为钽，但可以选自铌，钒，铬，钼，钨和铁。 本发明的替代实施方案包括包含钛，锆或铪作为吸气剂层的过渡金属。 通过吸气层捕获移动杂质防止了电阻增加现象和薄膜引线的脆化。 薄膜引线可用作薄膜引线到电路，传感器结构在磁头中。
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公开(公告)号：US5505003A
公开(公告)日：1996-04-09
申请号：US230898
申请日：1994-04-21
申请人： Michael Evans , A. Michael Lombardo , Michael A. Parker , Steven Ullery , Charles W. Denison, Jr.
发明人： Michael Evans , A. Michael Lombardo , Michael A. Parker , Steven Ullery , Charles W. Denison, Jr.
CPC分类号： G01B5/20
摘要： A monitoring system having a stylus mounted to a support that controllably moves the stylus along a travel path as it contacts an object of interest. The object is supported by a rotating turntable and held in place by a manually actuatable retainer that exerts a repeatable downward force on the object. A frame that supports the stylus is supported by a flexure plate that makes the task of orienting the frame easier. The frame supports a saddle that can be raised and lowered by a belt system driven by a D.C. pancake motor. The entire monitoring system achieves a required degree of accuracy in monitoring object shape at a reduced manufacturing cost.
摘要翻译： 一种监测系统，其具有安装到支撑件的触针，所述触针在接触感兴趣对象时沿着行进路径可控地移动触针。 该物体由旋转的转盘支撑并通过手动致动的保持器保持在适当位置，该保持器在物体上施加可重复的向下的力。 支撑触针的框架由弯曲板支撑，这使得使框架更容易定向的任务。 框架支撑鞍座，该鞍座可以由直流电动机驱动的皮带系统升高和降低。 整个监控系统以降低的制造成本实现了对物体形状监控所需的准确度。
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公开(公告)号：US5452163A
公开(公告)日：1995-09-19
申请号：US173590
申请日：1993-12-23
申请人： Kevin R. Coffey , Robert E. Fontana , James K. Howard , Todd L. Hylton , Michael A. Parker , Ching H. Tsang
发明人： Kevin R. Coffey , Robert E. Fontana , James K. Howard , Todd L. Hylton , Michael A. Parker , Ching H. Tsang
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3903 , H01L43/10 , G11B2005/3996
摘要： A magnetoresistive read sensor incorporates a multilayer sensing element formed of one or more magnetoresistive elements in a planar array, each magnetoresistive element having a multilayer structure of at least two ferromagnetic layers separated by a nonmagnetic layer. The ferromagnetic layers are coupled antiferromagnetically by magnetostatic coupling at opposing edges of the ferromagnetic layers. A bias layer separated from the magnetoresistive sensing element by a spacer layer provides a magnetic field to bias the magnetoresistive sensing element at a desired non-signal point for linear response. The magnetoresistive sensing element is formed by alternatively depositing layers of ferromagnetic material and layers of nonmagnetic material on a substrate and then patterning the resulting structure using photolithographic techniques to provide a planar array of magnetoresistive elements. A conductive layer is deposited over the array filling in the spaces separating the magnetoresistive elements to provide electrical conductivity between the elements in the plane of the structure.
摘要翻译： 磁阻读取传感器包括由平面阵列中的一个或多个磁阻元件形成的多层感测元件，每个磁阻元件具有由非磁性层隔开的至少两个铁磁层的多层结构。 铁磁层通过在铁磁层的相对边缘处的静磁耦合而反铁磁耦合。 通过间隔层与磁阻感测元件分离的偏置层提供磁场以将磁阻感测元件偏置在期望的非信号点以进行线性响应。 磁阻感测元件通过在衬底上交替地沉积铁磁材料层和非磁性材料层而形成，然后使用光刻技术对所得结构进行构图以提供磁阻元件的平面阵列。 导电层沉积在填充在分离磁阻元件的空间中的阵列上，以提供结构平面中的元件之间的导电性。
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