公开(公告)号：US06542331B1

公开(公告)日：2003-04-01

申请号：US09546576

申请日：2000-04-10

申请人： Thomas Young Chang ,  Terence Tin-Lok Lam ,  Edward HinPong Lee ,  Samuel Wonder Yuan

发明人： Thomas Young Chang ,  Terence Tin-Lok Lam ,  Edward HinPong Lee ,  Samuel Wonder Yuan

IPC分类号： G11B531

CPC分类号： G11B5/313 ,  G11B5/1272 ,  G11B5/17 ,  G11B5/1871 ,  G11B5/312

摘要： The magnetic head of the present invention includes a P1 pole having an opening formed therethrough, and a P2 pole that is formed over the opening. A second magnetic pole tip is positioned relative to the first magnetic pole such that the first magnetic pole is symmetrically disposed relative to the second magnetic pole tip. Induction coils may be helically wound around portions of the first and/or second magnetic poles, or, alternatively, a planar, spiral induction coil may be fabricated for use with the first and second magnetic poles. An enhanced embodiment includes a first magnetic pole tip piece having a length that defines the throat length of the magnetic head and a thickness that increases the gap at rearward portions of the second magnetic pole tip of the magnetic head.

摘要翻译： 本发明的磁头包括具有穿过其形成的开口的P1极和形成在开口上的P2极。 第二磁极尖端相对于第一磁极定位，使得第一磁极相对于第二磁极尖对称设置。 感应线圈可以螺旋地卷绕在第一和/或第二磁极的一部分周围，或者，可以制造平面的螺旋感应线圈，以与第一和第二磁极一起使用。 增强实施例包括具有限定磁头的喉部长度的长度的第一磁极尖端件和增加磁头的第二磁极端部的后部的间隙的厚度。

公开(公告)号：US06525901B1

公开(公告)日：2003-02-25

申请号：US09534527

申请日：2000-03-27

申请人： Akifumi Kamijima ,  Junichi Hokushin

发明人： Akifumi Kamijima ,  Junichi Hokushin

IPC分类号： G11B531

CPC分类号： B82Y10/00 ,  G11B5/313 ,  G11B5/3967

摘要： An insulating film, provided above a first yoke portion, supports a thin film coil and has an inclined portion in an air bearing surface side. A second pole portion of a second magnetic film is opposed to a first pole portion via gap film. A second yoke portion, provided on the insulating film, continues to the second pole portion and its rear portion is joined with the first yoke portion. A top thin film coil 27 has a coil winding body portion with small thickness H1 nearest the air bearing surface and a coil winding body portion with larger thickness H3 than the thickness H3.

摘要翻译： 设置在第一磁轭部分上方的绝缘膜支撑薄膜线圈，并且在空气轴承表面侧具有倾斜部分。 第二磁性膜的第二极部通过间隙膜与第一极部相对。 设置在绝缘膜上的第二磁轭部分继续到第二磁极部分，并且其后部与第一磁轭部分接合。 顶部薄膜线圈27具有最靠近空气轴承表面的小厚度H1的线圈卷绕体部分和具有比厚度H3更大的厚度H3的线圈卷绕体部分。

公开(公告)号：US06477006B1

公开(公告)日：2002-11-05

申请号：US09573833

申请日：2000-05-18

申请人： Kiyoshi Sato

发明人： Kiyoshi Sato

IPC分类号： G11B531

CPC分类号： G11B5/3163 ,  G11B5/3109 ,  G11B5/3116 ,  G11B5/313 ,  Y10S977/934

摘要： The upper face of a lower core layer is planarized by polishing, and a lower magnetic pole layer, a gap layer, and an upper magnetic pole layer are deposited in that order on the lower core layer so that the lower core layer connects to the lower magnetic pole layer. The lower magnetic pole layer, the gap layer, and the upper magnetic pole layer are partly removed using a mask layer, and an insulating layer is deposited on the removed portion to form a main portion and an adjoining portion of a groove. A gap depth Gd is formed in the upper magnetic pole layer, and an back insulating layer is formed on the gap layer in a back region. An upper core layer is formed so as to connect to the upper magnetic pole layer and to partly cover a coil in the magnetic pole end region.

摘要翻译： 通过研磨将下芯层的上表面平坦化，并且在下芯层上依次沉积下磁极层，间隙层和上磁极层，使得下芯层连接到下磁芯层 磁极层。 使用掩模层部分去除下磁极层，间隙层和上磁极层，并且在去除部分上沉积绝缘层以形成凹槽的主要部分和邻接部分。 在上磁极层中形成间隙深度Gd，并且在背部区域的间隙层上形成背面绝缘层。 形成上芯层以连接到上磁极层并部分地覆盖磁极端区域中的线圈。

公开(公告)号：US06456459B1

公开(公告)日：2002-09-24

申请号：US09430178

申请日：1999-10-29

申请人： Yoshitaka Sasaki

发明人： Yoshitaka Sasaki

IPC分类号： G11B531

CPC分类号： G11B5/313 ,  G11B5/3116 ,  G11B5/3967 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/4906

摘要： A thin-film magnetic head and a method of manufacturing the same of the invention achieve precise control of a magnetic pole width with and a sufficient overwrite property even when the pole width is reduced and achieve precise control of a throat height. In the thin-film magnetic head of the invention, a pole portion of a bottom pole layer and an insulating layer are formed on a yoke portion of the bottom pole layer. The throat height is defined by the interface between the pole portion and the insulating layer. The pole portion and the insulating layer form a flat surface on a side of a recording gap layer. A top pole layer includes: a pole portion having a width that defines a recording track width; and a yoke portion having a width greater than that of the pole portion and magnetically coupled to the pole portion. The interface between the pole portion and the yoke portion is located on the flat recording gap layer.

摘要翻译： 本发明的薄膜磁头及其制造方法即使当磁极宽度减小并且实现喉部高度的精确控制时，也能够实现磁极宽度的精确控制和充分的覆盖特性。 在本发明的薄膜磁头中，底极层的极部和绝缘层形成在底极层的磁轭部上。 喉部高度由极部和绝缘层之间的界面限定。 极部分和绝缘层在记录间隙层的一侧形成平坦表面。 顶极层包括：具有限定记录轨道宽度的宽度的极部; 以及轭部，其宽度大于所述极部的宽度，并且磁耦合到所述极部。 极部和轭部之间的界面位于平坦记录间隙层上。

公开(公告)号：US06385009B2

公开(公告)日：2002-05-07

申请号：US09899215

申请日：2001-07-06

申请人： Masaaki Sano ,  Yoshiaki Kita ,  Shun-ichi Narumi ,  Takashi Kawabe ,  Moriaki Fuyama ,  Hisashi Takano ,  Hisano Yamamoto ,  Kenzo Masuda

发明人： Masaaki Sano ,  Yoshiaki Kita ,  Shun-ichi Narumi ,  Takashi Kawabe ,  Moriaki Fuyama ,  Hisashi Takano ,  Hisano Yamamoto ,  Kenzo Masuda

IPC分类号： G11B531

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3109 ,  G11B5/3163 ,  G11B5/3967 ,  G11B2005/3996 ,  H01F41/26

摘要： A thin film magnetic head having a first magnetic core, a second magnetic core formed on the first magnetic core, a coil disposed between the first magnetic core and second magnetic core, and a non-magnetic insulator body for separating the first magnetic core, second magnetic core and coil with respect to each other. At least one of the first magnetic core and the second magnetic core includes an electroplated thin film with an average crystal grain size smaller than 500 Å and the electroplated thin film is made of Ni—Fe alloy of which Ni is 38 to 60 wt % and Fe is 40 to 62 wt %.

摘要翻译： 一种薄膜磁头，具有第一磁芯，形成在第一磁芯上的第二磁芯，设置在第一磁芯和第二磁芯之间的线圈和用于分离第一磁芯的非磁性绝缘体，第二磁芯 磁芯和线圈相对于彼此。 第一磁芯和第二磁芯中的至少一个包括平均晶粒尺寸小于500的电镀薄膜，电镀薄膜由Ni为38〜60重量％的Ni-Fe合金构成， Fe为40〜62重量％。

公开(公告)号：US06369983B1

公开(公告)日：2002-04-09

申请号：US09374591

申请日：1999-08-13

申请人： Liubo Hong

发明人： Liubo Hong

IPC分类号： G11B531

CPC分类号： G11B5/3163 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3133

摘要： A method and system for providing a write head is disclosed. The write head includes at least one pole and an insulating layer. The at least one pole is for writing magnetic data. The method and system include providing an intermediate layer and providing at least one conductive coil. The intermediate layer is disposed between the insulating layer and the at least one conductive coil. The intermediate layer is composed of at least one material capable of being dry etched. The at least one conductive coil is in proximity to the at least one pole and is for carrying a current to energize the at least one pole during writing.

摘要翻译： 公开了一种用于提供写入头的方法和系统。 写头包括至少一个极和绝缘层。 至少一个磁极用于写磁数据。 该方法和系统包括提供中间层并提供至少一个导电线圈。 中间层设置在绝缘层和至少一个导电线圈之间。 中间层由能够被干蚀刻的至少一种材料构成。 所述至少一个导电线圈靠近所述至少一个极，并且用于承载电流以在写入期间激励所述至少一个极。

公开(公告)号：US06353511B1

公开(公告)日：2002-03-05

申请号：US09335155

申请日：1999-06-15

申请人： Zhupei Shi ,  Lien-Chang Wang ,  Bill Crue ,  Yingjian Chen ,  Syed Hossain

发明人： Zhupei Shi ,  Lien-Chang Wang ,  Bill Crue ,  Yingjian Chen ,  Syed Hossain

IPC分类号： G11B531

CPC分类号： G11B5/3967 ,  G11B5/3109 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3153 ,  G11B5/3163 ,  G11B5/455

摘要： A preferred embodiment provides a thin film write head having upper and lower pole structures each having pedestal pole tips formed with CoNiFe. The pedestal pole tips may have from about 60% to about 70% Co and from about 10% to about 15% Ni. The upper pole structure of the preferred embodiment has a laminated yoke portion having upper and lower layers. The lower layer is stitched to the pedestal pole tip of the upper pole structure and comprises FeXN, where X is selected from the group consisting of Rh, Ta, Hf, Al, Zr, Ti, Ru, Si, Cr, V, Si, Sr, Nb, Mo, Ru, and Pd. The upper layer comprises NiFe preferably having from about 15% to about 55% of Fe. It is preferred to define the lower layer of the yoke by etching FeXN material using the upper layer as a hard mask. In a preferred method and embodiment, the top surfaces of the conductor coil and the upper pedestal pole tip are planarized with an inorganic capping layer formed thereover to insulate the conductor coil from the yoke and to provide a low apex angle to form the yoke over.

摘要翻译： 优选实施例提供一种具有上和下极结构的薄膜写头，每个具有由CoNiFe形成的基座极尖。 基座极尖可以具有约60％至约70％的Co和约10％至约15％的Ni。 优选实施例的上极结构具有具有上层和下层的层叠轭部分。 下层被缝合到上极结构的基座极端，并且包括FeXN，其中X选自Rh，Ta，Hf，Al，Zr，Ti，Ru，Si，Cr，V，Si， Sr，Nb，Mo，Ru和Pd。 上层包含优选具有约15％至约55％Fe的NiFe。 优选通过使用上层作为硬掩模蚀刻FeXN材料来限定轭的下层。 在优选的方法和实施例中，导体线圈和上基座极尖的顶表面与形成在其上的无机覆盖层平坦化，以使导体线圈与轭绝缘，并提供低顶角以形成轭。

公开(公告)号：US06317291B1

公开(公告)日：2001-11-13

申请号：US09389753

申请日：1999-09-07

申请人： Yuzuru Iwai ,  Noboru Yamanaka ,  Yoshihiro Kudo

发明人： Yuzuru Iwai ,  Noboru Yamanaka ,  Yoshihiro Kudo

IPC分类号： G11B531

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/09 ,  G11B5/3109 ,  G11B5/313 ,  G11B2005/3996

摘要： It is an object of the invention to improve characteristics of a thin-film magnetic head in the case where the frequency of data to write is high, in particular. In a thin-film magnetic head of the invention an induction-type magnetic transducer includes two magnetic pole layers and a thin-film coil placed between the pole layers and insulated from the pole layers. The distance between the outermost end of the coil and a medium facing surface is greater than a throat height and measures 10 &mgr;m or less.

摘要翻译： 特别是在要写入数据的频率高的情况下，本发明的目的是改进薄膜磁头的特性。 在本发明的薄膜磁头中，感应型磁换能器包括两个磁极层和设置在极层之间并与极层绝缘的薄膜线圈。 线圈的最外端和面向介质的表面之间的距离大于喉部高度，并且测量10um或更小。

公开(公告)号：US06288871B1

公开(公告)日：2001-09-11

申请号：US09478515

申请日：2000-01-06

申请人： Masanori Tanabe

发明人： Masanori Tanabe

IPC分类号： G11B531

CPC分类号： G11B5/313 ,  G11B5/012 ,  G11B5/3109 ,  G11B5/3116

摘要： A thin film magnetic head which can suppress magnetic saturation at opposite ends of width of a narrow track width to reduce the amount of recording side-fringing onto a recording medium and which can assure a necessary recording magnetic field satisfactorily. Also a magnetic disk apparatus using the head. A second magnetic yoke has a magnetic gap depth over which the spacing of a magnetic gap keeps substantially equal toward a rear portion of the second magnetic yoke, starting at the tip of a second magnetic pole and the spacing between a first magnetic yoke and the second magnetic yoke is increased toward the rear portion, starting at a position corresponding to the magnetic gap depth. The second magnetic pole of the second magnetic yoke has in the track width direction a width for recording a signal on a track width of the recording medium. The width keeps constant over a predetermined length toward the rear portion, starting at the second magnetic pole tip and spreads monotonically toward the rear, starting at a position corresponding to the predetermined length. The predetermined length terminating in the spread start position of the width of the second magnetic yoke is set to be shorter than the magnetic gap depth.

摘要翻译： 一种薄膜磁头，其可以抑制窄轨道宽度的宽度的相对端处的磁饱和，以减少记录侧边缘到记录介质上的量，并且可以令人满意地确保必要的记录磁场。 也是使用磁头的磁盘装置。 第二磁轭具有磁隙深度，磁隙的间隔在第二磁轭的尖端处从第二磁轭的后部保持基本相等，并且第一磁轭与第二磁轭之间的间隔 从对应于磁隙深度的位置开始，磁轭向后部增加。 第二磁轭的第二磁极在磁道宽度方向上具有用于在记录介质的磁道宽度上记录信号的宽度。 从第二磁极尖端开始，宽度保持恒定在预定长度上，从第二磁极尖端开始，并且在对应于预定长度的位置开始向后延伸。 终止在第二磁轭的宽度的扩展开始位置的预定长度被设定为比磁隙深度短。