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1. 发明公开

EP0727773A1 Magnetoresistive head 失效
标题翻译：磁阻Kopf
公开(公告)号：EP0727773A1
公开(公告)日：1996-08-21
申请号：EP96300906.3
申请日：1996-02-09
申请人： TDK Corporation
发明人： Uno, Yasufumi , Matsuzaki, Mikio
IPC分类号： G11B5/39 , G01R33/09
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3163 , G11B5/3903 , G11B5/3932 , G11B5/399 , G11B2005/3996
摘要： A magnetoresistive head has a spin valve effect element constituted by sequentially laminating at least a first thin film layer of magnetic material (23), a thin film layer of non-magnetic material (24), a second thin film layer of magnetic material (25) and a thin film layer of antiferromagnetic material (26) on a substrate (21). The first thin film layer of magnetic material (23) is formed only in a central active region corresponding to a track width (W T ) of the head.
摘要翻译：磁阻头具有自旋阀效应元件，该自旋阀效应元件通过依次层叠至少第一磁性材料薄膜层（23），非磁性材料（24）的薄膜层，第二磁性材料薄膜层（25））和在基板（21）上的反铁磁材料（26）的薄膜层。磁性材料（23）的第一薄膜层仅形成在对应于磁头的磁道宽度（WT）的中心有效区域中。

2. 发明公开

EP0881627A3 Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：EP0881627A3
公开(公告)日：1999-09-22
申请号：EP98302930.7
申请日：1998-04-16
申请人： TDK Corporation
发明人： Terunuma, Koichi , Mino, Tetsuya , Uno, Yasufumi , Matsukuma, Koji
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3116 , G11B5/3146
摘要： A first pole tip (212) at a write element (2) is provided projecting above a first yoke (211). a second pole tip (222) is adhered onto a gap film (23) that is adhered onto the first pole tip (212). The front end portion of a second yoke (221) is laminated on the second pole tip (222). At least either the first pole tip (212) or the second pole tip (222) is constituted of a material having a higher saturation magnetic flux density than that of permalloy. At least either the first yoke (211) or the second yoke (221) is constituted of a material having a higher resistivity than that of permalloy.
摘要翻译：写入元件（2）处的第一极尖（212）设置在第一磁轭（211）的上方。第二极尖（222）粘附到粘附到第一极尖（212）上的间隙膜（23）上。第二磁轭（221）的前端部分层叠在第二磁极尖端（222）上。第一极尖（212）或第二极尖（222）中的至少一个由具有比坡莫合金更高的饱和磁通量密度的材料构成。第一磁轭（211）或第二磁轭（221）中的至少一个由具有比坡莫合金高的电阻率的材料构成。

3. 发明公开

EP0881627A2 Thin film magnetic head 失效
标题翻译： Dünnfilmmagnetkopf
公开(公告)号：EP0881627A2
公开(公告)日：1998-12-02
申请号：EP98302930.7
申请日：1998-04-16
申请人： TDK Corporation
发明人： Terunuma, Koichi , Mino, Tetsuya , Uno, Yasufumi , Matsukuma, Koji
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3116 , G11B5/3146
摘要： A first pole tip (212) at a write element (2) is provided projecting above a first yoke (211). a second pole tip (222) is adhered onto a gap film (23) that is adhered onto the first pole tip (212). The front end portion of a second yoke (221) is laminated on the second pole tip (222). At least either the first pole tip (212) or the second pole tip (222) is constituted of a material having a higher saturation magnetic flux density than that of permalloy. At least either the first yoke (211) or the second yoke (221) is constituted of a material having a higher resistivity than that of permalloy.
摘要翻译：设置在写入元件（2）的第一极尖（212）突出于第一磁轭（211）的上方。第二极尖（222）被粘附到粘附到第一极尖（212）上的间隙膜（23）上。第二磁轭（221）的前端部分层压在第二极尖（222）上。第一极尖（212）或第二极尖（222）中的至少任一个由具有比坡莫合金高的饱和磁通密度的材料构成。第一磁轭（211）或第二磁轭（221）中的至少任一个由比坡莫合金电阻率高的材料构成。

4. 发明公开

EP0768641A1 Manufacturing method of magnetic head apparatus with spin valve effect magnetoresistive head 失效
标题翻译： HerstellungsverfahrenfüreinMagnetkopfgerätmit magnetoresistivem Kopf mit Spinventil-Effekt
公开(公告)号：EP0768641A1
公开(公告)日：1997-04-16
申请号：EP96115884.7
申请日：1996-10-04
申请人： TDK Corporation
发明人： Uno, Yasufumi , Miyauchi, Daisuke , Matsuzaki, Mikio
IPC分类号： G11B5/39
CPC分类号： G11B5/3903 , G11B5/3932 , Y10T29/49034
摘要： A method of manufacturing a magnetic head apparatus with a magnetoresistive head utilizing the spin valve effect includes a final heat treatment step (S14) of heating the multi-layered spin valve structure (15) with application of a magnetic field in a direction perpendicular to a track width direction of the spin valve magnetoresistive head so that a thin film layer of soft ferromagnetic material (3, 5) to be pinned by a thin film layer of antiferromagnetic material (6) has a uniaxial anisotropy. This final heat treatment step (S14) is executed after all the steps (S1, S3, S5, S7, S8, S9, S11) each of which includes a heat treatment stage executed at a temperature which will vary a uniaxial anisotropy of the pinned thin film layer of soft ferromagnetic material (3,5) are completed.
摘要翻译：利用自旋阀效应制造具有磁阻头的磁头装置的方法包括：加热多层自旋阀结构（15）的最终热处理步骤（S14），其中在垂直于自旋阀磁阻头的轨道宽度方向，由反铁磁材料（6）的薄膜层固定的软铁磁材料（3,5）的薄膜层具有单轴各向异性。在所有步骤（S1，S3，S5，S7，S8，S9，S11）之后执行该最终热处理步骤（S14），其中每个步骤包括在将改变被钉扎的单轴各向异性的温度下执行的热处理阶段完成软铁磁材料薄膜层（3,5）。

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