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11. 发明申请

US20070266551A1 ABS through aggressive stitching 失效
标题翻译： ABS通过积极的拼接
公开(公告)号：US20070266551A1
公开(公告)日：2007-11-22
申请号：US11881316
申请日：2007-07-26
申请人： Cherng-Chyi Han , Mao-Min Chen , Laurie Lauchlan , Lei Zhang
发明人： Cherng-Chyi Han , Mao-Min Chen , Laurie Lauchlan , Lei Zhang
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/33 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/4906 , Y10T29/49062 , Y10T29/49064
摘要： Aggressive (i.e. tight tolerance) stitching offers several advantages for magnetic write heads but at the cost of some losses during pole trimming. This problem has been overcome by replacing the alumina filler layer, that is used to protect the stitched pole during trimming, with a layer of electroplated material. Because of the superior step coverage associated with the plating method of deposition, pole trimming can then proceed without the introduction of stresses to the stitched pole while it is being trimmed.
摘要翻译：积极（即紧公差）缝合为磁性写入头提供了几个优点，但是在极修整期间以一些损失为代价。通过用一层电镀材料替换用于在修整期间保护缝合极的氧化铝填料层已经克服了这个问题。由于与沉积电镀方法相关的优越的台阶覆盖，因此可以进行极细修剪，而不会在缝合极被修剪时引入应力。

12. 发明申请

US20060164766A1 Exchange bias structure for abutted junction GMR sensor 失效
公开(公告)号：US20060164766A1
公开(公告)日：2006-07-27
申请号：US11375323
申请日：2006-03-14
申请人： Yun-Fei Li , Hui-Chuan Wang , Chyu-Jiuh Torng , Cherng-Chyi Han , Mao-Min Chen
发明人： Yun-Fei Li , Hui-Chuan Wang , Chyu-Jiuh Torng , Cherng-Chyi Han , Mao-Min Chen
IPC分类号： G11B5/33 , B05D5/12 , G11B5/127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3163 , G11B5/3903 , G11B5/3932 , G11B2005/3996 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： Although it is known that exchange bias can be utilized in abutted junctions for longitudinal stabilization, a relatively large moment is needed to pin down the sensor edges effectively. Due to the inverse dependence of the exchange bias on the magnetic layer thickness, a large exchange bias has been difficult to achieve by the prior art. This problem has been solved by introducing a structure in which the magnetic moment of the bias layer has been approximately doubled by pinning it from both above and below through exchange with antiferromagnetic layers. Additionally, since the antiferromagnetic layer is in direct abutted contact with the free layer, it acts directly to help stabilize the sensor edge, which is an advantage over the traditional magnetostatic pinning that had been used.

13. 发明授权

US07061730B2 Robust hard bias/conductor lead structures for future GMR heads 失效
标题翻译：坚固的硬偏置/导体引线结构，用于未来的GMR磁头
公开(公告)号：US07061730B2
公开(公告)日：2006-06-13
申请号：US10649456
申请日：2003-08-27
申请人： Cheng T. Horng , Mao-Min Chen , Chen-Jung Chien , Cherng-Chyi Han , Chyu-Jiuh Torng , Ru-Ying Tong
发明人： Cheng T. Horng , Mao-Min Chen , Chen-Jung Chien , Cherng-Chyi Han , Chyu-Jiuh Torng , Ru-Ying Tong
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , G11B5/4853 , G11B5/486 , H01F10/324 , H01F10/3268
摘要： A spin-valve magnetoresistive read element has a thin conductive lead layer of high sheet conductivity, high hardness, high melting point, high corrosion resistance and lacking the propensity for smearing, oozing, electromigration and nodule formation. Said lead layer is formed upon the hard magnetic longitudinal bias layer of an abutted junction spin-valve type magnetoresistive read head and said read head is therefore suitable for reading high density recorded disks at high RPM.
摘要翻译：自旋阀磁阻读取元件具有导电性高，硬度高，熔点高，耐腐蚀性高，缺乏涂抹，渗出，电迁移和结核形成倾向的薄导电铅层。所述引线层形成在接触自旋阀型磁阻读取头的硬磁纵向偏置层上，因此所述读头适用于以高RPM读取高密度记录盘。

14. 发明授权

US07038880B2 Method to make a planar writer with low D.C. coil resistance 失效
标题翻译：具有低直流线圈电阻的平面刻录机的方法
公开(公告)号：US07038880B2
公开(公告)日：2006-05-02
申请号：US10633132
申请日：2003-08-01
申请人： Cherng-Chyi Han , Danning Yang , Mao-Min Chen
发明人： Cherng-Chyi Han , Danning Yang , Mao-Min Chen
IPC分类号： G11B5/147
CPC分类号： G11B5/3136 , G11B5/127 , G11B5/147 , G11B5/31 , G11B5/3196
摘要： An inductive-type write head and its method of fabrication are disclosed. The write head has a vertically separated two-element planar coil of reduced resistance which is the result of forming the lower of the two coils with windings of a greater height and substantially larger cross-sectional area than those of the upper coil. The formation of a lower coil with greater height is possible because of a surface planarization that allows separating the coils by an alumina layer of minimal thickness. This method allows the reduction of coil resistance without the necessity of enlarging the head dimensions. The reduced resistance results in lower power consumption and the elimination of pole tip protrusion caused by excessive heating during operation.
摘要翻译：公开了一种电感式写入头及其制造方法。写头具有具有降低的电阻的垂直分离的两元件平面线圈，其是形成两个线圈中较低的线圈的结果，其绕组具有比上部线圈的更大的高度和大得多的横截面积的绕组。由于表面平坦化，允许通过最小厚度的氧化铝层分离线圈，所以形成较高高度的下线圈是可能的。该方法允许减小线圈电阻而不需要扩大头部尺寸。降低的电阻导致较低的功率消耗和由于操作期间的过度加热而导致的极尖突起的消除。

15. 发明申请

US20060012915A1 Magnetic write head having a wider trailing edge pole structure 失效
标题翻译：具有较宽后缘极结构的磁写头
公开(公告)号：US20060012915A1
公开(公告)日：2006-01-19
申请号：US11229160
申请日：2005-09-16
申请人： Cherng-Chyi Han , Mao-Min Chen , Po Wang , Fenglin Liu
发明人： Cherng-Chyi Han , Mao-Min Chen , Po Wang , Fenglin Liu
IPC分类号： G11B5/147
CPC分类号： G11B5/3163 , G11B5/3116 , G11B5/3967 , Y10T29/49032
摘要： A trimmed upper pole piece for a magnetic write head, said pole piece having a tapered profile that is widest at its trailing edge. Such a pole piece is capable of writing narrow tracks with sharply and well defined patterns and minimal overwriting of adjacent tracks. The necessary taper is produced by using NiCr, NiFeCr, Rh or Ru as write gap filling materials which have an etch rate which is substantially equal to the etch rate of the other layers forming the pole piece and are highly corrosion resistant. As a result, the write gap does not protrude to mask the effects of the ion-beam etch used to form the taper.
摘要翻译：用于磁写头的经修剪的上极片，所述极片具有在其后缘处最宽的锥形轮廓。这样的极片能够以清晰明确的图案和相邻轨迹的最小重写来写入窄轨道。通过使用NiCr，NiFeCr，Rh或Ru作为写入间隙填充材料产生必要的锥度，其具有基本上等于形成极片的其它层的蚀刻速率的蚀刻速率并且具有高耐腐蚀性。结果，写入间隙不会突出以掩盖用于形成锥形的离子束蚀刻的效果。

16. 发明申请

US20050186797A1 ABS through aggressive stitching 失效
标题翻译： ABS通过积极的拼接
公开(公告)号：US20050186797A1
公开(公告)日：2005-08-25
申请号：US10782496
申请日：2004-02-19
申请人： Cherng-Chyi Han , Mao-Min Chen , Laurie Lauchlan , Lei Zhang
发明人： Cherng-Chyi Han , Mao-Min Chen , Laurie Lauchlan , Lei Zhang
IPC分类号： G11B5/33 , H01L21/302 , H01L21/461
CPC分类号： G11B5/33 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/4906 , Y10T29/49062 , Y10T29/49064
摘要： Aggressive (i.e. tight tolerance) stitching offers several advantages for magnetic write heads but at the cost of some losses during pole trimming. This problem has been overcome by replacing the alumina filler layer, that is used to protect the stitched pole during trimming, with a layer of electro-plated material. Because of the superior step coverage associated with the plating method of deposition, pole trimming can then proceed without the introduction of stresses to the stitched pole while it is being trimmed.
摘要翻译：积极（即紧公差）缝合为磁性写入头提供了几个优点，但是在极修整期间以一些损失为代价。通过用一层电镀材料代替在修整期间用于保护缝合极的氧化铝填料层已经克服了这个问题。由于与沉积电镀方法相关的优越的台阶覆盖，因此可以进行极细修剪，而不会在缝合极被修剪时引入应力。

17. 发明申请

US20050094319A1 Two-piece magnetic shield having improved heat dissipation 有权
标题翻译：具有改善散热性能的两件式磁屏蔽
公开(公告)号：US20050094319A1
公开(公告)日：2005-05-05
申请号：US10696431
申请日：2003-10-29
申请人： Cherng-Chyi Han , Rod Lee , Mao-Min Chen , Pokang Wang
发明人： Cherng-Chyi Han , Rod Lee , Mao-Min Chen , Pokang Wang
IPC分类号： G11B5/127 , G11B5/31 , G11B5/33
CPC分类号： G11B5/3136 , G11B5/3133 , Y10T29/49039 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： Problems such as thermal pole tip protrusion result from thermal mismatch between the alumina and pole material during the writing process. This, and similar problems due to inadequate heat dissipation, have been overcome by dividing the bottom shield into two pieces both of which sit on top of a non-magnetic heat sink. Heat generated by the coil during writing is transferred to the non-magnetic heat sink whence it gets transferred to the substrate. With this approach, the head not only benefits from less field disturbance due to the small shield but also improves heat dissipation from the additional heat sink
摘要翻译：在写入过程中，由于氧化铝和极材料之间的热失配，导致热极尖突出的问题。通过将底部屏蔽分成两个位于非磁性散热器顶部的两个部件，已经克服了由于不充分散热引起的这种和类似的问题。在写入期间由线圈产生的热量被传递到非磁性散热器，因为它被传送到基板。采用这种方法，由于小屏蔽，头部不但受益于较少的场干扰，还可以改善附加散热器的散热

18. 发明授权

US06583966B2 Method to make a high data rate stitched writer for a giant magneto-resistive head 失效
标题翻译：为巨型磁阻头制作高数据速率缝合笔记的方法
公开(公告)号：US06583966B2
公开(公告)日：2003-06-24
申请号：US09956360
申请日：2001-09-20
申请人： Cherng-Chyi Han , Chyu Jiuh Torng , Mao-Min Chen
发明人： Cherng-Chyi Han , Chyu Jiuh Torng , Mao-Min Chen
IPC分类号： G11B5139
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3146 , G11B5/3163 , G11B5/3967 , G11B2005/3996 , Y10T29/49021 , Y10T29/49025 , Y10T29/49032
摘要： A high data-rate stitched pole magnetic read/write-head combining sputtered and plated high magnetic moment materials and a method for fabricating same. The plating and stitching aspects of this fabrication allow the formation of a very narrow write-head, while the sputtering permits the use of high magnetic moment materials having high resistivity and low coercivity.
摘要翻译：组合溅射和电镀高磁矩材料的高数据速率缝合磁极读/写头及其制造方法。该制造的电镀和缝合方面允许形成非常窄的写入头，而溅射允许使用具有高电阻率和低矫顽力的高磁矩材料。

19. 发明授权

US06307721B1 Thin read gap magnetoresistive (MR) sensor element and method for fabrication thereof 有权
标题翻译：薄读磁隙（MR）传感元件及其制造方法
公开(公告)号：US06307721B1
公开(公告)日：2001-10-23
申请号：US09148558
申请日：1998-09-04
申请人： Mao-Min Chen , Cherng-Chyi Han , Cheng T. Horng
发明人： Mao-Min Chen , Cherng-Chyi Han , Cheng T. Horng
IPC分类号： G11B539
CPC分类号： G11B5/3954 , G11B5/3903
摘要： A magnetoresistive (MR) sensor element and a method for fabricating the magnetoresistive (MR) sensor element. There is first provided a substrate. There is then formed over the substrate a first shield layer. There is then formed upon the first shield layer a first dielectric spacer layer. There is then formed upon the first dielectric spacer layer a patterned magnetoresistive (MR) layer. There is then formed adjacent to and electrically communicating with a pair of opposite ends of the patterned magnetoresistive (MR) layer a pair of patterned conductor lead layers to define a trackwidth of the patterned magnetoresistive (MR) layer. There is then formed upon the pair of patterned conductor lead layers and upon the patterned magnetoresistive (MR) layer at the trackwidth of the patterned magnetoresistive (MR) layer a blanket second dielectric spacer layer. Finally, there is then formed upon the blanket second dielectric spacer layer a second shield layer, where a first thickness of the blanket second dielectric spacer layer separating a patterned conductor lead layer within the pair of patterned conductor lead layers from the second shield layer is greater than a second thickness of the blanket second dielectric spacer layer separating the patterned magnetoresistive (MR) layer from the second shield layer within the trackwidth of the patterned magnetoresistive (MR) layer. The method contemplates a magnetoresistive (MR) sensor element fabricated in accord with the method.
摘要翻译：磁阻（MR）传感器元件和制造磁阻（MR）传感器元件的方法。首先提供基板。然后在衬底上形成第一屏蔽层。然后在第一屏蔽层上形成第一电介质隔离层。然后在第一电介质隔离层上形成图案化磁阻（MR）层。然后形成为与图案化磁阻（MR）层的一对相对端相邻并与其电连通一对图案化的导体引线层，以限定图案化磁阻（MR）层的轨道宽度。然后形成在一对图案化导体引线层上，并且在图案化磁阻（MR）层的轨道宽度处的图案化磁阻（MR）层上形成毯式第二介电隔离层。最后，然后在第二绝缘间隔层上形成第二屏蔽层，其中第一厚度的第二绝缘隔离层将第一屏蔽层内的图案化导体引线层中的图案化导体引线层分离，比在图案化磁阻（MR）层的轨道宽度内将图案化磁阻（MR）层与第二屏蔽层分离的第二厚度的第二介电隔离层的厚度。该方法考虑了根据该方法制造的磁阻（MR）传感器元件。

20. 发明授权

US6103136A Method for forming a soft adjacent layer (SAL) magnetoresistive (MR) sensor element with transversely magnetically biased soft adjacent layer (SAL) 失效
公开(公告)号：US6103136A
公开(公告)日：2000-08-15
申请号：US46007
申请日：1998-03-23
申请人： Cherng-Chyi Han , Mao-Min Chen , Cheng Tzong Horng , Po-Kang Wang , Chyu Jiuh Torng , Kochan Ju
发明人： Cherng-Chyi Han , Mao-Min Chen , Cheng Tzong Horng , Po-Kang Wang , Chyu Jiuh Torng , Kochan Ju
IPC分类号： G01R33/09 , G11B5/39 , B44C1/22
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/3932 , Y10T29/49048
摘要： A method for fabricating a soft adjacent layer (SAL) magnetoresistive (MR) sensor element and several soft adjacent layer (SAL) magnetoresistive (MR) sensor elements which may be fabricated employing the method. There is first provided a substrate. There is formed over the substrate a dielectric layer, where the dielectric layer has a first surface of the dielectric layer and a second surface of the dielectric layer opposite the first surface of the dielectric layer. There is also formed over the substrate a magnetoresistive (MR) layer contacting the first surface of the dielectric layer. There is also formed over the substrate a soft adjacent layer (SAL), where the soft adjacent layer (SAL) has a first surface of the soft adjacent layer (SAL) and a second surface of the soft adjacent layer (SAL). The first surface of the soft adjacent layer (SAL) contacts the second surface of the dielectric layer. Finally, there is also formed over the substrate a transverse magnetic biasing layer, where the transverse magnetic biasing layer contacts the second surface of the soft adjacent layer (SAL), and where at least one of the dielectric layer, the magnetoresistive (MR) layer, the soft adjacent layer (SAL) and the transverse magnetic biasing layer is a patterned layer formed employing an etch mask which serves as a lift-off stencil for forming a patterned second dielectric layer adjoining an edge of the patterned layer. The invention also contemplates a soft adjacent layer (SAL) magnetoresistive (MR) sensor element formed with the magnetoresistive (MR) layer interposed between the substrate and the soft adjacent layer (SAL). Similarly, the invention also contemplates a soft adjacent layer (SAL) magnetoresistive (MR) sensor element employing a transverse magnetic biasing layer formed of a hard bias permanent magnet material.

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