公开(公告)号：US06678117B2

公开(公告)日：2004-01-13

申请号：US09884817

申请日：2001-06-18

Applicant: Hugo Santini

Inventor： Hugo Santini

IPC: G11B5187

CPC classification number: G11B5/3116 ,  G11B5/3133 ,  G11B5/3146 ,  G11B5/3163

Abstract: A magnetic transducer with a bilayer pole piece in which a first layer of material forms the body of the pole piece and a second layer forms the pole tip after milling is disclosed, along with a disk drive using the transducer. The bilayer pole piece is used in a method to improve the determination of the optimum stopping point for the ion milling using the optically observable process of the gap layer and P1 tip layer being milled off of the P1 protection layer forming a gradually disappearing halo. The process of making the head proceeds conventionally through plating of the P1 layer which in applicant's head is the layer which forms the body of P1. The process of the invention deposits a P1 protection layer and then uses a photo lift-off technique to form a void in the P1 protection layer where the gap and the P1 and P2 tips will be formed, i.e., the zero throat region. An additional ferromagnetic layer (the “P1 tip layer”) is vacuum deposited in the void area to a thickness equal to the final desired pole tip height. The gap layer is deposited and the P2 tip is formed as in the prior art. Ion milling using the P2 tip as a mask is then performed as in the prior art with the exceptions: 1) that the P1 protection layer protects areas of the wafer which should not be milled; and 2) instead of milling a notch in the planar surface of P1, only the excess of the P1 tip layer is required to be milled.

Abstract translation: 公开了一种具有双极极片的磁传感器，其中第一层材料形成极片的主体，并且在铣削之后形成第二层形成极尖，以及使用该换能器的磁盘驱动器。 双极极片用于使用间隙层的光学可观察的工艺来改善用于离子铣削的最佳停止点的确定的方法，并且P1尖端层被从P1保护层磨成形成逐渐消失的晕圈。 制作头的过程通常通过电镀P1层，其在申请人的头部是形成P1体的层。 本发明的方法沉积P1保护层，然后使用光剥离技术在P1保护层中形成空隙，其中将形成间隙和P1和P2尖端，即零喉部区域。 在空隙区域中真空沉积额外的铁磁层（“P1尖端层”）至等于最终期望极尖高度的厚度。 间隙层被沉积，并且P2尖端如现有技术那样形成。 然后按照现有技术进行使用P2尖端作为掩模的离子研磨，不同之处在于：1）P1保护层保护晶片的不应被研磨的区域; 和2）代替在P1的平面中铣削切口，仅需要铣削过多的P1尖端层。

公开(公告)号：US06665144B2

公开(公告)日：2003-12-16

申请号：US10075182

申请日：2002-02-13

Applicant: Naoto Matono

Inventor： Naoto Matono

IPC: G11B5187

CPC classification number: G11B5/313 ,  G11B5/3116

Abstract: Provided are a thin film magnetic head and a method of manufacturing the same, which can quite reduce a pole width with high accuracy while improving overwrite characteristics. A top pole comprises a laminate constituted of an underlayer and a coating layer, which are laminated in order from the side of a write gap layer. A second coupling position of the underlayer (a position where an underlayer front-end portion is coupled to an underlayer rear-end portion) is located closer to an air bearing surface than a first coupling position of the coating layer (a position where an tip portion is coupled to a yoke portion). A first uniform-width distance and a second uniform-width distance can be set independently, thereby enabling reducing the second uniform-width distance within such a range that the accuracy in forming the tip portion can be ensured, while increasing the first uniform-width distance within such a range that the overwrite characteristics can be ensured.

Abstract translation: 提供一种薄膜磁头及其制造方法，其可以在提高覆盖特性的同时，以高精度大大降低极宽度。 顶杆包括由底层和涂层构成的层压体，其从写间隙层的侧面依次层叠。 底层的第二耦合位置（底层前端部分连接到底层后端部分的位置）位于比涂层的第一联接位置更靠近空气轴承表面（尖端 部分联接到轭部分）。 可以独立地设置第一均匀宽度距离和第二均匀宽度距离，从而能够在使得能够确保形成前端部分的精度的范围内减小第二均匀宽度距离，同时增加第一均匀宽度距离 在可以确保重写特性的范围内的距离。

公开(公告)号：US06603637B1

公开(公告)日：2003-08-05

申请号：US09615935

申请日：2000-07-13

Applicant: Peter R. Segar ,  Bal K. Gupta ,  Jeffery K. Berkowitz ,  Sanghamitra Sahu

Inventor： Peter R. Segar ,  Bal K. Gupta ,  Jeffery K. Berkowitz ,  Sanghamitra Sahu

IPC: G11B5187

CPC classification number: C23C14/48 ,  C23C8/36

Abstract: Techniques are disclosed for improving the tribology between an air bearing surface of a magnetic recording head and a magnetic recording medium. In addition, techniques are described for reducing resistance to wear and corrosion of the air bearing surface of the recording head as well as resistance to corrosion of the recording medium. Various ion beam techniques can be used to enhance the properties of the recording head and recording medium, and include ion implant techniques, ion mixing techniques and ion burnishing techniques.

Abstract translation: 公开了用于改善磁记录头的空气轴承表面和磁记录介质之间的摩擦学的技术。 此外，描述了用于降低记录头的空气轴承表面的耐磨性和腐蚀性以及耐受记录介质腐蚀的技术。 可以使用各种离子束技术来增强记录头和记录介质的性质，并且包括离子注入技术，离子混合技术和离子抛光技术。

公开(公告)号：US06578252B2

公开(公告)日：2003-06-17

申请号：US09749579

申请日：2000-12-28

Applicant: Yoshitaka Sasaki

Inventor： Yoshitaka Sasaki

IPC: G11B5187

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3163 ,  G11B5/3967 ,  G11B2005/3996 ,  Y10T29/49039 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/4906 ,  Y10T29/49064

Abstract: A method of manufacturing a thin film magnetic head allowing high performance head characteristics to be achieved without complicating manufacturing steps. At the same time an insulating film pattern defining a throat height TH is formed, an insulating film pattern is formed. When a thin film coil is formed, a coil connection portion integral with the thin film coil is simultaneously formed on the insulating film pattern, so that an upper surface of the coil connection portion is positioned higher than that of thin film coil. After covering the entire surface with an insulating film, a surface of the insulating film is polished until both of an upper connection portion and the coil connection portion are exposed, so that only the coil connection portion can be exposed while the thin film coil remains unexposed.

Abstract translation: 制造能够实现高性能头部特性而不使制造步骤复杂化的薄膜磁头的方法。 同时形成限定喉部高度TH的绝缘膜图案，形成绝缘膜图案。 当形成薄膜线圈时，在绝缘膜图案上同时形成与薄膜线圈成一体的线圈连接部分，使得线圈连接部分的上表面被定位成高于薄膜线圈的上表面。 在用绝缘膜覆盖整个表面之后，抛光绝缘膜的表面，直到上部连接部分和线圈连接部分都露出，使得只有线圈连接部分可以暴露，同时薄膜线圈保持未曝光 。

公开(公告)号：US06507454B1

公开(公告)日：2003-01-14

申请号：US09050477

申请日：1998-03-30

Applicant: Dallas W. Meyer ,  Steven B. Slade ,  Jeffery K. Berkowitz ,  Edward M. Simpson

Inventor： Dallas W. Meyer ,  Steven B. Slade ,  Jeffery K. Berkowitz ,  Edward M. Simpson

IPC: G11B5187

CPC classification number: G11B5/102 ,  G11B5/09 ,  G11B5/1871

Abstract: A slider includes a magnetic head having first and second magnetic poles separated by a gap. A recess in the air-bearing surface extends into at least the first magnetic pole and has a first portion having a length parallel to the gap length to define a gap width orthogonal to the gap length. The first portion of the recess has a curved depth defining a curved profile along its length. In one embodiment, the recess has a second portion having a length orthogonal to the gap length and a depth defining a curved profile along its length.

Abstract translation: 滑块包括具有由间隙分开的第一和第二磁极的磁头。 空气轴承表面中的凹部至少延伸到第一磁极，并且具有长度与间隙长度平行的第一部分，以限定与间隙长度正交的间隙宽度。 凹部的第一部分具有沿其长度限定弯曲轮廓的弯曲深度。 在一个实施例中，凹部具有与间隙长度正交的长度的第二部分和沿其长度限定弯曲轮廓的深度。

公开(公告)号：US06424489B1

公开(公告)日：2002-07-23

申请号：US08690525

申请日：1996-07-31

Applicant: Franciscus W. A. Dirne ,  Victor Zieren ,  Arnold Broese Van Groenou ,  Leo-Franciscus M. Van Oorschot ,  Peter Lasinski ,  Mathijs De Jongh ,  Freddy Roozeboom

Inventor： Franciscus W. A. Dirne ,  Victor Zieren ,  Arnold Broese Van Groenou ,  Leo-Franciscus M. Van Oorschot ,  Peter Lasinski ,  Mathijs De Jongh ,  Freddy Roozeboom

IPC: G11B5187

CPC classification number: G11B5/3106 ,  G11B5/102 ,  G11B5/255 ,  G11B5/40

Abstract: Magnetic head having a head face (5) and comprising a head structure composed of thin layers and provided with a transducing element (E11), in which different materials occurring in different areas are present in the head face. The head face is provided with a first layer (31) of a material which is more sensitive to corrosion than other materials in the head face, and the first layer is provided with a second layer (33) of a wear-resistant material which is more insensitive to corrosion than the material of the first layer. The second layer constitutes a contact face (35) for cooperation with a magnetic tape (7).

Abstract translation: 具有头面（5）的磁头，包括由薄层构成的头部结构，并设置有转印元件（E11），其中在头面中存在不同的区域中出现的不同材料。 头表面设有第一层（31），该第一层（31）具有比头部表面中的其它材料更易于腐蚀的材料，并且第一层设置有耐磨材料的第二层（33） 比第一层的材料更不敏感。 第二层构成与磁带（7）配合的接触面（35）。

公开(公告)号：US06771462B1

公开(公告)日：2004-08-03

申请号：US09665598

申请日：2000-09-19

Applicant: Sakhrat Khizroev ,  Dmitri Litvinov ,  Mark H. Kryder

Inventor： Sakhrat Khizroev ,  Dmitri Litvinov ,  Mark H. Kryder

IPC: G11B5187

CPC classification number: G11B5/1278 ,  G11B5/1871 ,  G11B5/3163

Abstract: A perpendicular recording head for use with magnetic recording media includes a main pole having a concave tip. The concave tip focuses the magnetic flux from the main pole onto a smaller area of the magnetic recording medium than a conventional main pole when the main pole is at its flying height from the magnetic recording medium. Although the most preferred perpendicular recording head includes a concave cavity having an elliptical profile when viewed from the side, any substantially concave cavity may be used advantageously.

Abstract translation: 用于磁记录介质的垂直记录头包括具有凹形尖端的主极。 当主极处于与磁记录介质的飞行高度时，凹形尖端将来自主极的磁通量聚焦到比常规主极小的磁记录介质的较小区域上。 虽然最优选的垂直记录头包括从侧面观察时具有椭圆形轮廓的凹腔，但是可以有利地使用任何基本上凹的腔。

公开(公告)号：US06741421B2

公开(公告)日：2004-05-25

申请号：US10046973

申请日：2002-01-17

Applicant: Masafumi Mochizuki ,  Tomohiro Okada ,  Atsushi Nakamura

Inventor： Masafumi Mochizuki ,  Tomohiro Okada ,  Atsushi Nakamura

IPC: G11B5187

CPC classification number: G11B5/1278 ,  G11B5/1872 ,  G11B5/3967 ,  G11B5/4886 ,  G11B2005/0029 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

Abstract: A single pole type magnetic head has a writing head including a main pole and an auxiliary pole, and a reading head including a read element, wherein the main pole has a recess on the trailing side of its air bearing surface. When recording is performed on a perpendicular medium by using the single pole type magnetic head, the magnetic field distribution on the trailing side of the main pole air bearing surface is linearized, whereby the magnetic reversal is determined. As a result, a bit is recorded without curving the shape of magnetic reversal. Accordingly, when the bit is read, the magnetic reversal width appears to be large, so that the half-width of a solitary wave is increased, and at the same time, the recording track width is narrowed with an increase in linear recording density.

Abstract translation: 单极型磁头具有包括主极和辅助极的写入头和包括读取元件的读取头，其中主极在其空气支承表面的后侧具有凹部。 当通过使用单极型磁头在垂直介质上进行记录时，主极空气轴承表面的后侧的磁场分布被线性化，由此确定磁反转。 结果，在不弯曲磁性反转的形状的情况下记录位。 因此，当读取位时，磁反转宽度看起来很大，使得孤立波的半宽度增加，并且同时，记录磁道宽度随着线性记录密度的增加而变窄。

公开(公告)号：US06700739B2

公开(公告)日：2004-03-02

申请号：US09826367

申请日：2001-04-05

Applicant: Yong-su Kim ,  Young-hoon Im ,  Byung-kyu Lee

Inventor： Yong-su Kim ,  Young-hoon Im ,  Byung-kyu Lee

IPC: G11B5187

CPC classification number: G11B5/313 ,  G11B5/1871 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/3166

Abstract: A magnetic head including an upper pole and a lower pole for generating a leakage magnetic flux to magnetize a recording medium to have a predetermined pattern, wherein the upper pole has a structure in which the central portion of a side opposite to the recording medium is thicker than the edges of the side. In this magnetic head, the upper pole has a shape in which its central portion protrudes higher than its edges. Thus, the shape of a magnetic field distributed can be maintained rectangular even if the width of the upper pole is reduced, which enables an increase in the track density of a recording medium.

Abstract translation: 一种包括上极和下极的磁头，用于产生泄漏磁通以磁化记录介质以具有预定图案，其中上极具有其中与记录介质相对的一侧的中心部分较厚的结构 比边的边缘。 在该磁头中，上极具有其中心部分比其边缘突出的形状。 因此，即使上极的宽度减小，分布的磁场的形状也可以保持矩形，这使得能够增加记录介质的轨道密度。

公开(公告)号：US06636390B2

公开(公告)日：2003-10-21

申请号：US09801698

申请日：2001-03-09

Applicant: Tomomi Funayama ,  Masatoshi Yoshikawa ,  Takashi Koizumi ,  Akio Hori ,  Yuichi Osawa

Inventor： Tomomi Funayama ,  Masatoshi Yoshikawa ,  Takashi Koizumi ,  Akio Hori ,  Yuichi Osawa

IPC: G11B5187

CPC classification number: B82Y10/00 ,  G11B5/3903 ,  G11B5/3967

Abstract: A magnetic head for vertical magnetic. The magnetic head includes: a recording head including a first main pole and a first return yoke, the first main pole having a first medium facing portion, the first return yoke having a second medium facing portion, and a reproducing head including a second main pole and a second return yoke, the second main pole having a third medium facing portion, the second return yoke having a fourth medium facing portion, first angle &thgr;1 between first and second straight lines being smaller than second angle &thgr;2 between the first straight line and third straight line, the first straight line connecting centers of medium facing surfaces the first medium facing portion and the second medium facing portion, the second straight line connecting opposing corners of medium facing surfaces of the first medium facing portion and the second medium facing portion, and the third straight line connecting centers of medium facing surfaces of the third medium facing portion and the fourth medium facing portion.

Abstract translation: 用于垂直磁性的磁头。 磁头包括：记录头，包括第一主极和第一返回轭，第一主极具有第一介质面对部分，第一返回轭具有第二介质面对部分，以及再现头，包括第二主极 和第二返回轭，所述第二主极具有第三介质面对部分，所述第二返回轭具有第四介质面对部分，第一和第二直线之间的第一角度θ1小于第一直线与第三直线之间的第二角度θ2 第一直线连接介质相对表面的第一介质面向部分和第二介质面向部分的中心，第二直线连接第一介质面向部分和第二介质面向部分的介质相对表面的相对角，以及 第三直线连接第三介质面向部分的介质相对表面的中心和面向p的第四介质 原因。