公开(公告)号：US06870706B1

公开(公告)日：2005-03-22

申请号：US10213561

申请日：2002-08-07

申请人： Li-Yan Zhu

发明人： Li-Yan Zhu

IPC分类号： G11B5/39 ,  G11B5/40 ,  G11B5/48 ,  H05K1/02 ,  G11B5/127

CPC分类号： G11B5/3906 ,  G11B5/40 ,  G11B5/4806 ,  H05K1/0254

摘要： A method for preventing electrostatic discharge (ESD) damage in the head-suspension assembly (HSA) construction process. The method teaches the formation of a novel GMR magnetic recording head on a conductive slider substrate, the GMR head being electrically connected to the substrate and its conducting leads having balanced resistances between the leads and the substrate. By establishing an electrical connection between the GMR head and the slider substrate, the entire HSA can be grounded during its construction. By also grounding any nearby conducting elements that could inadvertently contact the HSA or its parts, no accumulated tribocharges can discharge through the sensitive GMR sensor element.

摘要翻译： 一种用于防止头悬挂组件（HSA）施工过程中的静电放电（ESD）损坏的方法。 该方法教导了在导电滑块基板上形成新颖的GMR磁记录头，该GMR磁头电连接到该基板，并且其导电引线在引线和基板之间具有平衡的电阻。 通过在GMR头和滑块基板之间建立电连接，整个HSA可在其施工期间接地。 通过将任何可能无意中接触HSA或其部件的导电元件接地，也不会通过敏感的GMR传感器元件放电累积的摩托车充电。

公开(公告)号：US20050036242A1

公开(公告)日：2005-02-17

申请号：US10949966

申请日：2004-09-23

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B5/31 ,  G11B5/39 ,  G11B5/40 ,  H01L43/08 ,  G11B5/33 ,  G11B5/127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/3903 ,  G11B5/40 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49044 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T428/1121 ,  Y10T428/1157 ,  Y10T428/24612

摘要： In a thin-film magnetic head having a multilayered film developing a magnetoresistive effect, which is present between an upper shielding layer and a lower shielding layer both formed above an AlTiC substrate, a recess for defining the lower shielding layer is formed in an underlayer present on a surface of the AlTiC substrate, and a lower shielding layer made of NiFe is provided in the recess. A SiO2 film is interposed between the underlayer and the lower shielding layer.

摘要翻译： 在具有在AlTiC基板上形成的上屏蔽层和下屏蔽层之间存在的形成磁阻效应的多层膜的薄膜磁头中，形成用于限定下屏蔽层的凹部，形成在底层中 在AlTiC基板的表面上，并且在凹部中设置由NiFe制成的下屏蔽层。 SiO 2膜介于底层和下屏蔽层之间。

公开(公告)号：US06847505B2

公开(公告)日：2005-01-25

申请号：US10099337

申请日：2002-03-14

申请人： Jih-Shiuan Luo

发明人： Jih-Shiuan Luo

IPC分类号： G11B5/48 ,  G11B5/40

CPC分类号： G11B5/486

摘要： The present invention couples shunting pads to the conductor leads of a suspension assembly for supporting a slider in a magnetic storage system, which can be use to temporarily shunt the leads to prevent against damage to the heads by electrostatic discharge. In one embodiment, the suspension assembly includes shunting pads that are sized and positioned to allow shunting using a probe. In another embodiment, a suspension assembly includes a built-in shunting tab that when applied, temporarily shunts the MR read head and prevents any transient voltage from developing across the head. In a further embodiment a tool having multiple probes is integrated into a jig, which is used for holding and shunting one or more suspension assemblies during processing. In one embodiment, the present invention is applied to an integrated lead suspension assembly.

摘要翻译： 本发明将分流垫耦合到用于支撑磁存储系统中的滑块的悬架组件的导体引线，其可用于临时分流引线以防止通过静电放电而损坏磁头。 在一个实施例中，悬架组件包括分流垫，其尺寸和位置被设置成允许使用探头分流。 在另一个实施例中，悬架组件包括内置的分流片，当应用时，临时分流MR读取头并防止任何瞬态电压跨越头部。 在另一实施例中，具有多个探针的工具集成到夹具中，其用于在加工期间保持和分流一个或多个悬架组件。 在一个实施例中，本发明应用于集成的铅悬挂组件。

公开(公告)号：US06166880A

公开(公告)日：2000-12-26

申请号：US259154

申请日：1994-06-13

申请人： Atsuo Kobayashi ,  Mikio Matsuzaki

发明人： Atsuo Kobayashi ,  Mikio Matsuzaki

IPC分类号： G11B5/31 ,  G11B5/40 ,  G11B33/12 ,  G11B5/127

CPC分类号： G11B5/3106 ,  G11B5/40 ,  G11B33/12 ,  G11B33/122

摘要： A thin film magnetic head includes a slider and a thin film magnetic transducing element, wherein the slider is provided with an insulating film on a surface of an electric conductive substrate, the thickness of the insulating film being in a range of 0.5 .mu.m-3 .mu.m, and the thin film magnetic transducing element is formed on the insulating film and has a thin film magnetic circuit including a magnetic film and a coil film.

摘要翻译： 薄膜磁头包括滑块和薄膜磁转换元件，其中滑块在导电基板的表面上设置有绝缘膜，绝缘膜的厚度在0.5μm-3的范围内 并且薄膜磁转换元件形成在绝缘膜上，并且具有包括磁性膜和线圈膜的薄膜磁路。

公开(公告)号：US06163218A

公开(公告)日：2000-12-19

申请号：US451914

申请日：1999-12-01

申请人： Takashi Hashimoto ,  Yuji Nagaya ,  Masaki Yoshinaga ,  Noriaki Hatanaka ,  Tatsuo Mochizuki ,  Katsuya Sonoyama

发明人： Takashi Hashimoto ,  Yuji Nagaya ,  Masaki Yoshinaga ,  Noriaki Hatanaka ,  Tatsuo Mochizuki ,  Katsuya Sonoyama

IPC分类号： G11B5/09 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/11 ,  G11B5/40 ,  G11B5/48 ,  G11B19/04 ,  G11B23/00 ,  H03F3/45

CPC分类号： H03F3/45269 ,  G11B5/012 ,  G11B5/11 ,  G11B5/40 ,  G11B5/4886 ,  G11B19/04 ,  G11B23/0007 ,  G11B2005/0016 ,  G11B2005/0018 ,  H03F3/45183 ,  H03F2203/45298 ,  H03F2203/45612 ,  Y10T29/4903

摘要： A very-small-signal amplifier is capable of amplifying very small signals with high sensitivity up to high frequencies while simplifying the circuit, and a magnetic disk storage apparatus realizes a reading operation over a wide band up to high frequencies with high sensitivity. The signal amplifier is a modified differential circuit including a first transistor of a first conductivity type and a second transistor of a second conductivity type each having a control terminal, a terminal of the input side and a terminal of the output side. The terminals on the input side are connected in common, and a current corresponding to the voltage difference across the control terminals is allowed to flow. A very small voltage signal generated by an input signal source is applied to the control terminal of said first transistor. A bias voltage is applied to the control terminal of the second transistor. Therefore, an amplified signal corresponding to the very small voltage signal generated by the input signal source is generated at the terminal on the output side of the second transistor.

摘要翻译： 一个非常小的信号放大器能够在高频率的情况下以高灵敏度放大非常小的信号，同时简化电路，而磁盘存储设备实现了高频高频，高灵敏度的宽带读取操作。 信号放大器是包括具有第一导电类型的第一晶体管和第二导电类型的第二晶体管的修改的差分电路，每个具有控制端子，输入侧的端子和输出侧的端子。 输入侧的端子共同连接，并且允许对应于控制端子两端的电压差的电流流动。 由输入信号源产生的非常小的电压信号被施加到所述第一晶体管的控制端。 偏压被施加到第二晶体管的控制端。 因此，在第二晶体管的输出侧的端子产生与输入信号源产生的非常小的电压信号对应的放大信号。

公开(公告)号：US6162582A

公开(公告)日：2000-12-19

申请号：US344904

申请日：1999-06-25

申请人： Richard Hsiao ,  Tsann Lin ,  Hugo Alberto Emilio Santini

发明人： Richard Hsiao ,  Tsann Lin ,  Hugo Alberto Emilio Santini

IPC分类号： G11B5/012 ,  G11B5/31 ,  G11B5/39 ,  G11B5/40 ,  G03F7/00

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/313 ,  G11B5/3133 ,  G11B5/3163 ,  G11B5/3903 ,  G11B5/3967 ,  G11B5/40 ,  G11B2005/3996

摘要： An MR read head has first and second lead layers protected by first, second and third insulation layers in addition to the first and second insulative gap layers substantially all the way from the side edges of an MR sensor to terminals. The first and second insulation layers do not extend outside of the first and second lead layer sites so that greater heat dissipation can be realized from the MR sensor. Each lead layer comprises first and second lead layer films. Where these films overlap for electrical connection their top and bottom surfaces are protected by the first and second insulation layers and their edges are protected by the third insulation layer. Where the first lead layer film extends from the second lead layer film toward the respective terminal its bottom surface is protected by the first insulation layer and its top surface and its side edges are protected by the third insulation layer. Only three masks are required for fabricating or constructing these components. The first liftoff mask is employed for defining the first insulation layer and the first lead layer film. The second liftoff mask is employed for depositing the second lead layer film on the first lead layer film with an end of the second lead layer film for defining the track width of the MR sensor and making a contiguous junction with a respective side edge of the MR sensor and then depositing a second insulation layer on the second lead layer film. A third liftoff mask is employed for masking the MR sensor site and the second lead layer film of the first and second lead layers so that the height of the MR sensor can be defined and the third insulation layer deposited.

摘要翻译： 除了基本上从MR传感器的侧边缘到端子的所有第一和第二绝缘间隙层之外，MR读取头具有由第一，第二和第三绝缘层保护的第一和第二引线层。 第一绝缘层和第二绝缘层不延伸到第一和第二引线层位置的外部，从而可以从MR传感器实现更大的散热。 每个引线层包括第一和第二引线层膜。 当这些膜重叠用于电连接时，其顶表面和底表面被第一和第二绝缘层保护，并且它们的边缘被第三绝缘层保护。 在第一引线层膜从第二引线层膜朝向各个端子延伸的情况下，其底表面被第一绝缘层及其顶表面保护，并且其侧边缘被第三绝缘层保护。 制造或构造这些部件只需要三个掩模。 采用第一剥离掩模来限定第一绝缘层和第一引线层膜。 第二剥离掩模用于在第一引线层膜上沉积第二引线层膜，第二引线层膜用于限定MR传感器的磁道宽度，并与MR的相应侧边缘形成连续的连接 传感器，然后在第二引线层膜上沉积第二绝缘层。 采用第三剥离掩模掩蔽第一和第二引线层的MR传感器位置和第二引线层膜，从而可以限定MR传感器的高度，并沉积第三绝缘层。

公开(公告)号：US6162305A

公开(公告)日：2000-12-19

申请号：US344253

申请日：1999-06-25

申请人： Richard Hsiao ,  Daniele Mauri ,  Neil Leslie Robertson

发明人： Richard Hsiao ,  Daniele Mauri ,  Neil Leslie Robertson

IPC分类号： G11B5/012 ,  G11B5/31 ,  G11B5/33 ,  G11B5/39 ,  G11B5/40 ,  C23C8/04

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3133 ,  G11B5/332 ,  G11B5/3903 ,  G11B5/3967 ,  G11B5/40 ,  G11B2005/3996 ,  Y10S148/117 ,  Y10T29/49032

摘要： A method is provided for providing extra insulation between lead layers and first and second shield layers of a read head so as to prevent electrical shorting therebetween. A sensor layer is partially formed with a capping layer of a first oxidizable metallic layer. A lead layer is formed with a second oxidizable metallic capping layer thereon. A rear edge of the partially completed sensor is then formed followed by formation of an insulation layer which seals the rear edge. The wafer, upon which the components are constructed, is then subjected to an oxygen-based plasma which oxidizes the oxidizable layers with the second oxidizable metallic layers oxidizing at a faster rate than the first oxidizable metallic layer. The second oxidized layer then provides the desired extra insulation between the lead layers and the second shield layer. The read head produced by the method includes a sensor layer and first and second lead layers. A first metal oxide layer is on the sensor layer and a sensor layer and a second metal oxide layer is on each of the first and second lead layers. The sensor layer, the first and second lead layers and the first and second metal oxide layers are located between first and second gap layers and the first and second gap layers are located between first and second shield layers.

摘要翻译： 提供了一种用于在引线层与读取头的第一和第二屏蔽层之间提供额外的绝缘的方法，以防止它们之间的电短路。 传感器层部分地形成有第一可氧化金属层的覆盖层。 在其上形成有第二可氧化金属覆盖层的引线层。 然后形成部分完成的传感器的后边缘，然后形成密封后边缘的绝缘层。 然后，将构成部件的晶片经受氧基等离子体，其氧化可氧化层，第二可氧化金属层以比第一可氧化金属层更快的速率氧化。 然后，第二氧化层在引线层和第二屏蔽层之间提供所需的额外绝缘。 通过该方法制造的读取头包括传感器层和第一和第二引线层。 第一金属氧化物层位于传感器层上，传感器层和第二金属氧化物层位于第一和第二引线层中的每一个上。 传感器层，第一和第二引线层以及第一和第二金属氧化物层位于第一和第二间隙层之间，并且第一和第二间隙层位于第一和第二屏蔽层之间。

公开(公告)号：US6137646A

公开(公告)日：2000-10-24

申请号：US872771

申请日：1997-06-10

申请人： Eiji Okamura ,  Tatsuya Gofuku ,  Chihiro Ono ,  Kazuhide Ohba ,  Atsushi Satoh ,  Eisaku Takahashi ,  Takashi Tokairin ,  Isao Suda

发明人： Eiji Okamura ,  Tatsuya Gofuku ,  Chihiro Ono ,  Kazuhide Ohba ,  Atsushi Satoh ,  Eisaku Takahashi ,  Takashi Tokairin ,  Isao Suda

IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/40 ,  G11B5/48 ,  G11B5/55 ,  G11B5/596 ,  G11B21/08 ,  G11B25/04 ,  G11B33/00 ,  G11B5/09

CPC分类号： G11B25/043 ,  G11B21/083 ,  G11B33/00 ,  G11B5/5521 ,  G11B5/5534 ,  G11B5/596 ,  G11B2005/0018 ,  G11B5/012 ,  G11B5/40 ,  G11B5/486 ,  G11B5/59655

摘要： A disk apparatus has a disk medium with sector areas that have a servo area and a data area along the same cylinder. The servo areas also have a sector mark indicative of the servo area, a code indicative of a cylinder address, and a predetermined servo pattern to detect a head position, all magnetically recorded in the servo area. A disk control section uses a head portion to detect the head position on the basis of a read signal of the servo pattern and positions the head portion at an arbitrary cylinder to perform reading and writing operations. The disk apparatus also has a time measuring counter for starting to measure an elapsed time each time a predetermined position in the servo area is detected, and a time setting register for storing a time from a detection time point of the predetermined position in the servo area to the generation of the sector pulse. A coincidence detecting section is provided to detect that the elapsed time measured by the time measuring counter coincides with the set time of the register, while a pulse generating section is provided for generating the sector pulse when the coincidence is detected by the coincidence detecting section.

摘要翻译： 磁盘装置具有具有扇区区域的磁盘介质，其具有伺服区域和沿着同一气缸的数据区域。 伺服区域还具有指示伺服区域的扇区标记，指示气缸地址的代码以及检测头部位置的预定伺服模式，磁头记录在伺服区域中。 磁盘控制部分使用磁头部分来根据伺服模式的读取信号来检测磁头位置，并将磁头部分定位在任意磁盘上，以进行读写操作。 磁盘装置还具有时间测量计数器，用于每当检测到伺服区域中的预定位置时开始测量经过时间;以及时间设置寄存器，用于从伺服区域中的预定位置的检测时间点存储时间 到扇区脉冲的产生。 提供符合检测部分，用于检测由时间测量计数器测量的经过时间与寄存器的设定时间一致，同时提供脉冲发生部分，用于当由重合检测部分检测到重合时产生扇区脉冲。

公开(公告)号：US6128163A

公开(公告)日：2000-10-03

申请号：US350491

申请日：1999-07-09

申请人： Quinn Haddock ,  Patrick R. Wacker

发明人： Quinn Haddock ,  Patrick R. Wacker

IPC分类号： G11B5/012 ,  G11B5/10 ,  G11B5/105 ,  G11B5/39 ,  G11B5/40 ,  G11B5/48 ,  G11B5/58 ,  G11B5/60 ,  G11B19/04 ,  G11B21/21 ,  G11B17/32

CPC分类号： G11B5/6005 ,  G11B5/012 ,  G11B5/10 ,  G11B5/105 ,  G11B5/3903 ,  G11B5/40 ,  G11B19/04 ,  G11B5/3967 ,  G11B5/4886 ,  G11B5/58

摘要： A method of design of a magnetic recording slider and sensor geometry is disclosed which allows a magneto-resistive recording element to achieve a significantly reduced physical and magnetic spacing with a rigid magnetic recording disk in a disk drive, without resulting in thermal transients caused by sensor/disk contacts. The method utilizes pseudo-contact slider technology with an intentionally recessed MR sensor pole tip and alumina region. The reduced spacing achieved by pseudo-contact recording is significant compared to the spacing loss incurred by the proposed precision of the MR recording element, resulting in a net reduction in head medium magnetic spacing.

摘要翻译： 公开了一种设计磁记录滑块和传感器几何形状的方法，其允许磁阻记录元件与盘驱动器中的刚性磁记录盘实现显着降低的物理和磁间隔，而不会导致由传感器引起的热瞬变 /磁盘联系人。 该方法利用伪接触滑块技术，有意嵌入的MR传感器极尖和氧化铝区域。 通过伪接触记录实现的减小的间隔与由MR记录元件提出的精度引起的间隔损耗相比是显着的，导致头中间磁间隔的净减小。

公开(公告)号：US6115201A

公开(公告)日：2000-09-05

申请号：US40667

申请日：1998-03-18

申请人： Karl Louis Enarson ,  Deanne Sue Grover ,  Hieu Van Nguyen ,  John Michael Baker

发明人： Karl Louis Enarson ,  Deanne Sue Grover ,  Hieu Van Nguyen ,  John Michael Baker

IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/035 ,  G11B5/40 ,  G11B5/455 ,  G11B5/55 ,  G11B19/04 ,  G11B5/03

CPC分类号： G11B5/012 ,  G11B19/04 ,  G11B5/40 ,  G11B5/455 ,  G11B2005/0018 ,  G11B5/035 ,  G11B5/5534

摘要： An apparatus and method are disclosed for determining a maximum magnitude of bias current that can be safely applied to a head of a disc drive. The disc drive comprises a head disposed adjacent a rotatable disc having a recording surface on which data are magnetically stored, a preamplifier circuit which selectively applies bias currents to the head, and a head bias current selection circuit, operably coupled to the preamplifier circuit, which first determines the maximum magnitude of bias current that can be applied to the head in relation to a maximum power dissipation rating of the head and voltage measured across the head when at least one initial bias current of selected magnitude is applied to the head. Thereafter, a range of bias currents having different magnitudes less than or equal to the maximum magnitude are selected and evaluated to select an optimum magnitude for subsequent use by the drive.

摘要翻译： 公开了用于确定可以安全地施加到盘驱动器的头部的偏置电流的最大幅度的装置和方法。 磁盘驱动器包括一个与可旋转磁盘相邻设置的磁头，磁头具有数据被磁性存储的记录表面，选择性地向磁头施加偏置电流的前置放大器电路和可操作地耦合到前置放大器电路的磁头偏置电流选择电路， 当至少一个选定幅度的初始偏置电流施加到磁头时，首先确定可以施加到磁头的偏置电流的最大幅度相对于在头部测量的磁头和电压的最大功率损耗等级。 此后，选择并且评估具有小于或等于最大幅度的不同幅度的偏置电流范围，以选择用于驱动器后续使用的最佳量值。