-
1.发明授权Thin film magnetic head having thermal expansion layer for suppressing thermal protrusion 有权具有用于抑制热突起的热膨胀层的薄膜磁头公开(公告)号：US07848056B2
公开(公告)日：2010-12-07
申请号：US11730155
申请日：2007-03-29
IPC分类号： G11B5/127
CPC分类号： G11B5/3133 , G11B5/3136 , G11B5/3909 , G11B2005/3996
摘要： A thin film magnetic head includes a main magnetic pole layer conducting a magnetic flux to the recording medium so that the recording medium an be magnetized in a direction orthogonal to a surface thereof; a return yoke layer disposed on a trailing side of the main magnetic pole layer; an intermediate protective layer partially disposed on a magnetic shield layer; and a thermal expansion suppressing layer having an edge located on the intermediate protective layer and being in contact with the return yoke layer in an area where the intermediate protective layer is not formed. If the thin film magnetic head is affected by ambient temperature environment, the thermal expansion suppressing layer suppresses the shift of the main magnetic pole layer and the return yoke layer toward the air bearing surface. This suppresses thermal protrusion from occurring on the thin film magnetic head due to ambient temperature environment.
摘要翻译： 薄膜磁头包括将磁通量传导到记录介质的主磁极层，使得记录介质在与其表面正交的方向上被磁化; 设置在所述主磁极层的后侧的返回磁轭层; 部分设置在磁屏蔽层上的中间保护层; 以及热膨胀抑制层，其具有位于中间保护层上的边缘，并且在没有形成中间保护层的区域中与返回轭层接触。 如果薄膜磁头受到环境温度环境的影响，则热膨胀抑制层抑制主磁极层和返回磁轭层向空气轴承表面的移动。 这抑制了由于环境温度环境而在薄膜磁头上发生的热突起。
-
2.发明申请Thin film magnetic head, head gimbal assembly, head arm assembly, magnetic disk device and method of forming thin film magnetic head 有权薄膜磁头，头万向架组件，头臂组件，磁盘装置和薄膜磁头形成方法公开(公告)号：US20080239583A1
公开(公告)日：2008-10-02
申请号：US11730155
申请日：2007-03-29
IPC分类号： G11B5/33
CPC分类号： G11B5/3133 , G11B5/3136 , G11B5/3909 , G11B2005/3996
摘要： The thin film magnetic head includes a main magnetic pole layer conducting a magnetic flux to the recording medium so that the recording medium an be magnetized in a direction orthogonal to a surface thereof; a return yoke layer disposed on a trailing side of the main magnetic pole layer; an intermediate protective layer partially disposed on a magnetic shield layer; and a thermal expansion suppressing layer having an edge located on the intermediate protective layer and being in contact with the return yoke layer in an area where the intermediate protective layer is not formed. If the thin film magnetic head is affected by ambient temperature environment, the thermal expansion suppressing layer suppresses the shift of the main magnetic pole layer and the return yoke layer toward the air bearing surface. This suppresses thermal protrusion from occurring on the thin film magnetic head due to ambient temperature environment.
摘要翻译： 薄膜磁头包括将磁通量传导到记录介质的主磁极层，使得记录介质在与其表面正交的方向上被磁化; 设置在所述主磁极层的后侧的返回磁轭层; 部分设置在磁屏蔽层上的中间保护层; 以及热膨胀抑制层，其具有位于中间保护层上的边缘，并且在没有形成中间保护层的区域中与返回轭层接触。 如果薄膜磁头受到环境温度环境的影响，则热膨胀抑制层抑制主磁极层和返回磁轭层向空气轴承表面的移动。 这抑制了由于环境温度环境而在薄膜磁头上发生的热突起。
-
3.发明申请公开(公告)号：US20080253034A1
公开(公告)日：2008-10-16
申请号：US11713740
申请日：2007-03-05
CPC分类号： G11B5/1278 , G11B5/3146 , G11B5/3163
摘要： The present invention is directed to providing a perpendicular magnetic write head which can suppress unintended erasure of information written on a write medium at a non-writing time by optimizing a magnetic domain structure of main component elements that are engaged in writing operation. In the perpendicular magnetic write head, an auxiliary magnetic pole layer is disposed on a trailing or leading side of a main magnetic pole layer, the auxiliary magnetic pole layer being recessed from the main magnetic pole layer. When the main magnetic pole layer has a tensile stress as its internal stress, a nonmagnetic layer disposed in a layer same as the auxiliary magnetic pole layer and in an area in front of the auxiliary magnetic pole layer, also has a tensile stress as its internal stress.
摘要翻译： 本发明旨在提供一种垂直磁性写入头，其可以通过优化从事写入操作的主要组成元件的磁畴结构来抑制在非写入时刻写入写入介质的信息的意外擦除。 在垂直写磁头中，辅助磁极层设置在主磁极层的后侧或前侧，辅助磁极层从主磁极层凹入。 当主磁极层作为其内应力具有拉伸应力时，设置在与辅助磁极层相同的层中的非磁性层和在辅助磁极层前面的区域中也具有作为其内部的拉伸应力 强调。
-
4.发明申请Thin film magnetic head, head gimbal assembly, head arm assembly, magnetic disk device and method of forming thin film magnetic head 有权薄膜磁头，头万向架组件，头臂组件，磁盘装置和薄膜磁头形成方法公开(公告)号：US20080253032A1
公开(公告)日：2008-10-16
申请号：US11730153
申请日：2007-03-29
CPC分类号： G11B5/3133 , G11B5/3163
摘要： A thin film magnetic head is provided, in which thermal protrusion can be suppressed. The thin film magnetic head includes a main magnetic pole layer which conducts a magnetic flux into the recording medium so that the recording medium is magnetized in a direction perpendicular to a surface of the recording medium, a first return yoke layer provided in a trailing side of the main magnetic pole layer, and has a recess in a top surface, a second return yoke layer provided so as to fill at least the recess of the first return yoke layer, and a thermal expansion suppression layer provided in a trailing side of the second return yoke layer. Thus, since the thermal expansion suppression layer can be provided on a surface having no recess, a possibility of a crack in the thermal expansion suppression layer can be eliminated.
摘要翻译： 提供一种能够抑制热突起的薄膜磁头。 薄膜磁头包括主磁极层，其将磁通传导到记录介质中，使得记录介质沿与记录介质的表面垂直的方向被磁化;第一返回磁轭层设置在记录介质的后侧 主磁极层，并且在顶面具有凹部，设置成填充至少第一返回磁轭层的凹部的第二返回磁轭层和设置在第二磁轭层的后侧的热膨胀抑制层 返回磁轭层。 因此，由于可以在没有凹部的表面上设置热膨胀抑制层，因此可以消除热膨胀抑制层中的裂纹的可能性。
-
5.发明授权Perpendicular magnetic write head having a structure that suppresses unintended erasure of information on a write medium at a non-writing time 有权垂直磁性写入头具有在非写入时间抑制写入介质上的信息的意外擦除的结构公开(公告)号：US07808743B2
公开(公告)日：2010-10-05
申请号：US11713740
申请日：2007-03-05
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3146 , G11B5/3163
摘要： A perpendicular magnetic write head includes an auxiliary magnetic pole layer disposed on a trailing or leading side of a main magnetic pole layer, the auxiliary magnetic pole layer being recessed from the main magnetic pole layer. A nonmagnetic layer is disposed in a layer same as the auxiliary magnetic pole layer and in front of the auxiliary magnetic pole layer, the nonmagnetic layer having an internal stress of a direction same as that of the main magnetic pole layer, and a write shield layer is disposed in a layer same as the auxiliary magnetic pole layer and in front of the auxiliary magnetic pole layer, the write shield layer being separated from the main magnetic pole layer with a gap layer in between. The nonmagnetic layer is arranged to fill up a space between the auxiliary magnetic pole layer and the write shield layer.
摘要翻译： 垂直磁性写头包括设置在主磁极层的后侧或前侧的辅助磁极层，辅助磁极层从主磁极层凹入。 非磁性层设置在与辅助磁极层相同的层中，并且在辅助磁极层的前方，具有与主磁极层的内部应力相同的内部应力的非磁性层和写入屏蔽层 设置在与辅助磁极层相同的层中，并且在辅助磁极层的前面，写入屏蔽层与主磁极层之间具有间隙层分离。 非磁性层被布置成填充辅助磁极层和写入屏蔽层之间的空间。
-
6.发明授权公开(公告)号：US07787215B2
公开(公告)日：2010-08-31
申请号：US11730153
申请日：2007-03-29
IPC分类号： G11B5/147
CPC分类号： G11B5/3133 , G11B5/3163
摘要： A thin film magnetic head is provided, in which thermal protrusion can be suppressed. The thin film magnetic head includes a main magnetic pole layer which conducts a magnetic flux into the recording medium so that the recording medium is magnetized in a direction perpendicular to a surface of the recording medium, a first return yoke layer provided in a trailing side of the main magnetic pole layer, and has a recess in a top surface, a second return yoke layer provided so as to fill at least the recess of the first return yoke layer, and a thermal expansion suppression layer provided in a trailing side of the second return yoke layer. Thus, since the thermal expansion suppression layer can be provided on a surface having no recess, a possibility of a crack in the thermal expansion suppression layer can be eliminated.
摘要翻译： 提供一种能够抑制热突起的薄膜磁头。 薄膜磁头包括主磁极层，其将磁通传导到记录介质中，使得记录介质沿与记录介质的表面垂直的方向被磁化;第一返回磁轭层设置在记录介质的后侧 主磁极层，并且在顶面具有凹部，设置成填充至少第一返回磁轭层的凹部的第二返回磁轭层和设置在第二磁轭层的后侧的热膨胀抑制层 返回磁轭层。 因此，由于可以在没有凹部的表面上设置热膨胀抑制层，因此可以消除热膨胀抑制层中的裂纹的可能性。
-
公开(公告)号：US20100084262A1
公开(公告)日：2010-04-08
申请号：US12244298
申请日：2008-10-02
IPC分类号： G11B5/33
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116
摘要： The present invention relates to a method for manufacturing a perpendicular recording magnetic head. The method for manufacturing a perpendicular recording magnetic head according to the present invention includes first to third steps. At the first step, a main magnetic pole layer is formed on a foundation layer. At the second step, a main magnetic pole forming mask whose recording-medium-facing surface is of an inverted trapezoidal shape is formed on the main magnetic pole layer. At the third step, a main magnetic pole whose recording-medium-facing surface is of an inverted trapezoidal shape is formed by performing ion milling on a laminated structure including the foundation layer and the main magnetic pole layer from a direction which makes a given angle with a lamination direction according to a bevel angle of the inverted trapezoidal shape.
摘要翻译： 本发明涉及一种用于制造垂直记录磁头的方法。 根据本发明的用于制造垂直记录磁头的方法包括第一至第三步骤。 在第一步骤中，在基础层上形成主磁极层。 在第二步骤中，在主磁极层上形成有记录介质相对表面为倒梯形形状的主磁极形成掩模。 在第三步骤中，通过对包括基础层和主磁极层的叠层结构进行离子铣削，形成具有倒梯形形状的记录介质相对表面的主磁极， 具有根据倒梯形形状的斜角的层叠方向。
-
8.发明授权公开(公告)号：US08102622B2
公开(公告)日：2012-01-24
申请号：US12318645
申请日：2009-01-05
申请人： Atsushi Yamaguchi , Michitaka Nishiyama , Shin Narushima , Hiromichi Umehara , Makoto Sato , Tatsuhiro Nojima
发明人： Atsushi Yamaguchi , Michitaka Nishiyama , Shin Narushima , Hiromichi Umehara , Makoto Sato , Tatsuhiro Nojima
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163
摘要： In a perpendicular magnetic write head manufacturing method a magnetic layer is formed on a substrate. On the magnetic layer, first and second nonmagnetic layers are formed with different materials. A mask pattern is formed on the second nonmagnetic layer, and the second nonmagnetic layer in a region not covered with the mask pattern is removed. Thereby, the patterned second nonmagnetic layer is formed while leaving the first nonmagnetic layer. The mask pattern is removed and a milling process is selectively performed on the first nonmagnetic layer and the magnetic layer with the patterned second nonmagnetic layer as a mask to remove all of the first nonmagnetic layer in an exposed region and to dig down the magnetic layer in the exposed region, thereby forming a main magnetic pole layer having an inclined part whose thickness decreases with distance from an edge position of the patterned second nonmagnetic layer.
摘要翻译： 在垂直磁性写入头制造方法中，在衬底上形成磁性层。 在磁性层上，第一和第二非磁性层由不同的材料形成。 在第二非磁性层上形成掩模图案，并且去除未被掩模图案覆盖的区域中的第二非磁性层。 由此，形成图案化的第二非磁性层，同时离开第一非磁性层。 去除掩模图案，并且在第一非磁性层和具有图案化的第二非磁性层的磁性层上选择性地进行研磨工艺作为掩模，以去除暴露区域中的所有第一非磁性层，并将 从而形成具有倾斜部分的主磁极层，该倾斜部分的厚度随着距图案化的第二非磁性层的边缘位置的距离而减小。
-
9.发明申请公开(公告)号：US20100172054A1
公开(公告)日：2010-07-08
申请号：US12318645
申请日：2009-01-05
申请人： Atsushi Yamaguchi , Michitaka Nishiyama , Shin Narushima , Hiromichi Umehara , Makoto Sato , Tatsuhiro Nojima
发明人： Atsushi Yamaguchi , Michitaka Nishiyama , Shin Narushima , Hiromichi Umehara , Makoto Sato , Tatsuhiro Nojima
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163
摘要： In a perpendicular magnetic write head manufacturing method a magnetic layer is formed on a substrate. On the magnetic layer, first and second nonmagnetic layers are formed with different materials. A mask pattern is formed on the second nonmagnetic layer, and the second nonmagnetic layer in a region not covered with the mask pattern is removed Thereby, the patterned second nonmagnetic layer is formed while leaving the first nonmagnetic layer. The mask pattern is removed and a milling process is selectively performed on the first nonmagnetic layer and the magnetic layer with the patterned second nonmagnetic layer as a mask to remove all of the first nonmagnetic layer in an exposed region and to dig down the magnetic layer in the exposed region, thereby forming a main magnetic pole layer having an inclined part whose thickness decreases with distance from an edge position of the patterned second nonmagnetic layer.
摘要翻译： 在垂直磁性写入头制造方法中，在衬底上形成磁性层。 在磁性层上，第一和第二非磁性层由不同的材料形成。 掩模图案形成在第二非磁性层上，并且未被掩模图案覆盖的区域中的第二非磁性层被去除。由此，在离开第一非磁性层的同时形成图案化的第二非磁性层。 去除掩模图案，并且在第一非磁性层和具有图案化的第二非磁性层的磁性层上选择性地进行研磨工艺作为掩模，以去除暴露区域中的所有第一非磁性层，并将 从而形成具有倾斜部分的主磁极层，该倾斜部分的厚度随着距图案化的第二非磁性层的边缘位置的距离而减小。
-
公开(公告)号：US20110090595A1
公开(公告)日：2011-04-21
申请号：US12588440
申请日：2009-10-15
申请人： Kei Hirata , Hideyuki Ukita , Shin Narushima , Isamu Toba , Hiromichi Umehara , Hisayoshi Watanabe , Hideyuki Yatsu
发明人： Kei Hirata , Hideyuki Ukita , Shin Narushima , Isamu Toba , Hiromichi Umehara , Hisayoshi Watanabe , Hideyuki Yatsu
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163
摘要： A main magnetic pole includes a first part extending from a medium facing surface to a point at a predetermined distance from the medium facing surface, and a second part other than the first part. An accommodation part for accommodating the main magnetic pole includes: a first layer having a groove; a second layer lying between the first layer and the main magnetic pole in the first layer's groove; and a third layer interposed in part between the second layer and the main magnetic pole in the first layer's groove. The second layer is formed of a metal material different from a material used to form the first layer. The third layer is formed of an inorganic insulating material. The second and third layers lie between the first layer and the first part. The second layer lies between the bottom of the first layer's groove and the second part, but the third layer does not. The distance between the bottom of the first layer's groove and the second part is smaller than that between the bottom and the first part.
-
-
-
-
-
-
-
-
-
搜索结果
22 条记录 (耗时 0.023 秒)
