公开(公告)号：US08021712B2

公开(公告)日：2011-09-20

申请号：US12406445

申请日：2009-03-18

申请人： Osamu Nakazawa ,  Nozomu Hachisuka ,  Tetsuya Hiraki

发明人： Osamu Nakazawa ,  Nozomu Hachisuka ,  Tetsuya Hiraki

IPC分类号： H05K3/02 ,  H05K3/30 ,  H01L21/301

CPC分类号： G11B5/00817 ,  G11B5/3993 ,  H01L43/12 ,  Y10T428/24355

摘要： The present invention relates to a wafer formed with an evaluation element and capable of improving productivity and a manufacturing method of an electronic component using the same. In a wafer according to the present invention, a plurality of elements connected to electrode films through lead-out conductive films are arranged and a chip area is defined for cutting out the plurality of elements in a given number. In the wafer, at least one evaluation element is formed in an area outside the chip area. The lead-out conductive films extend to the outside area and are connected to the evaluation elements. With this wafer, since the lead-out conductor is shared between the element and the evaluation element, the electrode film connected therewith can be shared, too. Accordingly, evaluation can be performed by using the evaluation element without the need of providing the wafer with a lead-out conductor and an electrode film exclusively for the evaluation element, so that the chip area to be cut out from the wafer can be made larger than before.

摘要翻译： 本发明涉及一种形成有评估元件并且能够提高生产率的晶片以及使用其的电子部件的制造方法。 在根据本发明的晶片中，布置了通过引出导电膜连接到电极膜的多个元件，并且限定了用于切割给定数量的多个元件的芯片面积。 在晶片中，在芯片区域外的区域中形成至少一个评估元件。 引出导电膜延伸到外部区域并连接到评估元件。 对于该晶片，由于引出导体在元件和评估元件之间共享，所以与其连接的电极膜也可以共享。 因此，可以通过使用评估元件进行评估，而不需要为评估元件专门提供引出导体和电极膜，从而可以使从晶片切出的芯片面积更大 比以前。

公开(公告)号：US07436633B2

公开(公告)日：2008-10-14

申请号：US11205072

申请日：2005-08-17

申请人： Hiroshi Kiyono ,  Tetsuya Kuwashima ,  Takeo Kagami ,  Noriaki Kasahara ,  Naoki Ohta ,  Nozomu Hachisuka

发明人： Hiroshi Kiyono ,  Tetsuya Kuwashima ,  Takeo Kagami ,  Noriaki Kasahara ,  Naoki Ohta ,  Nozomu Hachisuka

IPC分类号： G11B5/245

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/3912 ,  G11B5/3967 ,  G11B5/4826 ,  G11B2005/3996

摘要： A parasitic capacity C4 generated between a slider substrate and the first shield layer with the first insulating layer as a capacity layer is made substantially equal to a parasitic capacity C2 occurring between a lower magnetic layer and the second shield layer with the third insulating layer as a capacity layer. Preferably, a connection is made between the lower magnetic layer and the slider substrate by a resistance of preferably 100 (Ω) or lower. Thus, it is possible to provide a thin-film magnetic head that can hold back deterioration in a reproducing device and the occurrence of errors due to crosstalk between a recording device and the reproducing device and extraneous noises.

摘要翻译： 在第一绝缘层作为电容层的滑块基板与第一屏蔽层之间产生的寄生电容C 4大体上等于具有第三绝缘层的下磁层与第二屏蔽层之间的寄生电容C 2 作为容量层。 优选地，通过优选100（Ω）或更低的电阻在下磁性层和滑块基板之间形成连接。 因此，可以提供能够抑制再现装置中的劣化的薄膜磁头和由于记录装置与再现装置之间的串扰而引起的错误的发生以及无关的噪声。

公开(公告)号：US20060098349A1

公开(公告)日：2006-05-11

申请号：US11214711

申请日：2005-08-31

申请人： Noriaki Kasahara ,  Nozomu Hachisuka

发明人： Noriaki Kasahara ,  Nozomu Hachisuka

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G11B5/4826 ,  G11B5/31

摘要： In a thin film magnetic head of the present invention, lead formation patterns of a first lead for connection between a lower shield layer and a first extraction electrode portion and a second lead for connection between an upper shield layer and a second extraction electrode portion are each formed so as not to have an overlapping portion with a heatsink layer but to bypass the heatsink layer when observing from the upper shield layer side toward the lower shield layer in a transparent state in plan view. Therefore, it is possible to increase an effect of heat radiation to the substrate side on the basis of the presence of the heatsink layer to thereby limit propagation of heat to a magnetoresistive effect layer as much as possible and further to achieve a drastic improvement in recording and reproducing characteristics at high recording frequencies, i.e. frequency characteristics (f characteristics) in a high frequency region.

摘要翻译： 在本发明的薄膜磁头中，分别在下屏蔽层和第一引出电极部分之间连接的第一引线和上屏蔽层与第二引出电极部分之间的用于连接的第二引线的引线形成图案分别为 形成为在平面图中以透明状态从上屏蔽层侧向下屏蔽层观察时，不具有与散热层重叠的部分，而是绕过散​​热层。 因此，可以基于散热层的存在来增加对基板侧的散热效果，从而尽可能地限制热到磁阻效应层的传播，并进一步实现记录的急剧改善 并且在高记录频率下再现特性，即高频区域的频率特性（f特性）。

公开(公告)号：US08085496B2

公开(公告)日：2011-12-27

申请号：US11958123

申请日：2007-12-17

申请人： Nozomu Hachisuka ,  Naoki Ohta

发明人： Nozomu Hachisuka ,  Naoki Ohta

IPC分类号： G11B5/187 ,  G11B5/60 ,  G11B15/64 ,  G11B17/32 ,  G11B21/21

CPC分类号： G11B5/00813 ,  G11B5/3106 ,  G11B5/40

摘要： Provided is a thin-film magnetic head for reading data from a magnetic recording medium and/or writing data to a magnetic recording medium, in which the magnetic spacing can be controlled appropriately by stably adjusting the pressure working between the thin-film magnetic head and the magnetic recording medium according to the change of conditions such as the change over time. This thin-film magnetic head comprises at least one through hole reaching a surface opposed to the magnetic recording medium of the thin-film magnetic head, for adjusting a pressure working between the thin-film magnetic head and the magnetic recording medium. Preferably, the head further comprises at least one flow-amount control means for controlling the flow amount of gas that flows via the at least one through hole.

摘要翻译： 提供了一种用于从磁记录介质读取数据和/或将数据写入磁记录介质的薄膜磁头，其中可以通过稳定地调节薄膜磁头和 磁记录介质根据条件的变化，如随时间的变化。 该薄膜磁头包括到达与薄膜磁头的磁记录介质相对的表面的至少一个通孔，用于调节薄膜磁头和磁记录介质之间的压力。 优选地，头部还包括至少一个流量控制装置，用于控制经由至少一个通孔流动的气体的流量。

公开(公告)号：US07911743B2

公开(公告)日：2011-03-22

申请号：US11849636

申请日：2007-09-04

申请人： Nozomu Hachisuka ,  Yoshiyuki Mizoguchi ,  Hiroshi Yamazaki ,  Hideaki Sato

发明人： Nozomu Hachisuka ,  Yoshiyuki Mizoguchi ,  Hiroshi Yamazaki ,  Hideaki Sato

IPC分类号： G11B5/31

CPC分类号： G11B5/29 ,  G11B5/00826 ,  G11B5/11 ,  G11B5/3912 ,  G11B5/3948

摘要： Provided is a multichannel thin-film magnetic head having a plurality of read head elements neighboring with each other, each of which includes shield layers having a desired stable magnetic-domain structure. The head comprises at least one read head part comprising a plurality of read head elements aligned in the track width direction, wherein each of the plurality of read head elements comprises a lower shield layer and an upper shield layer, and the at least one read head part comprises: a lower shield part comprising a plurality of the lower shield layers aligned in the track width direction; and an upper shield part comprising a plurality of the upper shield layers aligned in the track width direction, and wherein dummy shield layers are provided respectively on both sides of at least the lower shield part.

摘要翻译： 提供了具有彼此相邻的多个读取头元件的多通道薄膜磁头，每个读取头元件包括具有期望的稳定磁畴结构的屏蔽层。 头部包括至少一个读取头部分，其包括在轨道宽度方向上对齐的多个读取头元件，其中多个读取头元件中的每一个包括下部屏蔽层和上部屏蔽层，以及至少一个读取头 部分包括：下屏蔽部分，包括沿轨道宽度方向排列的多个下屏蔽层; 以及上部屏蔽部分，其包括沿着所述磁道宽度方向排列的多个所述上部屏蔽层，并且其中虚拟屏蔽层分别设置在至少所述下部屏蔽部分的两侧。

公开(公告)号：US06294911B1

公开(公告)日：2001-09-25

申请号：US09263778

申请日：1999-03-05

申请人： Koji Shimazawa ,  Nozomu Hachisuka ,  Manabu Ohta ,  Tetsuro Sasaki ,  Satoru Araki

发明人： Koji Shimazawa ,  Nozomu Hachisuka ,  Manabu Ohta ,  Tetsuro Sasaki ,  Satoru Araki

IPC分类号： G01R3309

CPC分类号： B82Y25/00 ,  G01R33/093 ,  G11B5/455 ,  G11B2005/0016

摘要： A method of measuring magnetization direction of a MR device, includes a first step of obtaining both maximum electrical resistance values under positive and negative applied measurement magnetic fields onto the MR device biased by anti-ferromagnetic material, a second step of relatively rotating a basic axis of the MR device against a direction of the applied measurement magnetic field until both the maximum resistance values become comparatively the same, and a third step of obtaining a relative rotation angle between the basic axis of the MR device and the direction of the applied measurement magnetic field.

摘要翻译： 一种测量MR器件的磁化方向的方法包括：在由反铁磁材料偏置的MR器件上的正和负施加的测量磁场下获得最大电阻值的第一步骤，相对旋转基本轴线的第二步骤 的MR装置相对于所施加的测量磁场的方向，直到最大电阻值变得相对相同，并且获得MR装置的基本轴线与施加的测量磁体的方向之间的相对旋转角度的第三步骤 领域。

公开(公告)号：US08154826B2

公开(公告)日：2012-04-10

申请号：US12139809

申请日：2008-06-16

申请人： Nozomu Hachisuka

发明人： Nozomu Hachisuka

IPC分类号： G11B15/64

CPC分类号： G11B5/314 ,  G11B5/6064

摘要： Provided is a thin-film magnetic head in which the magnetic spacing can be appropriately controlled by dynamically and accordingly, by adjusting the pressure working between the thin-film magnetic head and the magnetic recording medium according to the change of conditions such as the change over time. The thin-film magnetic head comprises at least one cavity for adjusting a pressure working between the thin-film magnetic head and the magnetic recording medium, provided in a surface of the head opposed to the magnetic recording medium, and a volume of the at least one cavity being variable. When the magnetic recording medium passes through near the cavity, the cavity generates a (negative) pressure that attracts the head and the medium toward each other. The amount of the negative pressure depends on the volume of the cavity; thus, a magnetic spacing dMS can be controlled dynamically and accordingly by adjusting the volume.

摘要翻译： 提供了一种薄膜磁头，其中可以通过动态地适当地控制磁间隔，并且因此通过根据诸如变化的条件的变化调节薄膜磁头和磁记录介质之间的压力 时间。 薄膜磁头包括至少一个空腔，用于调节薄膜磁头和磁记录介质之间的压力，设置在与磁记录介质相对的磁头的表面中，至少一个体积 一个空腔是可变的。 当磁记录介质通过空腔附近时，空腔产生吸引头和介质朝向彼此的（负）压力。 负压的量取决于空腔的体积; 因此，可以通过调节体积来动态地控制磁间隔dMS。

公开(公告)号：US08130473B2

公开(公告)日：2012-03-06

申请号：US12261563

申请日：2008-10-30

申请人： Nozomu Hachisuka

发明人： Nozomu Hachisuka

IPC分类号： G11B5/39 ,  G11B5/29 ,  G11B5/40

CPC分类号： G11B5/115 ,  G11B5/29 ,  G11B5/3912 ,  G11B5/3967 ,  G11B5/40 ,  G11B5/584

摘要： A multi-channel thin-film magnetic head includes a substrate, a plurality of MR read head elements, a plurality of first resistive elements, and a second resistive element. Each MR read head element includes a lower magnetic shield layer, an upper magnetic shield layer, and an MR layer arranged between the lower magnetic shield layer and the upper magnetic shield layer. Each first resistive element has a first resistance value. One ends of the first resistive elements are connected to the lower magnetic shield layers or the upper magnetic shield layers of the MR read head elements, respectively. The second resistive element has a second resistance value that is higher than the first resistance value. One end of the second resistive element is commonly connected to the other ends of the plurality of first resistive elements. The other end of the second resistive element is grounded.

摘要翻译： 多通道薄膜磁头包括基板，多个MR读头元件，多个第一电阻元件和第二电阻元件。 每个MR读头元件包括下磁屏蔽层，上磁屏蔽层和布置在下磁屏蔽层和上磁屏蔽层之间的MR层。 每个第一电阻元件具有第一电阻值。 第一电阻元件的一端分别连接到MR读头元件的下磁屏蔽层或上磁屏蔽层。 第二电阻元件具有高于第一电阻值的第二电阻值。 第二电阻元件的一端通常连接到多个第一电阻元件的另一端。 第二电阻元件的另一端接地。

公开(公告)号：US08081398B2

公开(公告)日：2011-12-20

申请号：US12100149

申请日：2008-04-09

申请人： Nozomu Hachisuka

发明人： Nozomu Hachisuka

IPC分类号： G11B5/23 ,  G11B5/40 ,  G11B5/58

CPC分类号： G11B5/314 ,  G11B5/00813 ,  G11B5/6064 ,  G11B15/62

摘要： Provided is a thin-film magnetic head, in which the magnetic spacing can be controlled appropriately, regardless of the presence of the variation in height of the medium-opposed surface of the closure. The thin-film magnetic head includes: at least one head element formed on or above an element-formation surface of a substrate, for reading data from a magnetic recording medium and/or writing data to a magnetic recording medium; an overcoat layer formed on the element-formation surface so as to cover the at least one head element; and at least one closure adhered to at least a portion of an upper surface of the overcoat layer. Here, at least one of the at least one closure includes at least one element for adjusting the height of a medium-opposed surface of the closure. The element is preferably a heating element provided within the closure.

摘要翻译： 提供了一种薄膜磁头，其中可以适当地控制磁间隔，而不管闭合件的介质相对表面的高度变化如何。 薄膜磁头包括：形成在基板的元件形成表面上或上方的至少一个头元件，用于从磁记录介质读取数据和/或将数据写入磁记录介质; 形成在所述元件形成表面上以覆盖所述至少一个头元件的外涂层; 并且至少一个封闭件粘附到外涂层的上表面的至少一部分上。 这里，至少一个封闭件中的至少一个包括用于调节封闭件的介质相对表面的高度的至少一个元件。 元件优选地是设置在封闭件内的加热元件。

公开(公告)号：US08009386B2

公开(公告)日：2011-08-30

申请号：US11984969

申请日：2007-11-26

申请人： Nozomu Hachisuka

发明人： Nozomu Hachisuka

IPC分类号： G11B5/187

CPC分类号： G11B5/3106 ,  G11B5/00813 ,  G11B5/1871

摘要： A magnetic tape head has a base substrate, a magnetic head layer formed on the base substrate, and a closure piece formed on the magnetic head layer. The distance from a first plane comprising a point on the tape bearing surface of the base substrate to a third plane comprising a point on the tape bearing surface of the closure piece is equal to or greater than the distance from the first plane to a second plane comprising a point on the tape bearing surface of the magnetic head layer.

摘要翻译： 磁带头具有基底基板，形成在基底基板上的磁头层，以及形成在磁头层上的闭合件。 从包括基础基板的带承载表面上的点的第一平面到包括封闭件的带承载表面上的点的第三平面的距离等于或大于从第一平面到第二平面的距离 包括在磁头层的带承载表面上的点。