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1. 发明公开

EP1482319A2 Thin film magnetic sensor and method of manufacturing the same 审中-公开
标题翻译：薄膜磁传感器及其制造方法
公开(公告)号：EP1482319A2
公开(公告)日：2004-12-01
申请号：EP04012425.7
申请日：2004-05-26
申请人： The Foundation: The Research Institute for Electric and Magnetic Materials , Daido Steel Co., Ltd.
发明人： Kobayashi, Nobukiyo , Shirakawa, Kiwamu , Yasushi, Kaneta c/o Daido Steel Co.Ltd R & D lab.
IPC分类号： G01R33/09
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3183 , G11B5/3903 , G11B5/3922 , Y10T29/49002
摘要： A thin film magnetic sensor (20) comprises a pair of first thin film yoke (24b) and second thin film yoke (24c) each formed of a soft magnetic material, the first and second thin film yokes being positioned to face each other with a gap (24a) interposed therebetween; a GMR film (26) having an electrical resistivity higher than that of the soft magnetic material and formed in the gap so as to be electrically connected to the first thin film yoke and the second thin film yoke; and an insulating substrate (22) made of an insulating nonmagnetic material and serving to support the first thin film yoke, the second thin film yoke and the GMR film. The GMR film is formed on a facing surface of the first thin film yoke positioned to face the second thin film yoke, and the length of the gap is defined by the thickness of the GMR film positioned on the facing surface of the first thin film yoke.
摘要翻译：一种薄膜磁传感器（20）包括一对第一薄膜磁轭（24b）和第二薄膜磁轭（24c），每个第一薄膜磁轭（24b）和第二薄膜磁轭（24c）均由软磁材料形成，第一和第二薄膜磁轭定位成彼此面对夹在它们之间的间隙（24a） GMR膜（26），其具有比软磁性材料的电阻率高的电阻率，并形成在间隙中以便电连接到第一薄膜轭和第二薄膜轭; 以及由绝缘非磁性材料制成并用于支撑第一薄膜轭，第二薄膜轭和GMR膜的绝缘基板（22）。 GMR膜形成在第一薄膜轭的面对第二薄膜轭的表面上，并且间隙的长度由位于第一薄膜轭的相对表面上的GMR膜的厚度限定。

2. 发明授权

EP0658881B1 Method of manufacturing a thin-film magnetic head, and magnetic head manufactured by means of said method 失效转让
标题翻译：通过该方法和磁头的装置制造的薄膜磁头的制造方法
公开(公告)号：EP0658881B1
公开(公告)日：1999-09-15
申请号：EP94203564.3
申请日：1994-12-08
申请人： Koninklijke Philips Electronics N.V. , OnStream, Inc.
发明人： Postma, Lambertus , van Straalen, Arie Johan , Somers, Gerardus Henricus Johannes
IPC分类号： G11B5/33 , G11B5/39
CPC分类号： G11B5/3922 , G11B5/1272 , G11B5/3163 , G11B5/332 , G11B5/3967 , Y10T29/49037 , Y10T29/49039

3. 发明公开

EP0780833A3 Improved magnetic recording system having a saturable layer and detection using MR element 失效
标题翻译： Verbessertes Magnetaufzeichnungssystem mitsättigbarerSchichte und gebrauchmachend von MR-Elementen
公开(公告)号：EP0780833A3
公开(公告)日：1999-01-07
申请号：EP96119146.7
申请日：1996-11-29
申请人： AMPEX CORPORATION
发明人： Gooch, Beverley R. , Coughlin, Thomas M. , Davies, David H.
IPC分类号： G11B5/00 , G11B5/74 , G11B5/39
CPC分类号： G11B5/3919 , G11B5/00 , G11B5/012 , G11B5/03 , G11B5/1878 , G11B5/39 , G11B5/3903 , G11B5/3922 , G11B5/488 , G11B19/02 , G11B2005/0034
摘要： A magnetic storage system is disclosed that includes a magnetic storage layer (112) associated with a soft magnetic saturable keeper layer (114). A transducer (118) is spaced from the storage layer and the keeper layer in flying relationship thereto, with an MR element (124) contained therein to provide high sensitivity detection along with the reduced spacing loss available from the keepered storage layer.
摘要翻译：公开了一种磁存储系统，其包括与软磁可饱和保持器层（114）相关联的磁存储层（112）。传感器（118）与存储层和保持层间隔开，其中包含MR元件（124），以提供高灵敏度检测以及从保持存储层可用的减小的间隔损失。

4. 发明授权

EP0935799B1 SINGLE-CHANNEL MAGNETIC HEAD WITH MAGNETORESISTIVE ELEMENT 失效
标题翻译：单通道磁头的磁阻元件
公开(公告)号：EP0935799B1
公开(公告)日：2003-06-11
申请号：EP98900330.6
申请日：1998-01-22
申请人： Koninklijke Philips Electronics N.V.
发明人： RUIGROK, Jacobus, Josephus, Maria
IPC分类号： G11B5/39
CPC分类号： G11B5/00813 , B82Y10/00 , B82Y25/00 , G11B5/3903 , G11B5/3922 , G11B5/3967 , G11B25/063 , G11B2005/3996
摘要： Single-channel magnetic head having a head face (1) which extends in a first direction (I) in which a magnetic record carrier (3) is relatively movable with respect to the magnetic head, and in a second direction (II) transverse to the first direction. The magnetic head has a structure of layers which, viewed in the first direction, are situated one on top of the other and extend substantially in the second direction and a third direction (III) transvese to the first and the second direction. The structure is provided with a magnetoresistive measuring element (5), a first magnetic element (7) and a second magnetic element (9). Both magnetic elements are electrically conducting, while the measuring element is arranged electrically in series between the two magnetic elements for passing a measuring current (i) through the measuring element substantially in the third direction. Each magnetic element has an electric contact face (7a, 9a). To obtain a stable single-channel magnetic head having a narrow, well-defined scanning width, at least one magnetic element extending as far as the head face has an extensiveness which is larger in the second direction than in the third direction. This extensiveness in the second direction is also larger than the effective width (w) of the measuring element. In the third direction, the relevant magnetic element has a larger relative magnetic permeability (νrIII) than in the second direction.

5. 发明授权

EP0892390B1 A head with partial reading means for a disk storage device 失效
标题翻译：头与局部读取装置，用于一磁盘存储
公开(公告)号：EP0892390B1
公开(公告)日：2002-11-13
申请号：EP97830369.1
申请日：1997-07-18
申请人： STMicroelectronics S.r.l.
发明人： Murari, Bruno , Vigna, Benedetto , Ferrari, Paolo
IPC分类号： G11B5/265 , G11B5/31 , G11B5/33 , G11B5/39 , G11B5/55 , G11B5/48 , G11B5/596
CPC分类号： G11B5/3922 , G11B5/2654 , G11B5/3103 , G11B5/3183 , G11B5/3948 , G11B5/3958 , G11B5/4886 , G11B5/5526 , G11B5/553

6. 发明公开

EP0794581A1 MAGNETIC TRANSDUCER 失效
标题翻译： MAGNETISCHER UMWANDLER
公开(公告)号：EP0794581A1
公开(公告)日：1997-09-10
申请号：EP96931257.8
申请日：1996-09-19
申请人： TDK Corporation
发明人： ARAKI, Satoru, TDK Corporation , SATO, Yuichi, TDK Corporation , SHINOURA, Osamu, TDK Corporation
IPC分类号： H01L43/08 , H01F10/30 , H01F41/18 , G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/39 , G11B5/3903 , G11B5/3919 , G11B5/3922 , G11B5/3925 , G11B5/3932 , G11B5/399 , G11B2005/3996 , H01F10/3268 , H01L43/08 , H01L43/10
摘要： According to the present invention on a magnetoresistance device having a magnetoresistance effect element, since iron oxide FeO x exhibiting antiferromagnetism is used as a pinning layer, a spin-valve type magnetoresistance effect element can be obtained which is particularly excellent in corrosion resistance and has a magnetoresistance ratio with an MR slope no less than 0.7%/Oe in the region of the high-frequency magnetic field of 1MHz. Further, the rise-up characteristic of an MR curve at the zero magnetic field is extremely excellent with small hysteresis, and it has high heat resistance. The heat resistance is further improved by interposing an oxygen blocking layer between the pinning layer and a ferromagnetic layer. In the magnetoresistance device, for example, an MR head, using the magnetoresistance effect element having a magnetic multilayer film, an output voltage is approximately five times as high as that of the conventional material. Accordingly, there can be provided an excellent MR head which has extremely high reliability and enables the reading for ultrahigh density magnetic recording exceeding 1Gbit/inch 2 .
摘要翻译：根据本发明，关于具有磁阻效应元件的磁阻器件，由于使用具有反铁磁性的氧化铁FeOx作为钉扎层，因此可获得耐腐蚀性特别优异的自旋阀型磁电阻效应元件，并具有磁阻在1MHz的高频磁场的区域中，MR斜率不小于0.7％/ Oe。此外，零磁场下的MR曲线的上升特性非常优异，滞后小，耐热性高。通过在钉扎层和铁磁层之间插入氧阻挡层来进一步提高耐热性。在磁电阻器件中，例如，使用具有磁性多层膜的磁阻效应元件的MR磁头，输出电压大约是常规材料的5倍。因此，可以提供具有极高可靠性的极好的MR磁头，并且能够读取超过1Gbit / inch 2的超高密度磁记录。

7. 发明公开

EP0658881A1 Method of manufacturing a thin-film magnetic head, and magnetic head manufactured by means of said method 失效转让
标题翻译：通过该方法和磁头的装置制造的薄膜磁头的制造方法。
公开(公告)号：EP0658881A1
公开(公告)日：1995-06-21
申请号：EP94203564.3
申请日：1994-12-08
申请人： PHILIPS ELECTRONICS N.V.
发明人： Postma, Lambertus , van Straalen, Arie Johan , Somers, Gerardus Henricus Johannes
IPC分类号： G11B5/33 , G11B5/39
CPC分类号： G11B5/3922 , G11B5/1272 , G11B5/3163 , G11B5/332 , G11B5/3967 , Y10T29/49037 , Y10T29/49039
摘要： Method of manufacturing a thin-film magnetic head provided with a transducing element (23) and at least one flux-guiding element (17a, 17b). An electrically conducting layer (8) of a non-magnetic material and a second electrically insulating layer (9) of a non-magnetic material are successively formed on a first electrically insulating layer (5) of a non-magnetic material. The second electrically insulating layer is subsequently provided with at least an interruption exposing a portion of the electrically conducting layer. Subsequently, the flux-guiding element is formed by electrodepositing a soft-magnetic material on said portion until the interruption is filled, whereby the flux-guiding element and the second electrically insulating layer constitute an at least substantially plane surface on which an electrically insulating spacer layer (21) is formed. Subsequently, the transducing element is provided on the spacer layer. The magnetic head thus formed has a non-magnetic transducing gap (35) terminating in a head face (33) and being constituted by the first electrically insulating layer (5) and the electrically conducting layer (8).
摘要翻译：制造设置有换能元件（23）和至少一个磁通引导元件的薄膜磁头的方法（17A，17B）。一个非磁性材料的导电层（8）和非磁性体构成的第二电绝缘层（9）连续地形成的非磁性材料制成的第一电绝缘层（5）上。第二电绝缘层随后设置有至少在中断暴露导电层的一部分。随后，磁通引导元件由直到中断被填充，由此使焊剂引导元件和所述第二电绝缘层构成的至少基本平坦的表面上电沉积在所述部分上的软磁材料形成在电绝缘衬垫层（21）形成。随后，将换能元件被设置在间隔层上。磁头由此形成具有非磁性换能间隙（35）终止于磁头端面（33）和由所述第一电绝缘层（5）和所述电被构成导电层（8）。

8. 发明授权

EP0654782B1 Magnetic head having a head face and a thin-film structure, and method of manufacturing the magnetic head 失效
标题翻译：具有磁头面和一个薄膜结构和磁头制造方法磁头
公开(公告)号：EP0654782B1
公开(公告)日：1999-07-07
申请号：EP94203349.9
申请日：1994-11-17
申请人： Koninklijke Philips Electronics N.V.
发明人： Van der Zaag, Pieter Jan , Ruigrok, Jacobus Josephus Maria , van Kampen, Harald
IPC分类号： G11B5/39
CPC分类号： G11B5/3922

9. 发明授权

EP0535737B1 Arrangement for reproducing a digital signal from a track on a magnetic record carrier using a read head with a MR element 失效
标题翻译：对于使用具有MR元件的写入头在记录介质上从轨道重放数字信号的装置
公开(公告)号：EP0535737B1
公开(公告)日：1997-06-18
申请号：EP92202945.9
申请日：1992-09-25
申请人： Philips Electronics N.V.
发明人： Bombeeck, John Maria, c/o INT. OCTROOIBUREAU B.V.
IPC分类号： G11B5/09 , G11B20/10
CPC分类号： G11B20/10046 , G11B5/09 , G11B5/3903 , G11B5/3922 , G11B20/10009

10. 发明公开

EP0654782A2 Magnetic head having a head face and a thin-film structure, and method of manufacturing the magnetic head 失效
标题翻译： Magnetkopf mit einer Kopfseite und einerDünnfilmstrukturund Magnetkopfherstellungsverfahren。
公开(公告)号：EP0654782A2
公开(公告)日：1995-05-24
申请号：EP94203349.9
申请日：1994-11-17
申请人： PHILIPS ELECTRONICS N.V.
发明人： Van der Zaag, Pieter Jan , Ruigrok, Jacobus Josephus Maria , van Kampen, Harald
IPC分类号： G11B5/39
CPC分类号： G11B5/3922
摘要： Magnetic head having a head face (33) and a thin-film structure with a magnetoresistive element (23) and a flux-guiding element (117a, 117b) of a material having a relatively high magnetic permeability. A peripheral area of the magnetoresistive element extends opposite the flux-guiding element, while an electrically insulating, magnetically permeable intermediate layer (21) having a relative magnetic permeability of between 1.1 and 25 is present between the peripheral area and the flux-guiding element.
摘要翻译：具有头表面（33）的磁头和具有磁阻元件（23）的薄膜结构和具有较高磁导率的材料的磁通引导元件（117a，117b）。磁阻元件的周边区域（123a）与导磁元件相对延伸，而具有介于1.1和25之间的相对磁导率介于1.1和25之间的电绝缘的导磁中间层（21,121）存在于外围区域和焊剂 - 引导元素

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