-
公开(公告)号：US07206166B2
公开(公告)日：2007-04-17
申请号：US10638366
申请日：2003-08-12
申请人： Yasuyuki Notsuke , Akihiro Oda , Tetsuya Roppongi
发明人： Yasuyuki Notsuke , Akihiro Oda , Tetsuya Roppongi
IPC分类号： G11B5/187
CPC分类号： G11B5/1871 , G11B5/012 , G11B5/1278 , G11B5/3116 , G11B5/313 , G11B2005/0029
摘要： Provided is a thin film magnetic head which enables both ensuring overwrite characteristics and preventing an adverse effect resulting from side erase, such as degradation in an output signal. An exposed surface of a magnetic pole portion layer is configured to have the shape of an asymmetric inverted trapezoid corresponding to a remaining region which remains after removing a width increasing region in the shape of a right triangle from a rectangular region on the side of a side edge. The side edge of the exposed surface is caused to correspond to the side on which a magnetic flux emitted from the magnetic pole portion layer onto a target track of a hard disk causes information to unintentionally overwrite existing information recorded on an adjacent track. This configuration allows preventing the exposed surface from extending to the adjacent track, thus preventing the adverse effect resulting from side erase.
摘要翻译： 提供一种薄膜磁头，其能够确保重写特性并且防止由于诸如输出信号的劣化的侧面擦除引起的不利影响。 磁极部分层的暴露表面被配置为具有对应于从侧面侧面的矩形区域去除直角三角形形状的宽度增加区域后剩余的剩余区域的不对称倒梯形的形状 边缘。 导致暴露表面的侧边缘对应于从磁极部分层发射到硬盘的目标轨道上的磁通使信息无意地覆盖记录在相邻轨道上的现有信息的一侧。 这种构造允许防止暴露的表面延伸到相邻的轨道，从而防止由侧面擦除引起的不利影响。
-
2.发明申请公开(公告)号：US20050229387A1
公开(公告)日：2005-10-20
申请号：US11041266
申请日：2005-01-25
申请人： Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke , Tetsuya Roppongi
发明人： Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke , Tetsuya Roppongi
CPC分类号： G11B5/147 , G11B5/1278 , G11B5/3116 , G11B5/3123 , G11B5/3163 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49048 , Y10T29/4906
摘要： A main pole layer of a magnetic head includes a first portion disposed at a distance from a medium facing surface, and a second portion that is smaller in thickness than the first portion and disposed between the first portion and the medium facing surface. The step of forming the main pole layer includes the steps of forming a plating layer such that one of ends of the plating layer closer to the medium facing surface is located at a position that coincides with the position of one of ends of the first portion closer to the medium facing surface; forming a first nonmagnetic layer to cover the plating layer; polishing the first nonmagnetic layer and the plating layer; forming a space by removing the plating layer; forming a magnetic layer, which will be the main pole layer, in the space and on the top surface of the first nonmagnetic layer; forming a second nonmagnetic layer to cover the magnetic layer; and polishing the second nonmagnetic layer and the magnetic layer.
摘要翻译： 磁头的主极层包括设置在与介质相对表面一定距离处的第一部分，以及第二部分，该第二部分的厚度小于第一部分，并且设置在第一部分和介质面向表面之间。 形成主极层的步骤包括以下步骤：形成电镀层，使得电镀层的靠近介质相对表面的端部之一位于与第一部分的端部中的一个端部的位置相近的位置处 到面向中间的表面; 形成覆盖所述镀层的第一非磁性层; 抛光第一非磁性层和镀层; 通过去除镀层形成空间; 在第一非磁性层的空间和顶表面上形成作为主极层的磁性层; 形成第二非磁性层以覆盖所述磁性层; 并研磨第二非磁性层和磁性层。
-
3.发明授权公开(公告)号：US07219414B2
公开(公告)日：2007-05-22
申请号：US11041266
申请日：2005-01-25
申请人： Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke , Tetsuya Roppongi
发明人： Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke , Tetsuya Roppongi
CPC分类号： G11B5/147 , G11B5/1278 , G11B5/3116 , G11B5/3123 , G11B5/3163 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49048 , Y10T29/4906
摘要： A main pole layer of a magnetic head includes a first portion disposed at a distance from a medium facing surface, and a second portion that is smaller in thickness than the first portion and disposed between the first portion and the medium facing surface. The step of forming the main pole layer includes the steps of forming a plating layer such that one of ends of the plating layer closer to the medium facing surface is located at a position that coincides with the position of one of ends of the first portion closer to the medium facing surface; forming a first nonmagnetic layer to cover the plating layer; polishing the first nonmagnetic layer and the plating layer; forming a space by removing the plating layer; forming a magnetic layer, which will be the main pole layer, in the space and on the top surface of the first nonmagnetic layer; forming a second nonmagnetic layer to cover the magnetic layer; and polishing the second nonmagnetic layer and the magnetic layer.
摘要翻译： 磁头的主极层包括设置在与介质相对表面一定距离处的第一部分，以及第二部分，该第二部分的厚度小于第一部分，并且设置在第一部分和介质面向表面之间。 形成主极层的步骤包括以下步骤：形成电镀层，使得电镀层的靠近介质相对表面的端部之一位于与第一部分的端部中的一个端部的位置相近的位置处 到面向中间的表面; 形成覆盖所述镀层的第一非磁性层; 抛光第一非磁性层和镀层; 通过去除镀层形成空间; 在第一非磁性层的空间和顶表面上形成作为主极层的磁性层; 形成第二非磁性层以覆盖所述磁性层; 并研磨第二非磁性层和磁性层。
-
公开(公告)号：US07154707B2
公开(公告)日：2006-12-26
申请号：US10805408
申请日：2004-03-22
申请人： Yuichi Watabe , Norikazu Ota , Yasuyuki Notsuke , Susumu Aoki , Tetsuya Roppongi , Naoto Matono
发明人： Yuichi Watabe , Norikazu Ota , Yasuyuki Notsuke , Susumu Aoki , Tetsuya Roppongi , Naoto Matono
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/313 , G11B5/3967
摘要： Provided is a thin film magnetic head capable of securing recording characteristics even in the case where a return pole layer is disposed on a medium-outgoing side of the pole layer. The return yoke layer is disposed on a trailing side of the pole layer, and a neck height NH is within a range of NH≦W1 (a width of a front end portion in a main pole layer)+0.05 μm, and a height ratio (a ratio of the neck height NH to a throat height TH) NH/TH is within a range of 0.5
摘要翻译： 提供了即使在极性层的介质输出侧设置返回极层的情况下也能够确保记录特性的薄膜磁头。 返回轭层设置在极层的后侧，颈部高度NH在NH <= W 1（主极层的前端部的宽度）+0.05μm的范围内，并且 高度比（颈部高度NH与喉部高度TH的比）NH / TH在0.5
-
5.发明授权Thin-film magnetic head having two magnetic layers, one of which includes a pole portion layer and a yoke portion layer, and method of manufacturing same 有权具有两个磁性层的薄膜磁头及其制造方法，其中一个磁极层包括磁极部分层和磁轭部分层公开(公告)号：US06728064B2
公开(公告)日：2004-04-27
申请号：US10097566
申请日：2002-03-15
IPC分类号： G11B5187
CPC分类号： G11B5/3967 , G11B5/3116 , G11B5/313
摘要： A thin-film magnetic head comprises first and second magnetic layers, a gap layer provided between the first and second magnetic layers, and a thin-film coil at least a part of which is disposed between the first and second magnetic layers. The second magnetic layer has a pole portion layer, a yoke portion layer, and a coupling portion. The yoke portion layer is magnetically connected to the rear end surface of the pole portion layer and both side surfaces of the pole portion layer in the width direction. The rear end surface of the pole portion layer and the side surfaces of the pole portion layer in the width direction are each inclined relative to the direction perpendicular to the surface of the pole portion layer that faces the gap layer.
摘要翻译： 薄膜磁头包括第一和第二磁性层，设置在第一和第二磁性层之间的间隙层，以及薄膜线圈，其至少一部分设置在第一和第二磁性层之间。 第二磁性层具有磁极部分层，磁轭部分层和耦合部分。 磁轭部分层磁极连接到磁极部分层的后端表面和磁极部分层的宽度方向的两个侧表面。 磁极部分层的后端表面和磁极部分层在宽度方向上的侧表面各自相对于垂直于磁极部分层表面的方向倾斜，面向间隙层。
-
6.发明授权Magnetic head for vertical magnetic recording including main pole layer having varying width and thickness, head gimbal assembly, and hard disk drive 有权用于垂直磁记录的磁头，包括具有不同宽度和厚度的主极层，磁头万向架组件和硬盘驱动器公开(公告)号：US07245454B2
公开(公告)日：2007-07-17
申请号：US10832274
申请日：2004-04-27
申请人： Susumu Aoki , Yasuyuki Notsuke , Yuichi Watabe , Norikazu Ota , Tetsuya Roppongi
发明人： Susumu Aoki , Yasuyuki Notsuke , Yuichi Watabe , Norikazu Ota , Tetsuya Roppongi
CPC分类号： G11B5/1278
摘要： A write head of a magnetic head for vertical magnetic recording comprises: a coil; a main pole layer that allows the magnetic flux corresponding to the magnetic field generated by the coil to pass therethrough and generates a write magnetic field; an auxiliary pole layer; a gap layer provided between the main pole layer and the auxiliary pole layer; and a yoke layer for magnetically coupling the main pole layer to the auxiliary pole layer. The main pole layer has a flat top surface. In the main pole layer the position in which the thickness starts to increase is located between the medium facing surface and the position in which the width starts to increase.
摘要翻译： 用于垂直磁记录的磁头的写头包括：线圈; 主极层，其允许对应于由线圈产生的磁场的磁通量通过，并产生写入磁场; 辅助极层; 设置在主极层和辅助极层之间的间隙层; 以及用于将主极层磁耦合到辅助极层的磁轭层。 主极层具有平坦的顶表面。 在主极层中，厚度开始增加的位置位于介质相对表面和宽度开始增加的位置之间。
-
公开(公告)号：US06952325B2
公开(公告)日：2005-10-04
申请号：US10318153
申请日：2002-12-13
CPC分类号： G11B5/313 , G11B5/3116 , G11B5/3163 , G11B5/3967
摘要： Provided is a thin film magnetic head capable of ensuring the strength of a perpendicular magnetic field and improving recording performance. A bottom pole portion layer and a top pole portion layer constituting a part of a main magnetic pole are formed so that a cross sectional area of a complex including front end portions of the bottom pole portion layer and the top pole portion layer is smaller than a cross sectional area of a complex including rear end portions thereof, and a width of a top edge in an exposed surface is larger than a width of a bottom edge, and is equal to or larger than a width of the exposed surface in a middle position between the top edge and the bottom edge. In recording, magnetic fluxes flowing in a main magnetic pole are focused toward an air bearing surface, and are concentrated on the front end portion of the top pole portion layer which is a main emitting portion of the magnetic fluxes, so sufficient magnetic fluxes can be supplied to the air bearing surface.
摘要翻译： 提供一种能够确保垂直磁场的强度并提高记录性能的薄膜磁头。 形成构成主磁极的一部分的底极部分层和顶极部分层，使得包括底极部分层和顶极部分层的前端部分的复合物的截面积小于 包括其后端部分的复合体的横截面积和暴露表面中的顶部边缘的宽度大于底部边缘的宽度，并且等于或大于在中间位置的暴露表面的宽度 在顶边和底边之间。 在记录中，在主磁极中流动的磁通量朝向空气轴承表面聚焦，并且集中在作为磁通量的主要发射部分的顶极部分层的前端部分上，因此足够的磁通量可以 供应到空气轴承表面。
-
8.发明授权公开(公告)号：US07453668B2
公开(公告)日：2008-11-18
申请号：US11252038
申请日：2005-10-18
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49046
摘要： The present invention provides a method of manufacturing a thin film magnetic head capable of assuring recording characteristics by determining throat height with high precision. A TH specifying layer is formed so as to extend to a position P1 while being adjacent to a gap layer, and an auxiliary insulating layer is similarly formed so as to extend from the position P1 while being adjacent to the gap layer and specify throat height on the basis of the position P1. After that, a main insulating layer is formed so as to cover a thin film coil on the auxiliary insulating layer, and a yoke layer is formed so as to extend while being partially on the TH specifying layer. The throat height is determined accurately and stably on the basis of the position P1 by the auxiliary insulating layer.
摘要翻译： 本发明提供一种能够通过高精度地确定喉部高度来确保记录特性的薄膜磁头的制造方法。 TH指定层形成为在与间隙层相邻的同时延伸到位置P1，并且辅助绝缘层类似地形成为从位置P 1延伸而邻近间隙层并指定喉部 基于位置P 1的高度。之后，形成主绝缘层以覆盖辅助绝缘层上的薄膜线圈，并且形成磁轭层，以便部分地延伸到TH指定 层。 基于位置P 1由辅助绝缘层精确稳定地确定喉部高度。
-
公开(公告)号：US07433152B2
公开(公告)日：2008-10-07
申请号：US11393848
申请日：2006-03-31
IPC分类号： G11B5/147
CPC分类号： G11B5/3967 , G11B5/1278 , G11B5/3116 , G11B5/3143
摘要： A perpendicular magnetic recording head capable of minimizing the possibility of erasing recorded information without intention at the time of recording information is provided. A pole layer has a structure in which a main pole layer disposed on a leading side and an auxiliary pole layer disposed on a trailing side are laminated. Even if a part of a magnetic flux contained in the auxiliary pole layer is directly emitted from an air bearing surface to outside not via the main pole layer, as the magnetic flux is contained in the magnetic layer, the magnetic flux is not easily emitted from the air bearing surface to the outside directly. Therefore, an unnecessary perpendicular magnetic field is not easily generated by the magnetic flux. Thereby, a recording medium is not easily magnetized again by the unnecessary magnetic field, so information recorded on the recording medium is not easily erased without intention.
-
10.发明申请公开(公告)号：US20060098338A1
公开(公告)日：2006-05-11
申请号：US11264171
申请日：2005-11-02
IPC分类号： G11B5/147
CPC分类号： G11B5/3967 , G11B5/1278 , G11B5/3116 , G11B5/3143
摘要： A perpendicular magnetic recording head capable of minimizing the possibility of erasing recorded information without intention at the time of recording information is provided. A pole layer has a structure in which a main pole layer disposed on a leading side and an auxiliary pole layer disposed on a trailing side are laminated. Even if a part of a magnetic flux contained in the auxiliary pole layer is directly emitted from an air bearing surface to outside not via the main pole layer, as the magnetic flux is contained in the magnetic layer, the magnetic flux is not easily emitted from the air bearing surface to the outside directly. Therefore, an unnecessary perpendicular magnetic field is not easily generated by the magnetic flux. Thereby, a recording medium is not easily magnetized again by the unnecessary magnetic field, so information recorded on the recording medium is not easily erased without intention.
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.038 秒)
