专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2006172548A Thin film magnetic head, head gimbal assembly, and hard disk drive 审中-公开
标题翻译：薄膜磁头，头盖组件和硬盘驱动
公开(公告)号：JP2006172548A
公开(公告)日：2006-06-29
申请号：JP2004360889
申请日：2004-12-14
申请人： Tdk Corp , Tdk株式会社
发明人： TANAKA KOSUKE , SHIMAZAWA KOJI , TERUNUMA KOICHI , SASAKI TETSUO
IPC分类号： G11B5/39
摘要： PROBLEM TO BE SOLVED: To provide a thin film magnetic head including a magnetoresistance effect element by which the generation rate of Barkhausen noises is drastically reduced and arrangement is set concerning a free layer and bias magnetic field applying layers.
SOLUTION: The pair of bias magnetic field applying layers are arranged at both end parts forming a junction taper shape in the magnetoresistance effect film. When the thin film magnetic head is viewed from an ABS (Air Bearing SUrface) side with a substrate facing down, an X-axis is regulated by a line on the most upper surface constituting the free layer. A Y-axis is orthogonally crossed with the X-axis and regulated by a line passing in the most right direction of the line on the most upper surface constituting the free layer. In X-Y coordinate axes with the intersection of the X and Y axes as an original point concerning the thin film magnetic head, the distal end of one bias magnetic field applying layer arranged at an original point side end part is positioned in a first or fourth quadrant, and also a distance from the distal end of the bias magnetic field applying layer to the original point is within the range of 11nm.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种包括磁阻效应元件的薄膜磁头，通过该磁阻效应元件，巴克豪森噪声的产生速率急剧降低，并且关于自由层和偏置磁场施加层设置了布置。解决方案：一对偏置磁场施加层布置在磁阻效应膜中形成结锥形的两端部处。当从ABS（空气轴承表面）侧观察薄膜磁头时，基板朝下，X轴由构成自由层的最上面的线调节。 Y轴与X轴正交，并由构成自由层的最上面的线的最右侧的线路进行调节。在XY坐标轴上，X轴与Y轴的交点作为薄膜磁头的原点，配置在原点侧端部的一个偏磁场施加层的前端位于第一或第四象限并且从偏置磁场施加层的远端到原点的距离也在11nm的范围内。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2004206842A Thin film magnetic head, thin film magnetic head assembly, storage device and manufacturing method for thin film magnetic head 审中-公开
公开(公告)号：JP2004206842A
公开(公告)日：2004-07-22
申请号：JP2002377674
申请日：2002-12-26
申请人： Tdk Corp , Tdk株式会社
发明人： TANAKA KOSUKE , SHIMAZAWA KOJI , TERUNUMA KOICHI
IPC分类号： G11B5/39
CPC分类号： G11B5/3906 , Y10T29/49052
摘要： PROBLEM TO BE SOLVED: To provide a thin film magnetic head in which an effective track width is prevented from spreading and very high output stability is obtained by more reducing read-blurring at both ends in the track width direction of a magnetoresistance effect film. SOLUTION: On both sides of an MR film 7 in the track width direction, a 1st electrode layer 13 and a magnetic domain control layer 9 are layered. When using, as the reference plane G, the plane on the side of a lower gap layer 5 of the magnetic domain control layer 9 at the positions where the 1st electrode layer 13 and the magnetic domain control layer 9 are layered, the spacing L1 from the reference plane G up to the plane on the side of the upper gap layer 17 of the electrode layer 13 is made narrower than the spacing L2 from the reference plane G up to the plane on the side of the upper gap layer 17 of the MR film 7. Moreover, the spacing L3 between a lower magnetic shielding layer 3 and an upper magnetic shielding layer 19 at the positions where the magnetic domain layer 9 and the 1st electrode layer 13 are layered is set narrower than the spacing L4 between the lower magnetic shielding layer 3 and the upper magnetic shielding layer 19 at the position of the MR film 7. COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2012255796A Magnetic sensor and method of manufacturing the same 有权
标题翻译：磁传感器及其制造方法
公开(公告)号：JP2012255796A
公开(公告)日：2012-12-27
申请号：JP2012174718
申请日：2012-08-07
申请人： Tdk Corp , Tdk株式会社
发明人： OTA NAOKI , TERUNUMA KOICHI , MIURA SATOSHI , SAKAI MASANORI , YAMAZAKI HIROSHI
IPC分类号： G01R33/09 , H01L43/08 , H01L43/12
摘要： PROBLEM TO BE SOLVED: To provide a magnetic sensor that has a compact configuration and excellent detection performance of a magnetic field and is easily manufactured.SOLUTION: A magnetic sensor includes a first and a second MR elements that contain a magnetization fixed layer 63, an intervention layer 62, and a magnetization free layer 61 in order respectively and show resistance changes in opposite directions with each other by a signal magnetic field. Here, the magnetization fixed layer 63 in the first MR element has a synthetic structure including a pinned layer 631, a bonding layer 632, and a pinned layer 633 in an antiferromagnetic coupling with the pinned layer 631 in order from the intervention layer 62 side. With the synthetic structure, the total magnetic moment of the pinned layer 633 is larger than that of the pinned layer 631. On the other hand, the magnetization fixed layer 63 in the second MR element is composed of a single or a plurality of ferromagnetic materials.
摘要翻译：要解决的问题：提供具有紧凑结构和优异的磁场检测性能并且容易制造的磁传感器。解决方案：磁传感器包括分别依次分别包含磁化固定层63，干涉层62和无磁化层61的第一和第二MR元件，并且显示出相反方向上的电阻变化信号磁场。这里，第一MR元件中的磁化固定层63具有包括钉扎层631，接合层632和钉扎层633的合成结构，其与干涉层62侧的顺序与钉扎层631反铁磁耦合。通过合成结构，被钉扎层633的总磁矩大于被钉扎层631的总磁矩。另一方面，第二MR元件中的磁化固定层63由单个或多个铁磁材料构成。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2006146975A Manufacturing method of thin film magnetic head 审中-公开
标题翻译：薄膜磁头的制造方法
公开(公告)号：JP2006146975A
公开(公告)日：2006-06-08
申请号：JP2004331477
申请日：2004-11-16
申请人： Tdk Corp , Tdk株式会社
发明人： TANAKA KOSUKE , TERUNUMA KOICHI , SASAKI TETSUO , HADATE HITOSHI
IPC分类号： G11B5/39
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for reducing resistance of a lead pattern and a manufacturing method for making a rear part of a MR height a straight shape by reviewing specifications of a tip shape of a high trimming pattern.
SOLUTION: The high trimming pattern formed in a high trimming process is constituted so that the pattern is provided with a straight line part of distance X formed so as to hold a magneto-resistance effect film being a magnet sensing part between them at a prescribed position of the rear end part of the MR height in its tip shape part, and a triangle part extended to the interior side (reverse direction to ABS) from both end parts of the distance X respectively at angle θ, relation between the distance X of the straight line (unit:μm) and the angle θ(unit:deg.) satisfies a range prescribed by the prescribed relational expression.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种降低引线图案的电阻的制造方法和通过回顾高修剪图案的尖端形状的规格来制造MR高度的后部的直线形状的制造方法。解决方案：在高修剪过程中形成的高修剪图案被构造成使得图案设置有形成的距离X的直线部分，以便在其之间保持作为磁体感测部分的磁阻效应膜在其尖端形状部分中MR高度的后端部分的规定位置和从距离X的两个端部分别以角度θ延伸到内侧（与ABS相反的方向）的三角形部分之间的距离直线（单位：μm）的X和角度θ（单位：deg。）满足规定关系式规定的范围。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005327915A Magneto-resistance effect element, manufacturing method thereof, thin film magnetic head, magnetic head device, magnetic recorder and reproducing device 审中-公开
标题翻译：磁阻效应元件，其制造方法，薄膜磁头，磁头装置，磁记录器和再生装置
公开(公告)号：JP2005327915A
公开(公告)日：2005-11-24
申请号：JP2004144942
申请日：2004-05-14
申请人： Tdk Corp , Tdk株式会社
发明人： TERUNUMA KOICHI , TANAKA KOSUKE
IPC分类号： G11B5/39 , H01L43/08 , H01L43/10 , H01L43/12
摘要： PROBLEM TO BE SOLVED: To provide the manufacturing method of a magneto-resistance effect element, a magneto resistance effect element, a thin film magnetic head and the like, capable of improving reproducing characteristics without causing problems such as electromigration and deformation.
SOLUTION: In the magneto-resistance effect element, electrode layers 47 and 49 for supplying sense current to a magneto-resistance effect film 41 is provided so that the end may override a magneto-resistance effect film, overcoats 51 and 53 for etching prevention are covered so that the end may be exposed on the electrode layers, and etching processing is performed to the exposure end. After etching processing, an overcoat 55 for preventing electromigration is covered for the etching prevention overcoats, the exposed part of the electrode layer, and the magneto-resistance effect film. Consequently, recesses 65 and 67 are formed by etching processing on the surface opposite to the overcoat 55 set at the end by the side of the magneto-resistance effect film of the electrode layer.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供可以改善再现特性而不引起电迁移和变形等问题的磁阻效应元件，磁阻效应元件，薄膜磁头等的制造方法。解决方案：在磁阻效应元件中，提供用于向磁阻效应膜41提供感测电流的电极层47和49，使得端可以覆盖磁阻效应膜，外罩51和53用于覆盖防蚀蚀，使得端部可能暴露在电极层上，并且对曝光端进行蚀刻处理。在蚀刻处理之后，覆盖用于防止电迁移的外涂层55用于防蚀涂层，电极层的暴露部分和磁阻效应膜。因此，通过在由电极层的磁阻效应膜的一侧设置的外罩55的相反的表面上的蚀刻处理形成凹部65和67。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004103806A Exchangeable coupling film, spin valve film, thin film magnetic head, magnetic head device, and magnetic recoding/reproducing apparatus 有权
公开(公告)号：JP2004103806A
公开(公告)日：2004-04-02
申请号：JP2002263199
申请日：2002-09-09
申请人： Tdk Corp , Tdk株式会社
发明人： SHIMAZAWA KOJI , TSUCHIYA YOSHIHIRO , TERUNUMA KOICHI
IPC分类号： G11B5/39 , B32B9/00 , G01R33/09 , H01F10/08 , H01F10/32 , H01L43/08
CPC分类号： B32B15/01 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3912 , G11B2005/3996 , Y10T428/1143 , Y10T428/115
摘要： PROBLEM TO BE SOLVED: To provide an exchangeable coupling film which can reduce the thickness of a film thinner than that of a prior art and has sufficient exchangeable coupling energy, and also to provide a spin valve film, thin film magnetic head, magnetic head device and magnetic recording/reproducing apparatus using the same film. SOLUTION: The exchangeable coupling film 100 comprises a ferromagnetic layer laminating layer body 41 provided with a couple of second ferromagnetic layers 11A, 11B which include a first ferromagnetic layer 13 including a ferromagnetic material having a body-centered cubic structure and a ferromagnetic material having a face-centered cubic structure, and are formed on both surfaces of the first ferromagnetic layer and an anti-ferromagnetic layer 7 which includes an irregular alloy and is formed on one second ferromagnetic layer. Since the sufficient exchangeable coupling energy can be generated even when the thickness of the anti-ferromagnetic layer 7 is reduced thinner than that of a prior art, the thickness of the exchangeable coupling film 100 can be reduced. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2003272112A Thin-film magnetic head, its manufacturing method and magnetic disk device 有权
标题翻译：薄膜磁头，其制造方法和磁盘设备
公开(公告)号：JP2003272112A
公开(公告)日：2003-09-26
申请号：JP2002076647
申请日：2002-03-19
申请人： Tdk Corp , Tdk株式会社
发明人： TANAKA KOSUKE , TERUNUMA KOICHI , ITO NORIYUKI
IPC分类号： G11B5/39 , H01L43/08 , H01L43/12
摘要： PROBLEM TO BE SOLVED: To provide a thin-film magnetic head which comprises a very small size magnetic domain control layer capable of promoting the single magnetic domain formation of a magneto-sensitive layer and reducing Barkhausen noise, its forming method, and a magnetic disk device equipped with the thin-film magnetic head. SOLUTION: At least a part of the magnetic domain control layer of an area which hinders the single magnetic domain formation of a magneto-sensitive layer is eliminated while the magnetic domain control layer of an area which promotes the single magnetic domain formation of the magneto-sensitive layer is left. Thus, the single magnetic domain formation of the magneto-sensitive layer is achieved, and noise such as Barkhausen noise is suppressed. Additionally, a method is employed which first forms a magnetic domain control layer having a large area and then eliminates an unnecessary magnetic domain control layer which hinders the single magnetic domain formation of the magneto- sensitive layer. Thus, a very small size magnetic domain layer having a desired shape is accurately and easily formed. COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种薄膜磁头，其包括能够促进磁敏层的单磁畴形成和减少巴克豪森噪声的非常小的磁畴控制层，其形成方法和配备有薄膜磁头的磁盘装置。解决方案：消除阻碍磁敏感层的单磁畴形成的区域的磁畴控制层的至少一部分，而促进单磁畴形成的区域的磁畴控制层留下磁敏层。因此，实现了磁敏感层的单磁畴形成，抑制了巴克豪森噪声等噪音。此外，采用首先形成具有大面积的磁畴控制层，然后消除阻碍磁敏层的单磁畴形成的不必要的磁畴控制层的方法。因此，具有期望形状的非常小的磁畴层被精确且容易地形成。版权所有（C）2003，JPO

8. 发明专利

JP2007299460A Magnetic head, and magnetic recording and reproducing device 审中-公开
标题翻译：磁头和磁记录和再现装置
公开(公告)号：JP2007299460A
公开(公告)日：2007-11-15
申请号：JP2006125802
申请日：2006-04-28
申请人： Tdk Corp , Tdk株式会社
发明人： SATO TOSHITAKE , SOENO KEIICHI , TERUNUMA KOICHI , ROPPONGI TETSUYA , IKEDA HIROSHI
IPC分类号： G11B5/31 , G11B5/09
CPC分类号： G11B5/1278 , G11B5/02 , G11B5/17 , G11B5/3123 , G11B5/65 , G11B2005/0005 , G11B2005/0029
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head which can record data with high precision on a recording layer of a large magnetic coercive force without heating, and a magnetic recording and reproducing device equipped therewith. SOLUTION: The magnetic head 16 has the main pole 20, a front recording shield (auxiliary magnetic pole) 22, a rear recording shield (auxiliary magnetic pole) 23, a main coil 24 provided on the main pole 20 to generate a perpendicular recording magnetic field, and an auxiliary coil 26 to generate an in-plane ac magnetic field of a microwave band frequency on the main pole 20. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在没有加热的情况下在高矫顽力的记录层上以高精度记录数据的磁头以及配备有该磁记录和重放装置的磁头。解决方案：磁头16具有主极20，前记录屏蔽（辅助磁极）22，后记录屏蔽（辅助磁极）23，设置在主极20上的主线圈24，以产生垂直记录磁场和辅助线圈26，以在主极20上产生微波频带的平面内交流磁场。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2005332897A Magnetic resistance effect element, thin film magnetic head, magnetic head device and manufacturing method of magnetic record reproducing device as well as magnetic resistance effect element 审中-公开
标题翻译：磁阻效应元件，薄膜磁头，磁头装置以及作为磁阻效应元件的磁记录再生装置的制造方法
公开(公告)号：JP2005332897A
公开(公告)日：2005-12-02
申请号：JP2004148553
申请日：2004-05-19
申请人： Tdk Corp , Tdk株式会社
发明人： TERUNUMA KOICHI , SASAKI TETSUO
IPC分类号： G11B5/39 , H01L43/08 , H01L43/10 , H01L43/12
摘要： PROBLEM TO BE SOLVED: To provide a magnetic resistance effect element or the like which prevents the generation of electromigration at the end of an electrode film in a reed overlay structure.
SOLUTION: The thin film magnetic head 1 is provided with a read overlay type reading element 7. Such a reading element is equipped with a magnetic resistance effect film 41, electrode films 47, 49 and protection films 51, 53, 55. The electrode films are provided so as to supply a sense current to the magnetic resistance effect film. Further, the protection films comprise etching preventing protection films 51, 53 for covering the upper surface of the electrode films, and an electromigration preventing protection film 55 for covering the upper surface of the etching preventing protection films, the side surfaces 47a, 49a of the electrode films and the upper surface of the magnetic resistance effect film.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种防止在簧片覆盖结构中在电极膜末端产生电迁移的磁阻效应元件等。
解决方案：薄膜磁头1设置有读取覆盖型读取元件7.这种读取元件配备有磁阻效应膜41，电极膜47,49和保护膜51,53,55。设置电极膜以便向磁阻效应膜提供感测电流。此外，保护膜包括用于覆盖电极膜的上表面的防蚀保护膜51,53和用于覆盖防蚀蚀保护膜的上表面的防电镀保护膜55，以及防腐保护膜的侧表面47a，49a 电极膜和磁阻效应膜的上表面。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005018950A Thin film magnetic head, head gimbal assembly, and hard disk drive 有权
标题翻译：薄膜磁头，头盖组件和硬盘驱动
公开(公告)号：JP2005018950A
公开(公告)日：2005-01-20
申请号：JP2003186388
申请日：2003-06-30
申请人： Tdk Corp , Tdk株式会社
发明人： SHIMIZU TOMOAKI , SHIMAZAWA KOJI , TANAKA KOSUKE , TERUNUMA KOICHI
IPC分类号： C22C19/07 , C22C38/00 , C22C38/12 , G11B5/00 , G11B5/39 , H01F10/16 , H01F10/32 , H01L43/08 , H01L43/10
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3906 , G11B5/3909 , G11B2005/0016
摘要： PROBLEM TO BE SOLVED: To provide a thin film magnetic head which can maintain the coercive force Hc in the in-plane direction of a bias magnetic-field applying layer at high level, which can apply an effective bias magnetic field even when formation of a narrower gap and a narrower track are further intended, and which can suppress the generating of Barkhausen noises.
SOLUTION: This thin film magnetic head is provided with a magnetoresistance effect element which has a magnetoresistance effect film. The magnetoresistance effect film is a multilayer which has a non-magnetic layer, a ferromagnetic layer formed on one surface of the non-magnetic layer, a soft-magnetic layer formed on the other surface of the non-magnetic layer, a pinning layer formed in contact with one surface (an opposite surface to a surface in contact with the non-magnetic layer) of the ferromagnetic layer in order to pin the magnetization direction of the ferromagnetic layer. At least at the both ends of the soft-magnetic layer of the magnetoresistance effect film, a pair of bias magnetic-field applying layers for applying a vertical bias magnetic field to the soft-magnetic layer through a magnetic base layer are disposed, and mutual distances between lattice points in a plane in which the magnetic base layer and the bias magnetic-field applying layer are overlapped, are constituted so as to substantially match each other.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够将矫顽力Hc保持在高电平的偏磁场施加层的面内方向上的薄膜磁头，即使当施加有效偏置磁场时进一步意图形成较窄的间隙和较窄的轨迹，并且可以抑制产生巴克豪森噪声。
解决方案：该薄膜磁头设置有具有磁阻效应膜的磁阻效应元件。磁阻效应膜是具有非磁性层，形成在非磁性层的一个表面上的铁磁性层，形成在非磁性层的另一个表面上的软磁性层的多层，形成的钉扎层与铁磁层的一个表面（与非磁性层接触的表面的相反表面）接触，以便固定铁磁层的磁化方向。至少在磁阻效应膜的软磁性层的两端，设置有用于通过磁性基层向软磁层施加垂直偏置磁场的一对偏置磁场施加层，相互磁性基层和偏磁场施加层重叠的平面中的格点之间的距离被构成为基本上彼此匹配。版权所有（C）2005，JPO＆NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式