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    • 105. 发明申请
    • Thin film magnetic head and manufacturing method thereof
    • 薄膜磁头及其制造方法
    • US20050185337A1
    • 2005-08-25
    • US10782930
    • 2004-02-23
    • Yoshitaka SasakiTakehiro Kamigama
    • Yoshitaka SasakiTakehiro Kamigama
    • G11B5/147G11B5/31
    • G11B5/3116Y10T29/49043Y10T29/49044Y10T29/49046Y10T29/4906
    • In a write element of a thin film magnetic head, a second pole portion has a reduced width in the medium-facing surface side. A first pole portion includes a trimmed portion in such a position that the trimmed portion faces the second pole portion in the medium-facing surface side, and the trimmed portion has a reduced width to fit the second pole portion. The first pole portion includes an extending portion that extends so as to cover one surface of a coil facing the second pole portion. To manufacture the thin film magnetic head, a part which the first pole portion is composed of is formed so that said part extends to cover the upper surface of the coil, and the first pole portion is trimmed so as to have a width fitting the second pole portion.
    • 在薄膜磁头的写入元件中,第二极部在面向中间的表面侧具有减小的宽度。 第一极部包括修剪部分,该修剪部分在修剪部分面向介质相对表面侧中的第二极部分,并且修剪部分具有减小的宽度以配合第二极部分。 第一极部分包括延伸部分,其延伸以覆盖面向第二极部分的线圈的一个表面。 为了制造薄膜磁头,由第一极部构成的部分形成为使得所述部分延伸以覆盖线圈的上表面,并且第一极部被修整成具有适合第二极部的第二极部的宽度 极部分。
    • 106. 发明申请
    • Thin-film magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive
    • 薄膜磁头,制造方法,磁头万向架组件和硬盘驱动器
    • US20050185333A1
    • 2005-08-25
    • US10781827
    • 2004-02-20
    • Yoshitaka SasakiTakehiro Kamigama
    • Yoshitaka SasakiTakehiro Kamigama
    • G11B5/31G11B5/17G11B5/33G11B5/48
    • G11B5/4826G11B5/33
    • A thin-film magnetic head comprises first and second magnetic pole groups, magnetically connected to each other, having respective magnetic pole parts opposing each other on a side of a medium-opposing surface; a recording gap layer formed between the magnetic pole parts; and a thin-film coil insulated from the first and second magnetic pole groups and wound helically about at least one of them or flatly spirally wound about a junction connecting the first and second magnetic pole groups to each other; which are laminated on a substrate. The thin-film coil comprises a first conductor group having a plurality of inner conductor parts disposed between the first and second magnetic pole groups, and a second conductor group having a plurality of outer conductor parts disposed outside the second magnetic pole group or junction. The first conductor group has an insulating contact structure in which the inner conductor parts are in contact with each other by way of an insulating film. An inner relaxing part comprising a material softer than at least one of the first, second conductor groups and the first, second magnetic pole groups and being in contact with the first conductor group by way of an insulating film is provided.
    • 薄膜磁头包括彼此磁连接的第一和第二磁极组,它们在介质相对表面的一侧具有彼此相对的各自的磁极部分; 形成在所述磁极部之间的记录间隙层; 以及薄膜线圈,其与所述第一和第二磁极组绝缘并围绕其中的至少一个螺旋形地缠绕,或者围绕将所述第一和第二磁极组彼此连接的结的平面螺旋形缠绕; 其层压在基板上。 薄膜线圈包括具有设置在第一和第二磁极组之间的多个内部导体部分的第一导体组和具有设置在第二磁极组或接合部之外的多个外部导体部分的第二导体组。 第一导体组具有绝缘接触结构,其中内导体部分通过绝缘膜彼此接触。 提供了一种内部放松部分,其包括比第一,第二导体组和第一,第二磁极组中的至少一个更柔软的材料,并且通过绝缘膜与第一导体组接触。
    • 108. 发明申请
    • Thin film magnetic head and manufacturing method thereof
    • 薄膜磁头及其制造方法
    • US20050083607A1
    • 2005-04-21
    • US10687634
    • 2003-10-20
    • Yoshitaka SasakiTakehiro Kamigama
    • Yoshitaka SasakiTakehiro Kamigama
    • G11B5/31G11B5/147G11B5/187H01F10/16H01F10/32H01F41/18
    • G11B5/3136G11B5/1877
    • The invention is directed to improvement of a write element of a thin film magnetic head. The first pole portion projects from a flat surface of a first yoke portion at a medium-facing surface side and having a reduced width at its upper end. The second pole portion faces the upper end of the first pole portion, having the same width as the upper end of the first pole portion, with the gap film interposed between the second pole portion and the upper end of the first pole portion. The first pole portion includes a magnetic film adjacent to the gap film, the magnetic film etched at both sides in width direction to have a narrowed portion having substantially the same width as the second pole portion, and a base portion connected to the narrowed portion, increasing in thickness toward the narrowed portion.
    • 本发明旨在改进薄膜磁头的写入元件。 第一极部从中间面侧的第一磁轭部的平坦面突出,在其上端具有减小的宽度。 第二极部分面对第一极部分的上端,具有与第一极部分的上端相同的宽度,间隙膜介于第二极部分和第一极部分的上端之间。 第一极部包括与间隙膜相邻的磁性膜,在宽度方向两侧蚀刻的磁性膜具有与第二极部大致相同的宽度的变窄部,以及连接于变窄部的基部, 朝向狭窄部分的厚度增加。
    • 110. 发明授权
    • Method of manufacturing a thin film magnetic head
    • 制造薄膜磁头的方法
    • US07549216B2
    • 2009-06-23
    • US11377267
    • 2006-03-17
    • Yoshitaka SasakiTakehiro KamigamaHiroyuki Itoh
    • Yoshitaka SasakiTakehiro KamigamaHiroyuki Itoh
    • G11B5/17
    • B82Y25/00B82Y10/00G11B5/17G11B5/3116G11B5/3163G11B5/3906G11B5/3909G11B2005/3996Y10T29/4906Y10T29/49062Y10T29/49064
    • The invention is directed to a method for manufacturing a thin film magnetic head comprising forming a first coil, a first pole piece and a first back gap piece on a first insulating film formed on a surface of a first magnetic film, so that the first coil, the first pole piece and the first back gap piece have a taper angle making a sectional shape wider in a lower part and narrower in an upper part; forming a second insulating film on surfaces of the first coil, the first pole piece and the first back gap piece; forming a first seed film on the second insulating film; growing a first plating film for a second coil on the first seed film in an area where the second coil is to be formed, so that the first plating film fills up spaces between the first pole piece and an outermost coil turn of the first coil, between coil turns of the first coil, and between an innermost coil turn of the first coil and the first back gap piece; and flattening the first plating film by polishing, so that to obtain a pattern of the second coil.
    • 本发明涉及一种制造薄膜磁头的方法,包括在形成在第一磁性膜的表面上的第一绝缘膜上形成第一线圈,第一极片和第一后隙片,使得第一线圈 所述第一极靴和所述第一后部间隔件具有锥形角度,使下部形成较宽的截面形状,并且在上部较窄; 在第一线圈,第一极靴和第一后隙片的表面上形成第二绝缘膜; 在所述第二绝缘膜上形成第一种子膜; 在要形成第二线圈的区域中,在第一种子膜上生长用于第二线圈的第一镀膜,使得第一镀膜填充第一线圈和第一线圈的最外侧线圈圈之间的空间, 在第一线圈的线圈匝之间以及第一线圈的最内侧的线圈匝与第一后部间隙片之间; 并通过研磨来平坦化第一镀膜,从而获得第二线圈的图案。