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    • 4. 发明公开
    • Method of manufacturing a thin-film magnetic head, and magnetic head manufactured by means of said method
    • 通过该方法和磁头的装置制造的薄膜磁头的制造方法。
    • EP0658881A1
    • 1995-06-21
    • EP94203564.3
    • 1994-12-08
    • PHILIPS ELECTRONICS N.V.
    • Postma, Lambertusvan Straalen, Arie JohanSomers, Gerardus Henricus Johannes
    • G11B5/33G11B5/39
    • G11B5/3922G11B5/1272G11B5/3163G11B5/332G11B5/3967Y10T29/49037Y10T29/49039
    • 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).
    • 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)。
    • 5. 发明公开
    • Method of manufacturing floating type magnetic head
    • 浮动型磁头制造方法
    • EP0473092A3
    • 1992-04-01
    • EP91114263.6
    • 1991-08-26
    • SANYO ELECTRIC CO., LTD.
    • Ogawa, TakahiroInoue, AtsushiKoga, KazuhikoIto, KiyotakaUeta, Yutaka
    • G11B5/127G11B5/187
    • G11B5/1871G11B5/105G11B5/1272Y10T29/49039Y10T29/49043Y10T29/49057
    • A floating type composite magnetic head includes a head core (39) fixed to a slider (19) formed of nonmagnetic material. In the head core (39), a pair of magnetic core halves are abutted against each other with nonmagnetic material such as SiO₂ or the like interposed therebetween. The first and second magnetic core half members (22a and 22b) have first and second gap forming surfaces to be abutted against each other to define a magnetic gap (g), respectively. A first groove (23, 24) is formed on the second gap forming surface. A glass layer (25) is formed in the first groove (23, 24). A first thin film (30a) including a ferromagnetic metal thin film (27) is selectively formed on the first gap forming surface. A second thin film (30b) including a ferromagnetic metal thin film (32) is selectively formed on the second gap forming surface so that at least a portion except the surface of the glass layer (25) in the second gap forming surface is exposed. A second groove (35) is formed on the exposed second gap forming surface adjacent to the first groove (23, 24). The first and second magnetic core half members (22a and 22b) are abutted and bonded with glass so that the first and second gap forming surfaces face each other so that the first and second thin films (30a and 30b) are abutted with SiO₂ or the like interposed therebetween to define a magnetic gap (g). Causes of occurrence and an increase of false gaps are suppressed and a decrease in manufacturing yield due to separation of thin films or the like can be prevented.
    • 9. 发明公开
    • Thin-film magnetic head
    • 薄膜磁头
    • EP0521564A2
    • 1993-01-07
    • EP92201928.6
    • 1992-06-29
    • Philips Electronics N.V.
    • Ruigrok, Jacobus Josephus MariaPronk, Franciscus Antonius
    • G11B5/31G11B5/39
    • G11B5/3925G11B5/31G11B5/3967Y10T29/49039
    • Thin-film magnetic head comprising a substrate (2), an inductive element (23) and a magnetoresistive element (7) and three substantially parallel extending magnetically conducting flux guides (3, 4, 5) for magnetic cooperation with said elements. A non-magnetic read gap (17) adjacent to a head face (1) extends between a first flux guide (3) and a second flux guide (4) and a non-magnetic write gap (27) adjacent to the head face extends between the second flux guide and a third flux guide (5). Viewed from the substrate, the gaps are situated one behind the other. The second flux guide extending between the first flux guide and the third flux guide is built up layer by layer and comprises two soft-magnetic layers (4A, 4B) and an insulation layer (4C) of a non-magnetic material extending substantially parallel to the substrate and being situated between the soft-magnetic layers. The soft-magnetic layers are interconnected in a magnetically conducting manner proximate to the head face.
    • 包括基片(2),电感元件(23)和磁阻元件(7)以及三个基本上平行延伸的磁导磁通导向器(3,4,5)的薄膜磁头,用于与所述元件磁性配合。 邻近头部表面(1)的非磁性读取间隙(17)在第一通量导向件(3)和第二通量导向件(4)之间延伸,邻近头部表面的非磁性写入间隙(27)延伸 在第二通量引导件和第三通量引导件(5)之间。 从衬底上看,间隙一个接一个地位于后面。 在第一通量引导件和第三通量引导件之间延伸的第二通量引导件逐层地构建并且包括两个软磁层(4A,4B)和非磁性材料的绝缘层(4C),所述非磁性材料基本平行于 衬底并位于软磁层之间。 软磁层在磁头表面附近以导磁方式相互连接。