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81. 发明授权

US07061716B2 Thin-film magnetic head and method of manufacturing same 有权
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US07061716B2
公开(公告)日：2006-06-13
申请号：US10353927
申请日：2003-01-30
申请人： Yoshitaka Sasaki , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Takehiro Kamigama
IPC分类号： G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/17 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： A thin-film magnetic head includes a bottom pole layer, a top pole layer, a recording gap layer, and a thin-film coil. The bottom pole layer has first to fifth layers. The third layer and the fifth layer constitute a coupling portion for establishing magnetic coupling between the bottom pole layer and the top pole layer. The thin-film coil has first to fifth layer portions each of which is made of a flat conductive layer of a single turn. The first to fifth layer portions are laminated, and connected in series to each other. The coupling portion has an end face facing toward the air bearing surface. The end face includes a curved surface convex toward the medium facing surface.
摘要翻译：薄膜磁头包括底极层，顶极层，记录间隙层和薄膜线圈。底极层具有第一至第五层。第三层和第五层构成用于在底极层和顶极层之间建立磁耦合的耦合部分。薄膜线圈具有第一至第五层部分，每个部分由单圈的平坦导电层制成。第一至第五层部分被层叠并且彼此串联连接。联接部分具有面向空气支承表面的端面。端面包括向面向介质的表面凸出的弯曲表面。

82. 发明申请

US20060012916A1 Wiring pattern and method of manufacturing the same and thin film magnetic head and method of manufacturing the same 有权
公开(公告)号：US20060012916A1
公开(公告)日：2006-01-19
申请号：US11230683
申请日：2005-09-21
申请人： Yoshitaka Sasaki , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Takehiro Kamigama
IPC分类号： G11B5/147
CPC分类号： G11B5/3967 , G11B5/17 , G11B5/3109 , G11B5/313 , G11B5/3136 , G11B5/3163 , H01F17/0013 , H01F41/042 , Y10T29/49034 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49062 , Y10T29/49064
摘要： A bottom track pole is formed on a surface of a bottom pole, a thin film coil is formed on the bottom pole to form a flat coplanar surface with the bottom track pole, a write gap film is formed on the flat coplanar surface, first and second magnetic material films constituting a top pole are formed on a flat surface of the thin film coil, and the second magnetic material film, first magnetic material film, write gap film and bottom track pole are partially removed by RIE to form a top track pole and trim structure in a self-aligned manner. The thin film coil is formed by a first thin film coil half and a second thin film coil half having coil windings which are formed in a self-aligned manner between successive coil windings of the first thin film coil half and have a two-layer structure of a first conductive film at least a part of which is formed by CVD and a second conductive film formed by electrolytic plating. A thin insulating film is interposed between successive coil windings of the first and second thin film coil halves. Jumper wirings for connecting an innermost coil winding of the first thin film coil half to an outermost coil winding of the second thin film coil half are formed together with the top pole.

83. 发明授权

US06987645B2 Thin-film magnetic head and method of manufacturing same, and thin-film magnetic head substructure 有权
标题翻译：薄膜磁头及其制造方法，以及薄膜磁头子结构
公开(公告)号：US06987645B2
公开(公告)日：2006-01-17
申请号：US10403033
申请日：2003-04-01
申请人： Yoshitaka Sasaki , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Takehiro Kamigama
IPC分类号： G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/17 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3909 , G11B5/3967
摘要： A thin-film magnetic head comprises a bottom pole layer, a top pole layer, a recording gap layer, and a thin-film coil. The thin-film coil is wound in a helical manner around the top pole layer while the coil is insulated from the bottom pole layer and the top pole layer. The thin-film coil includes a plurality of inner conductor portions, a plurality of outer conductor portions, and a plurality of connecting portions that connect the inner conductor portions to the outer conductor portions. The inner conductor portions are disposed between the bottom pole layer and the top pole layer. The outer conductor portions are disposed on a side opposite to the inner conductor portions, the top pole layer being disposed in between. A thin insulating film is only provided between adjacent ones of the inner conductor portions.
摘要翻译：薄膜磁头包括底极层，顶极层，记录间隙层和薄膜线圈。薄膜线圈围绕顶极层以螺旋方式卷绕，同时线圈与底极层和顶极层绝缘。薄膜线圈包括多个内部导体部分，多个外部导体部分和将内部导体部分连接到外部导体部分的多个连接部分。内导体部分设置在底极层和顶极层之间。外导体部分设置在与内导体部分相对的一侧，顶极层设置在其间。仅在相邻的内部导体部分之间设置薄的绝缘膜。

84. 发明申请

US20050241141A1 Method of manufacturing thin-film magnetic head 有权
标题翻译：制造薄膜磁头的方法
公开(公告)号：US20050241141A1
公开(公告)日：2005-11-03
申请号：US11174666
申请日：2005-07-06
申请人： Yoshitaka Sasaki , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Takehiro Kamigama
IPC分类号： G11B5/17 , G11B5/31 , G11B5/39 , G11B5/187
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/17 , G11B5/3116 , G11B5/313 , G11B5/3136 , G11B5/3163 , G11B5/3967 , G11B2005/3996 , Y10T29/49021 , Y10T29/49039 , Y10T29/49043 , Y10T29/4906 , Y10T29/49062 , Y10T29/49073
摘要： A thin-film magnetic head comprises a medium facing surface, a bottom pole layer, a top pole layer, a recording gap layer, and a thin-film coil. The bottom pole layer and the top pole layer are coupled to each other via a coupling portion located away from the medium facing surface. The coupling portion has an end face facing toward the medium facing surface. The end face includes a curved surface convex toward the medium facing surface. The thin-film coil has a conductive layer of three turns disposed around the coupling portion. The first turn of the conductive layer from an inner side thereof includes a portion disposed between the end face of the coupling portion and the medium facing surface. This portion has a minimum width of the conductive layer at a position on a virtual line connecting the end face of the coupling portion and the medium facing surface in the shortest distance, and increases in width with distance from the virtual line.
摘要翻译：薄膜磁头包括介质相对表面，底极层，顶极层，记录间隙层和薄膜线圈。底极层和顶极层通过位于远离介质相对表面的耦合部分彼此耦合。联接部分具有面向介质面向表面的端面。端面包括向面向介质的表面凸出的弯曲表面。薄膜线圈具有围绕耦合部分设置的三匝导电层。导电层从其内侧的第一匝包括设置在联接部分的端面和介质相对表面之间的部分。该部分在连接部分的端面和面向介质的表面之间的虚拟线上位于最短距离处的位置具有最小的导电层的宽度，并且随虚拟线的距离而增加。

85. 发明申请

US20050188530A1 Method of manufacturing thin-film magnetic head 有权
标题翻译：制造薄膜磁头的方法
公开(公告)号：US20050188530A1
公开(公告)日：2005-09-01
申请号：US10786048
申请日：2004-02-26
申请人： Yoshitaka Sasaki , Kazuo Ishizaki , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Kazuo Ishizaki , Takehiro Kamigama
IPC分类号： G11B5/17 , G11B5/31
CPC分类号： G11B5/3163 , G11B5/3116 , Y10T29/49032
摘要： A track width defining layer includes: a track width defining portion having an end located in the air bearing surface and the other end located opposite to the air bearing surface; and a wide portion coupled to the other end of the track width defining portion. The track width defining layer is formed by frame plating. A frame is formed by exposing and developing a resist layer. The step of exposing the resist layer includes: a first exposure step for forming a first latent image in the resist layer; and a second exposure step for forming a second latent image in the resist layer. The first latent image is made up of a first portion corresponding to the track width defining portion and a second portion adjoining the first portion and extending along the contour of the wide portion. The second latent image is intended for use in combination with the first latent image so as to form a latent image corresponding to the track width defining layer, and does not include a portion corresponding to the track width defining portion.
摘要翻译：轨道宽度限定层包括：轨道宽度限定部分，其具有位于空气轴承表面中的端部，而另一端位于与空气支承表面相对的位置; 并且宽部分联接到轨道宽度限定部分的另一端。轨道宽度限定层通过框架电镀形成。通过曝光和显影抗蚀剂层形成框架。曝光抗蚀剂层的步骤包括：用于在抗蚀剂层中形成第一潜像的第一曝光步骤; 以及在抗蚀剂层中形成第二潜像的第二曝光步骤。第一潜像由对应于轨道宽度限定部分的第一部分和与第一部分邻接并沿着宽部分的轮廓延伸的第二部分组成。第二潜像旨在与第一潜像组合使用以形成对应于轨道宽度限定层的潜像，并且不包括对应于轨道宽度限定部分的部分。

86. 发明申请

US20050099726A1 Thin-film magnetic head and method of manufacturing same 有权
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US20050099726A1
公开(公告)日：2005-05-12
申请号：US10702590
申请日：2003-11-07
申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Hiroyuki Itoh , Takehiro Kamigama
IPC分类号： G11B5/31 , G11B5/147
CPC分类号： G11B5/1475 , Y10T29/49044
摘要： A thin-film magnetic head comprises a top pole layer incorporating a throat height defining layer, an intermediate layer, and a yoke portion layer. The yoke portion layer includes a track width defining portion for defining the track width. Each of the throat height defining layer, the intermediate layer, and the track width defining portion has a width equal to the track width. The length of the intermediate layer is greater than the length of the throat height defining layer, and the length of the yoke portion layer is greater than the length of the intermediate layer, each of the lengths being taken in the direction orthogonal to the air bearing surface.
摘要翻译：薄膜磁头包括结合有喉部高度限定层的顶极层，中间层和磁轭部分层。轭部分层包括用于限定轨道宽度的轨道宽度限定部分。喉部高度限定层，中间层和轨道宽度限定部分中的每一个具有等于轨道宽度的宽度。中间层的长度大于喉部高度限定层的长度，并且轭部分层的长度大于中间层的长度，每个长度沿与空气轴承正交的方向表面。

87. 发明申请

US20050099725A1 Thin-film magnetic head and method of manufacturing same 有权
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US20050099725A1
公开(公告)日：2005-05-12
申请号：US10702512
申请日：2003-11-07
申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Hiroyuki Itoh , Takehiro Kamigama
IPC分类号： G11B5/31 , G11B5/147 , G11B5/187
CPC分类号： G11B5/1878 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49052 , Y10T29/4906
摘要： A thin-film magnetic head comprises a bottom pole layer having a surface that faces toward a write gap layer. This surface incorporates a first surface including an end portion located in the air bearing surface, and a second surface located away from the air bearing surface. There is a difference in level between the first surface and the second surface, so that the second surface is located farther from the top pole layer than the first surface. A top pole layer incorporates a throat height defining layer, an intermediate layer, and a yoke portion layer. The yoke portion layer includes a track width defining portion for defining the track width. Each of the throat height defining layer, the intermediate layer, and the track width defining portion has a width equal to the track width.
摘要翻译：薄膜磁头包括具有朝向写间隙层的表面的底极层。该表面包括包括位于空气支承表面中的端部的第一表面和远离空气支承表面的第二表面。在第一表面和第二表面之间存在水平差异，使得第二表面位于比第一表面更远离顶极层的位置。顶极层包括喉部高度限定层，中间层和轭部分层。轭部分层包括用于限定轨道宽度的轨道宽度限定部分。喉部高度限定层，中间层和轨道宽度限定部分中的每一个具有等于轨道宽度的宽度。

88. 发明申请

US20050050715A1 Method of manufacturing thin-film magnetic head 有权
标题翻译：制造薄膜磁头的方法
公开(公告)号：US20050050715A1
公开(公告)日：2005-03-10
申请号：US10654421
申请日：2003-09-04
申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Shigeki Tanemura , Kazuo Ishizaki , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Hiroyuki Itoh , Shigeki Tanemura , Kazuo Ishizaki , Takehiro Kamigama
IPC分类号： G11B5/127 , G11B5/31 , H04R31/00
CPC分类号： G11B5/3116 , G11B5/3163 , Y10T29/49032 , Y10T29/49041 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49073
摘要： A thin-film magnetic head comprises a top pole layer incorporating a throat height defining layer and a yoke portion layer. The throat height defining layer is formed as follows. A magnetic layer to be a track width defining portion is formed on a recording gap layer. Next, the magnetic layer is selectively etched through the use of a mask so as to form an end portion of the magnetic layer for defining the throat height. Next, a nonmagnetic layer is formed to fill the etched portion of the magnetic layer while the mask is left unremoved. Next, the yoke portion layer is formed. Using the track width defining portion as a mask, the magnetic layer, the recording gap layer and a portion of the bottom pole layer are etched.
摘要翻译：薄膜磁头包括结合有喉部高度限定层和磁轭部分层的顶极层。喉部高度限定层形成如下。作为轨道宽度限定部分的磁性层形成在记录间隙层上。接下来，通过使用掩模来选择性地蚀刻磁性层，以形成用于限定喉部高度的磁性层的端部。接下来，形成非磁性层以填充磁性层的蚀刻部分，同时掩模未被除去。接着，形成轭部层。使用轨道宽度限定部分作为掩模，蚀刻磁性层，记录间隙层和底极层的一部分。

89. 发明授权

US06842314B2 Magnetoresistive device and method of manufacturing same, and thin-film magnetic head and method of manufacturing same 有权
标题翻译：磁阻装置及其制造方法，以及薄膜磁头及其制造方法
公开(公告)号：US06842314B2
公开(公告)日：2005-01-11
申请号：US10155973
申请日：2002-05-29
申请人： Yoshitaka Sasaki , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Takehiro Kamigama
IPC分类号： G01R33/09 , G11B5/31 , G11B5/39 , H01L43/08 , H01L43/12 , G11B5/127
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3903 , G11B5/3967 , H01L43/08 , H01L43/12 , Y10T29/49052
摘要： A reproducing head of a thin-film magnetic head incorporates an MR element, a pair of bias field applying layers located to be adjacent to side portions of the MR element, and a pair of electrode layers that are located on the bias field applying layers and overlap the MR element. The electrode layers each have a first layer, a second layer, and a third layer. The first layer is laid over part of the top surface of the MR element via a protection layer, the second layer overlaps the first layer, and the third layer is located on the second layer. The second layer is thinner than the third layer. In the method of manufacturing the reproducing head, after the protection layer is formed on an element-to-be film to make the MR element, a first electrode-to-be film to make the first layers is formed continuously without interposing a step of exposing the protection layer to the air.
摘要翻译：薄膜磁头的再现头包括MR元件，位于与MR元件的侧面部分相邻的一对偏置场施加层和位于偏置场施加层上的一对电极层，以及重叠MR元素。电极层各自具有第一层，第二层和第三层。第一层通过保护层放置在MR元件的上表面的一部分上，第二层与第一层重叠，第三层位于第二层上。第二层比第三层薄。在制造再现头的方法中，在保护层形成在要成膜的元件上以制造MR元件之后，形成第一层的第一电极膜被连续地形成，而不插入将保护层暴露在空气中。

90. 发明授权

US06842307B2 Thin-film magnetic head including thin-film coil and lead layer connected via connecting layer 有权
标题翻译：薄膜磁头包括通过连接层连接的薄膜线圈和引线层
公开(公告)号：US06842307B2
公开(公告)日：2005-01-11
申请号：US10322466
申请日：2002-12-19
申请人： Yoshitaka Sasaki , Takehiro Kamigama
发明人： Yoshitaka Sasaki , Takehiro Kamigama
IPC分类号： G11B5/31 , G11B5/39 , G11B5/17 , G11B5/187
CPC分类号： G11B5/3163 , G11B5/3116 , G11B5/313 , G11B5/3967
摘要： A thin-film magnetic head comprises a bottom pole layer, a top pole layer, a recording gap layer, and first and second thin-film coils. The bottom pole layer includes a first layer disposed to face toward the first and second thin-film coils, and second and third layers disposed closer to an air bearing surface than the first and second thin-film coils are. In a method of manufacturing the thin-film magnetic head, the first thin-film coil and the second layer are formed in this order on a magnetic layer that has a wholly flat top surface and is to be the first layer. Then, the magnetic layer is patterned to complete the first layer.
摘要翻译：薄膜磁头包括底极层，顶极层，记录间隙层以及第一和第二薄膜线圈。底极层包括朝向第一和第二薄膜线圈设置的第一层，以及比第一和第二薄膜线圈更靠近空气轴承表面设置的第二和第三层。在制造薄膜磁头的方法中，第一薄膜线圈和第二层依次形成在具有完全平坦的顶表面并将成为第一层的磁性层上。然后，对磁性层进行图案化以完成第一层。

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