专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06470566B2 ESD protection during GMR head fabrication 失效
标题翻译： GMR头制造期间的ESD保护
公开(公告)号：US06470566B2
公开(公告)日：2002-10-29
申请号：US09754139
申请日：2001-01-03
申请人： Richard Hsiao , Edward Hin Pong Lee , Timothy J. Moran , Joseph Francis Smyth , Howard Gordon Zolla
发明人： Richard Hsiao , Edward Hin Pong Lee , Timothy J. Moran , Joseph Francis Smyth , Howard Gordon Zolla
IPC分类号： G11B5127
CPC分类号： G11B5/3903 , G11B5/3163 , G11B5/3173 , G11B5/40 , Y10T29/49032 , Y10T29/49043
摘要： To protect the MR read head element from ESD damage during wafer level manufacturing, a lead from the MR element is electrically connected to one or both of the read head element shields during manufacturing. In a preferred embodiment of the present invention, the electrical connection is fabricated in the kerf area between adjacent magnetic heads as they are fabricated upon a wafer substrate. Thereafter, when the magnetic heads are separated by saw cutting through the kerf areas, the electrical connections are thereby removed, such that the MR element electrical leads and the shields are electrically isolated. In an alternative embodiment, one or more of the shields, as well as the MR element leads can also be electrically connected to the substrate upon which the magnetic head is fabricated. In further alternative embodiments, the electrical connection between one or more of the shields and the MR element electrical lead can be fabricated within the magnetic head area, rather than in the kerf area, and a suitable resistance is fabricated into the interconnecting circuit. In this embodiment, the electrical interconnection between the MR element electrical lead and one or more of the shields has a pre-designed electrical resistance and it remains in the magnetic head following fabrication.
摘要翻译：为了在晶片级制造期间保护MR读取头元件免受ESD损坏，来自MR元件的引线在制造期间电连接到读头元件屏蔽中的一个或两个。在本发明的优选实施例中，当在晶片衬底上制造时，在相邻磁头之间的切口区域中制造电连接。此后，当通过锯切通过切口区域分离磁头时，由此去除电连接，使得MR元件电引线和屏蔽件电隔离。在替代实施例中，一个或多个屏蔽件以及MR元件引线也可以电连接到其上制造磁头的基板。在另外的替代实施例中，一个或多个屏蔽件和MR元件电引线之间的电连接可以制造在磁头区域内，而不是在切口区域中，并且在互连电路中制造合适的电阻。在该实施例中，MR元件电引线与一个或多个屏蔽之间的电互连具有预先设计的电阻，并且在制造之后它保持在磁头中。

2. 发明授权

US06859347B2 Magnetic transducer with electrically conductive shield for reducing electromagnetic interference 失效
标题翻译：具有导电屏蔽的磁性换能器，用于减少电磁干扰
公开(公告)号：US06859347B2
公开(公告)日：2005-02-22
申请号：US09756377
申请日：2001-01-04
申请人： Richard Hsiao , Klaas Berend Klaassen , Edward Hing Pong Lee , Timothy J. Moran , Vladimir Nikitin , Michael Paul Salo , Samuel Wei-San Yuan
发明人： Richard Hsiao , Klaas Berend Klaassen , Edward Hing Pong Lee , Timothy J. Moran , Vladimir Nikitin , Michael Paul Salo , Samuel Wei-San Yuan
IPC分类号： G11B5/11 , G11B5/31 , G11B5/33 , G11B5/39 , G11B5/48
CPC分类号： G11B5/4853 , G11B5/11 , G11B5/3143 , G11B5/33 , G11B5/3903 , G11B5/486 , Y10T29/49032
摘要： A magnetic transducer including an electrically conductive shield (ECS) which is disposed between the substrate and first magnetic shield is described. The ECS is preferably embedded in an insulating undercoat layer. The ECS is preferably electrically isolated from the magnetic sensor element and is externally connected to a ground available in the disk drive through the arm electronics. Two alternative ways for connecting the ECS to a ground are described. In one embodiment which is only effective with single-ended input type arm electronics, the ECS is connected to a ground through a via to a lead pad for the read head which is connected to the ground of the arm electronics. In a second and more preferred embodiment a separate lead pad is included on the head to allow the ECS to be connected to electronic or case ground when the head is installed in the arm. The extent of the ECS should be sufficiently large to cover the read head portion of the transducer, i.e., from the edge of the first magnetic shield to the outer edges of the read contact pads, but should preferably not cover the write head pads.
摘要翻译：描述了包括设置在基板和第一磁屏蔽之间的导电屏蔽（ECS）的磁换能器。 ECS优选地嵌入绝缘底涂层中。 ECS优选地与磁传感器元件电隔离，并且通过臂电子器件外部连接到盘驱动器中可用的地面。描述了将ECS连接到地面的两种替代方式。在一个实施例中，其仅对单端输入型臂电子器件有效，ECS通过通孔连接到地面，用于连接到臂电子器件的地面的用于读头的引线板。在第二和更优选的实施例中，头部包括单独的引线板，以便当头部安装在臂中时，允许ECS连接到电子或壳体接地。 ECS的范围应该足够大以覆盖换能器的读头部分，即从第一磁屏蔽的边缘到读接触焊盘的外边缘，但是最好不覆盖写头焊盘。

3. 发明授权

US06621081B2 Method of pole tip sample preparation using FIB 失效
公开(公告)号：US06621081B2
公开(公告)日：2003-09-16
申请号：US09758305
申请日：2001-01-10
申请人： Timothy J. Moran
发明人： Timothy J. Moran
IPC分类号： G01N2300
CPC分类号： G01N1/32 , H01J2237/31745
摘要： The improved process according to the invention prepares samples for subsequent imaging by directing the FIB beam so that its incident angle is not parallel to the planar boundaries between the materials with different etch rates. This nonparallel alignment has the effect of evening out the etch rate, since most of the key beamlets cut more than one type of material. SEM images of the resulting samples are easier to interpret than those produced by the prior art since the obscuring effect of curtaining is reduced. This allows greater accuracy of measurement from the image obtained by an SEM. A method according to a preferred embodiment of the invention is used to prepare a pole piece tip of a magnetic transducer so that the bottom width may be more accurately measured.

4. 发明授权

US06857181B2 Method of making a T-shaped write head with less side writing 有权
公开(公告)号：US06857181B2
公开(公告)日：2005-02-22
申请号：US10217768
申请日：2002-08-12
申请人： Jyh-Shuey (Jerry) Lo , Timothy J. Moran
发明人： Jyh-Shuey (Jerry) Lo , Timothy J. Moran
IPC分类号： G11B5/31 , G11B5/33 , G11B5/39 , G11B5/127 , H04R31/00
CPC分类号： B82Y10/00 , G11B5/3103 , G11B5/3116 , G11B5/313 , G11B5/332 , G11B5/3967 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046
摘要： First, second and third pole tip components of a write head are formed with the second pole tip located between the first and third components and a write gap layer located between the first and second pole tip components. The second pole tip is formed with a width that defines a track width of the write head. The third pole tip component is formed with top and bottom surfaces wherein the bottom surface interfaces a top surface of the second pole tip component and has a width equal to the track width and wherein the top surface of the third pole tip has a width greater than the track width.

5. 发明授权

US06678127B2 Device and method of reducing ESD damage in thin film read heads which enables measurement of gap resistances and method of making 失效
标题翻译：减薄薄膜读取头中的ESD损伤的装置和方法，能够测量间隙电阻和制作方法
公开(公告)号：US06678127B2
公开(公告)日：2004-01-13
申请号：US09753804
申请日：2001-01-02
申请人： Richard Hsiao , James D. Jarratt , Emo Hilbrand Klaassen , Ian Robson McFadyen , Timothy J. Moran
发明人： Richard Hsiao , James D. Jarratt , Emo Hilbrand Klaassen , Ian Robson McFadyen , Timothy J. Moran
IPC分类号： G11B540
CPC分类号： B82Y10/00 , G11B5/33 , G11B5/3967 , G11B5/40 , G11B5/455 , G11B33/10 , G11B2005/0013 , Y10T29/49032 , Y10T29/49036 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49071 , Y10T29/49073 , Y10T29/49078
摘要： A first read gap layer has a resistance RG1 between a first shield layer and one of the first and second lead layers of a read head and the second read gap layer has a resistance RG2 between a second shield layer and said one of the first and second lead layers of the read head. A connection is provided via a plurality of resistors between a first node and each of the first and second shield layers wherein the plurality of resistors includes at least first and second resistors RS1 and RS2 and the first node is connected to said one of the first and second lead layers. A second node is located between the first and second resistors RS1 and RS2. An operational amplifier has first and second inputs connected to the first and second nodes respectively so as to be across the first resistor RS1 and has an output connected to the first node for maintaining the first and second nodes at a common voltage potential. In a first embodiment the first and second shield layers are shorted together. A test instrument is then employed for determining the combined parallel resistance of the resistors RS1 and RS2 by having a first side of the test instrument connected to the first node and the second side connected to each of the first and second shield layers. In the second embodiment a third resistor RS3 is connected between the second node and one of the shield layers, such as the second shield layer. The test instrument can determine the resistances of the first and second gap layers separately by being connected between the first node and the first shield layer for the resistance of the first gap layer or between the first node and the second shield layer for the resistance of the second gap layer.
摘要翻译：第一读取间隙层在第一屏蔽层和读取头的第一和第二引线层中的一个之间具有电阻RG1，并且第二读取间隙层在第二屏蔽层和第一和第二引线之间的电阻RG2 读头的引导层。通过第一节点和第一和第二屏蔽层中的每一个之间的多个电阻器提供连接，其中多个电阻器至少包括第一和第二电阻器RS1和RS2，并且第一节点连接到第一和第二屏蔽层中的所述第一和第二屏蔽层第二铅层。第二节点位于第一和第二电阻器RS1和RS2之间。运算放大器具有分别连接到第一和第二节点的第一和第二输入，以跨过第一电阻器RS1并且具有连接到第一节点的输出，用于将第一和第二节点维持在共同的电压电位。在第一实施例中，第一和第二屏蔽层被短路在一起。然后通过使测试仪器的第一侧连接到第一节点并且第二侧连接到第一和第二屏蔽层中的每一个，然后采用测试仪器来确定电阻器RS1和RS2的组合并联电阻。在第二实施例中，第三电阻器RS3连接在第二节点和其中一个屏蔽层之间，例如第二屏蔽层。测试仪器可以通过连接在第一节点和第一屏蔽层之间来分别确定第一和第二间隙层的电阻，用于第一间隙层的电阻或第一节点和第二屏蔽层之间的电阻，第二间隙层。

6. 发明授权

US06574854B1 Method for reducing magnetic head write gap curvature of a plated write gap 失效
标题翻译：降低电镀写入间隙的磁头写入间隙曲率的方法
公开(公告)号：US06574854B1
公开(公告)日：2003-06-10
申请号：US09605168
申请日：2000-06-27
申请人： Timothy J. Moran
发明人： Timothy J. Moran
IPC分类号： G11B5127
CPC分类号： G11B5/3116 , G11B5/23 , G11B5/232 , G11B5/3163 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048
摘要： A method for forming a magnetic head to solve the curved electrodeposited write gap layer problem by initially fabricating the write gap layer to be wider than the intended final P2 pole tip width. Ion milling the sides of the P2 pole tip structure is then performed to remove the curved outer portions of the write gap layer and to thereby fabricate a P2 pole tip having the desired pole tip width. Specifically, following the electrodepositing of the write gap layer and P2 pole tip thereon, an ion milling step is conducted to remove material from the sidewalls of the P2 pole tip including the write gap layer. The ion milling step is preferably conducted utilizing a broad beam ion milling device that is directed to the surface of the substrate upon which the magnetic heads are being fabricated. Preferably, the ion beam is directed at an angle of approximately 70° away from normal to the substrate surface such that milling of the head side surfaces is efficiently accomplished. Following the ion milling step the curved edges of the write gap layer are removed and the P2 pole tip width is narrowed to its desired dimension. Thereafter, further well known fabrication steps are conducted to complete the fabrication of the magnetic head.
摘要翻译：通过最初制造写入间隙层比预期的最终P2极尖宽度宽的方法，形成磁头来解决弯曲的电沉积写间隙层问题的方法。然后对P2极端部结构的侧面进行离子铣削，以去除写入间隙层的弯曲外部部分，从而制造具有所需磁极尖端宽度的P2极尖端。具体地说，在写入间隙层和P2极端部电沉积之后，进行离子研磨步骤以从包括写入间隙层的P2极端子的侧壁去除材料。离子研磨步骤优选使用被引导到正在制造磁头的基底的表面的宽束离子研磨装置进行。优选地，离子束以与基板表面法线成大约70°的角度被引导，使得头侧表面的铣削被有效地实现。在离子铣削步骤之后，去除写间隙层的弯曲边缘，并将P2极尖端宽度变窄到其所需的尺寸。此后，进行进一步公知的制造步骤以完成磁头的制造。

7. 发明授权

US5747997A Spin-valve magnetoresistance sensor having minimal hysteresis problems 失效
标题翻译：旋转阀磁阻传感器具有极小的滞后问题
公开(公告)号：US5747997A
公开(公告)日：1998-05-05
申请号：US655222
申请日：1996-06-05
申请人： E. Dan Dahlberg , Timothy J. Moran
发明人： E. Dan Dahlberg , Timothy J. Moran
IPC分类号： G01C17/30 , G01R33/04 , G01R33/09 , G11B5/00 , G11B5/012 , G11B5/39 , G11B5/465 , H01F10/32 , H01L43/10 , G01C17/00
CPC分类号： B82Y25/00 , B82Y10/00 , G01C17/30 , G01R33/04 , G01R33/09 , G11B5/3903 , G11B5/3932 , G11B5/399 , G11B5/465 , H01F10/32 , H01F10/324 , H01L43/10 , G11B2005/0016 , G11B2005/3996 , G11B5/012 , H01F10/3295
摘要： The present invention provides a method and apparatus for utilizing spin valve magnetoresistance devices for the measurement of weak magnetic fields. The magnetoresistive element consists of a pinned ferromagnetic layer and a soft ferromagnetic layer separated by a thin spacer layer. The pinned layer may be pinned by high intrinsic coercivity, or by a neighboring antiferromagnet or high coercivity ferromagnet layer. An oscillating magnetic field is applied to the device. The amplitude of the excitation field is large enough to reverse the magnetization of the soft layer during each cycle, but small enough that the magnetization direction of the pinned layer is not much affected. In one embodiment, the applied field is applied using a current strip deposited onto the top of the other layers, so that the entire device can be produced on a single chip.
摘要翻译：本发明提供一种利用自旋阀磁阻器件测量弱磁场的方法和装置。磁阻元件由钉扎的铁磁层和由薄间隔层隔开的软铁磁层组成。被钉扎层可以被高的固有矫顽力或相邻的反铁磁体或高矫顽力铁磁体层固定。振荡磁场被施加到该装置。励磁场的振幅足够大以在每个周期期间逆转软层的磁化，但足够小以致被钉扎层的磁化方向不受影响。在一个实施例中，使用沉积在其它层的顶部上的电流条施加所施加的场，使得整个器件可以在单个芯片上制造。

8. 发明授权

US09395418B2 System and method for determining the state of health of electrochemical battery cells 有权
标题翻译：确定电化学电池的健康状况的系统和方法
公开(公告)号：US09395418B2
公开(公告)日：2016-07-19
申请号：US13494383
申请日：2012-06-12
申请人： Azizur Rahaman , Timothy J. Moran
发明人： Azizur Rahaman , Timothy J. Moran
IPC分类号： G01R31/36
CPC分类号： G01R31/3679
摘要： A system and method for determining the state of health of a battery. In particular, the present invention is related to a system and method for determining the state of health of an electrochemical battery cell by obtaining state of charge measurements for the battery cell, and using the state of charge measurements to calculate the state of health of the battery cell, wherein the state of charge measurements are based on the magnetic susceptibility of the battery cell. The system includes a sensing device for measuring the magnetic susceptibility of the battery cell, and a computing device for performing the steps of the disclosed method.
摘要翻译：一种用于确定电池的健康状况的系统和方法。特别地，本发明涉及通过获取电池单元的电荷测量状态来确定电化学电池单元的健康状态的系统和方法，并且使用充电状态测量来计算电池的健康状况电池单元，其中电荷状态测量基于电池单元的磁化率。该系统包括用于测量电池单元的磁化率的感测装置和用于执行所公开方法的步骤的计算装置。

9. 发明申请

US20120316814A1 SYSTEM AND METHOD FOR DETERMINING THE STATE OF HEALTH OF ELECTROCHEMICAL BATTERY CELLS 有权
标题翻译：用于确定电化学电池的健康状态的系统和方法
公开(公告)号：US20120316814A1
公开(公告)日：2012-12-13
申请号：US13494383
申请日：2012-06-12
申请人： Azizur Rahaman , Timothy J. Moran
发明人： Azizur Rahaman , Timothy J. Moran
IPC分类号： G01R31/36
CPC分类号： G01R31/3679
摘要： A system and method for determining the state of health of a battery. In particular, the present invention is related to a system and method for determining the state of health of an electrochemical battery cell by obtaining state of charge measurements for the battery cell, and using the state of charge measurements to calculate the state of health of the battery cell, wherein the state of charge measurements are based on the magnetic susceptibility of the battery cell. The system includes a sensing device for measuring the magnetic susceptibility of the battery cell, and a computing device for performing the steps of the disclosed method.
摘要翻译：一种用于确定电池的健康状况的系统和方法。特别地，本发明涉及通过获取电池单元的电荷测量状态来确定电化学电池单元的健康状态的系统和方法，并且使用充电状态测量来计算电池的健康状况电池单元，其中电荷状态测量基于电池单元的磁化率。该系统包括用于测量电池单元的磁化率的感测装置和用于执行所公开方法的步骤的计算装置。

10. 发明授权

US07349180B2 Magnetic head assembly that has an air bearing surface 有权
标题翻译：具有空气轴承表面的磁头组件
公开(公告)号：US07349180B2
公开(公告)日：2008-03-25
申请号：US11003906
申请日：2004-12-02
申请人： Jyh-Shney (Jerry) Lo , Timothy J. Moran
发明人： Jyh-Shney (Jerry) Lo , Timothy J. Moran
IPC分类号： G11B5/147
CPC分类号： B82Y10/00 , G11B5/3103 , G11B5/3116 , G11B5/313 , G11B5/332 , G11B5/3967 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046
摘要： First, second and third pole tip components of a write head are formed with the second pole tip located between the first and third components and a write gap layer located between the first and second pole tip components. The second pole tip is formed with a width that defines a track width of the write head. The third pole tip component is formed with top and bottom surfaces wherein the bottom surface interfaces a top surface of the second pole tip component and has a width equal to the track width and wherein the top surface of the third pole tip has a width greater than the track width.
摘要翻译：首先，写头的第二和第三极尖部分形成有位于第一和第三部件之间的第二极尖端和位于第一和第二极尖部分之间的写入间隙层。第二极端部形成有限定写入头的轨道宽度的宽度。第三极尖部分形成有顶表面和底表面，其中底表面接合第二极尖部分的顶表面并且具有等于轨道宽度的宽度，并且其中第三极尖端的顶表面具有大于轨道宽度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式