公开(公告)号：US07170712B2

公开(公告)日：2007-01-30

申请号：US10795786

申请日：2004-03-08

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B5/17 ,  G11B5/23

CPC分类号： G11B5/3163 ,  G11B5/313

摘要： A recording thin-film magnetic head includes a gap-depth defining layer, lower magnetic pole layers and gap layers on the front and rear sides of the gap-depth defining layer, and an upper magnetic pole layer. The entire top surface of the gap-depth defining layer is covered with a first seed layer. The rear end surfaces of the lower magnetic pole layer and the gap layer on the front side are in contact with the front end surface of the gap-depth defining layer. The upper magnetic pole layer is formed on the gap layers by plating.

摘要翻译： 记录薄膜磁头包括间隙深度限定层，间隙深度限定层的前侧和后侧上的下磁极层和间隙层以及上磁极层。 间隙深度限定层的整个顶表面被第一种子层覆盖。 下磁极层的后端表面和前侧的间隙层与间隙深度限定层的前端表面接触。 上磁极层通过电镀形成在间隙层上。

公开(公告)号：US07143505B2

公开(公告)日：2006-12-05

申请号：US10630398

申请日：2003-07-30

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3163 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3967 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/4906

摘要： A thin film magnetic head is capable of reducing inductance by shortening a magnetic path, and also preventing a cavity from being formed in a coil insulating layer. The coil insulating layer is deposited on a lower core layer and at the rear of a recording portion, and a coil forming groove is formed in the coil insulating layer. Then, a coil layer is embedded in the coil forming groove. With this arrangement, bulges of the layers from an upper surface of the recording portion can be decreased so as to shorten a magnetic path.

摘要翻译： 薄膜磁头能够通过缩短磁路来减小电感，并且还防止在线圈绝缘层中形成空腔。 线圈绝缘层沉积在下芯层和记录部分的后部，线圈形成槽形成在线圈绝缘层中。 然后，线圈层嵌入线圈形成槽。 利用这种布置，可以减小来自记录部分的上表面的层的凸起，从而缩短磁路。

公开(公告)号：US06987644B2

公开(公告)日：2006-01-17

申请号：US10716830

申请日：2003-11-17

申请人： Kiyoshi Sato ,  Sumihito Morita

发明人： Kiyoshi Sato ,  Sumihito Morita

IPC分类号： G11B5/147 ,  G11B5/17

CPC分类号： G11B5/3967 ,  G11B5/1276

摘要： A thin film magnetic head and a method for manufacturing the same is provided, wherein first coil pieces and second coil pieces provided one above the other with a magnetic pole layer therebetween are electrically connected to each other with reliability and with ease, and the above-described magnetic pole layer can be provided on a flattened surface. A laminate provided on a coil insulation layer can be formed on a flattened surface and, therefore, the above-described magnetic pole layer can be formed into a predetermined shape. As a result, the track width can have a predetermined dimension, and the second coil pieces provided on the above-described laminate can be reliably, easily connected to the top surfaces of connection layers exposed at the top surface of the coil insulating layer.

摘要翻译： 提供一种薄膜磁头及其制造方法，其中在它们之间具有磁极层的第一线圈片和第二线圈片之间的可靠性和电容性彼此电连接， 可以在平坦表面上设置上述磁极层。 设置在线圈绝缘层上的层叠体可以形成在平坦表面上，因此可以将上述磁极层形成为预定的形状。 结果，轨道宽度可以具有预定尺寸，并且设置在上述层压体上的第二线圈片可以可靠地容易地连接到暴露在线圈绝缘层的顶表面的连接层的顶表面。

公开(公告)号：US20050257365A1

公开(公告)日：2005-11-24

申请号：US11127725

申请日：2005-05-12

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/147 ,  G11B5/187

CPC分类号： G11B5/187 ,  G11B5/127 ,  Y10T29/49021 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49052

摘要： A non-magnetic material layer which is formed with a taper region of which the film thickness is gradually reduced over the top surface and the side of an upper core layer and the side of the gap layer is formed by cutting the gap layer and the upper core layer on a lower core layer with a track width and the lower periphery of the taper region is contacted with the top surface of the lower core layer. On the top surface of the lower core layer extending from the lower periphery of the taper region to the both sides, the slopes inclined in the direction apart from the upper core layer are formed and a protrusion having a track width is formed on the lower core layer. The material layer having the same material as the lower core layer adhered to the outside of the non-magnetic material layer is removed.

摘要翻译： 形成有锥形区域的非磁性材料层，其中通过切割间隙层和上层形成膜厚度在顶部表面和上部芯层的侧面以及间隙层的侧面上逐渐减小的锥形区域 具有轨道宽度的下芯层上的芯层和锥形区域的下周边与下芯层的顶表面接触。 在下部芯层的从锥形区域的下边缘延伸到两侧的顶表面上，形成了沿着与上芯层分离的方向倾斜的斜面，并且在下芯部上形成具有轨道宽度的突起 层。 除去粘附到非磁性材料层外侧的与下芯层相同材料的材料层。

公开(公告)号：US20050115058A1

公开(公告)日：2005-06-02

申请号：US10988456

申请日：2004-11-12

申请人： Kiyoshi Sato ,  Kiyoshi Kobayashi

发明人： Kiyoshi Sato ,  Kiyoshi Kobayashi

IPC分类号： G11B5/147 ,  G11B5/31

CPC分类号： G11B5/3163 ,  G11B5/3103 ,  Y10T29/49039 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/4906 ,  Y10T29/49062

摘要： A first insulating layer is formed on a main magnetic pole used as a magnetic pole layer to have a protruding portion and a flat portion formed around the protruding portion. A second insulating layer is formed on the flat portion, and then the protruding portion of the first insulating layer is cut to expose the upper surface of the main magnetic pole and to form the same planarized surface including the upper surfaces of the main magnetic pole and the second insulating layer. Polishing is stopped using the second insulating layer as a marker, thereby permitting precise control of the amount of polishing.

摘要翻译： 第一绝缘层形成在用作磁极层的主磁极上，具有突出部分和形成在突出部分周围的平坦部分。 在平坦部分上形成第二绝缘层，然后切割第一绝缘层的突出部分以暴露主磁极的上表面并形成包括主磁极的上表面的相同的平坦化表面，以及 第二绝缘层。 使用第二绝缘层作为标记停止抛光，从而可以精确地控制抛光量。

公开(公告)号：US20050105212A1

公开(公告)日：2005-05-19

申请号：US10984650

申请日：2004-11-09

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B5/31 ,  G11B5/147 ,  G11B5/265

CPC分类号： G11B5/2657

摘要： A magnetic head includes a plurality of coil elements disposed in a space defined by a lower core layer, a pole layer, and a back gap layer. A coil insulator fills the space so as to cover the coil elements. The top face of the pole layer, the top face of the coil insulator, the top faces of the coil elements, and the top face of the back gap layer form a planarized plane. The coil elements are disposed on a recess formed on the lower core layer. The bottom faces of the coil elements are disposed at substantially the same height as the top face of the lower core layer. The top faces of the coil elements lie in the planarized plane.

摘要翻译： 磁头包括设置在由下芯层，极层和后间隙层限定的空间中的多个线圈元件。 线圈绝缘体填充空间以覆盖线圈元件。 极层的顶面，线圈绝缘子的顶面，线圈元件的顶面和后间隙层的顶面形成平面化平面。 线圈元件设置在形成在下芯层上的凹部上。 线圈元件的底面设置在与下芯层的顶面基本相同的高度。 线圈元件的顶面位于平面平面内。

公开(公告)号：US06683750B2

公开(公告)日：2004-01-27

申请号：US09761350

申请日：2001-01-16

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B5147

CPC分类号： G11B5/313 ,  G11B5/312 ,  G11B5/3133 ,  Y10T29/49032 ,  Y10T29/4906 ,  Y10T29/49062 ,  Y10T29/49064 ,  Y10T29/49073

摘要： An inorganic insulation underlying layer and an organic insulation underlying layer are formed on a lower core layer behind a recording region. Also, a coil layer is formed on the organic insulation underlying layer. Therefore, thewithstand voltage between the lower core layer and the coil layer can be improved.

摘要翻译： 在记录区域后面的下芯层上形成无机绝缘层和有机绝缘层。 而且，在有机绝缘层上形成线圈层。 因此，可以提高下芯层与线圈层之间的电压。

公开(公告)号：US06662433B1

公开(公告)日：2003-12-16

申请号：US09709767

申请日：2000-11-10

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B5127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/313 ,  G11B5/3967 ,  G11B2005/3996 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/4905 ,  Y10T29/49071

摘要： A thin film magnetic head includes a lower shielding layer composed of a magnetic material; a nonmagnetic MR gap layer on the lower shielding layer; a magnetoresistive element layer in the MR gap layer facing a recording medium; a lower core layer composed of a magnetic material on the MR gap layer; an upper core layer composed of a magnetic material being opposed to the lower core layer with a nonmagnetic gap layer therebetween at the surface facing the recording medium; and a coil layer for inducing a recording magnetic field in the lower core layer and the upper core layer. Alternatively, a thin film magnetic head further includes a first magnetic material layer in the rear of the lower shielding layer, magnetically separated from the lower shielding layer. A method of fabricating the same is also disclosed.

摘要翻译： 薄膜磁头包括由磁性材料构成的下屏蔽层; 在下屏蔽层上的非磁性MR间隙层; 面向记录介质的MR间隙层中的磁阻元件层; 在MR间隙层上由磁性材料构成的下芯层; 在与记录介质相对的表面上具有与所述下芯层相对的磁性材料构成的上芯层，其间具有非磁性间隙层; 以及用于在下芯层和上芯层中诱导记录磁场的线圈层。 或者，薄膜磁头还包括在下屏蔽层的后部的与下屏蔽层磁分离的第一磁性材料层。 还公开了一种制造该方法的方法。

公开(公告)号：US06604274B1

公开(公告)日：2003-08-12

申请号：US09593678

申请日：2000-06-14

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B5127

CPC分类号： G11B5/313 ,  G11B5/3143 ,  Y10T29/49043 ,  Y10T29/49044

摘要： A method for fabricating a thin film magnetic head is disclosed. A nonmagnetic gap layer is formed on a lower gap layer. A first insulating layer is formed on a first part of the nonmagnetic gap layer. A second part of the nonmagnetic gap layer not covered with the first insulating layer is a magnetic gap formation section, which is part of a tip region. A coil layer and a second insulating layer are formed on the first insulating layer. A first underlying layer composed of a magnetic material extending from the nonmagnetic gap layer inside the tip region is formed over the second insulating layer. A first magnetic material layer is formed on the first underlying layer outside the tip region. The first underlying layer is removed from inside the tip region. A nonmagnetic material layer extending from the nonmagnetic gap layer is formed over the first magnetic layer.

摘要翻译： 公开了一种用于制造薄膜磁头的方法。 在下间隙层上形成非磁性间隙层。 第一绝缘层形成在非磁性间隙层的第一部分上。 未被第一绝缘层覆盖的非磁性间隙层的第二部分是作为尖端区域的一部分的磁隙形成部。 在第一绝缘层上形成线圈层和第二绝缘层。 在第二绝缘层上形成由从末端区域内的非磁性间隙层延伸的磁性材料构成的第一下层。 第一磁性材料层形成在尖端区域外侧的第一底层上。 第一个底层从尖端区域内部移除。 在第一磁性层上形成从非磁性间隙层延伸的非磁性材料层。

公开(公告)号：US06476485B1

公开(公告)日：2002-11-05

申请号：US09569155

申请日：2000-05-11

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： H01L2982

CPC分类号： G11B5/3103 ,  G11B5/3106 ,  G11B5/3163 ,  G11B5/3967 ,  H01L23/49816 ,  H01L2924/0002 ,  H05K3/244 ,  H05K3/4007 ,  H05K3/4038 ,  Y10T29/49128 ,  Y10T29/49149 ,  Y10T29/49155 ,  Y10T29/49156 ,  Y10T29/49169 ,  H01L2924/00

摘要： In a thin-film structure, since a flat face of a bump, which is exposed at the surface of an insulating layer and is to be in contact with an electrode layer, is an exposed surface of a nickel layer, an oxide layer on the flat face can be reliably removed by using ion-milling or sputter etching.

摘要翻译： 在薄膜结构中，由于在绝缘层的表面露出并与电极层接触的突起的平坦面是镍层的露出面，所以在 可以通过使用离子铣削或溅射蚀刻可靠地去除平坦的表面。