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2. 发明公开

EP0637014A2 Magnetic head 失效
标题翻译： Magnetkopf。
公开(公告)号：EP0637014A2
公开(公告)日：1995-02-01
申请号：EP94111671.7
申请日：1994-07-26
申请人： SONY CORPORATION
发明人： Honda, Junichi , Kumagai, Seiji , Fujisawa, Norikatsu , Hayakawa, Masatoshi , Kikkawa, Masahiro , Suzuki, Miho
IPC分类号： G11B5/235
CPC分类号： G11B5/235 , G11B5/193
摘要： A magnetic head is disclosed, including a pair of magnetic core substrates (1,2) formed of an oxide magnetic material, at least one of the magnetic core substrates having a gap film (3,4) formed on an abutment surface thereof, the pair of magnetic core substrates being abutted to each other on the gap film (3,4) as abutment surfaces, having a magnetic gap formed between them. The gap film (3,4) is formed of platinum, the platinum group, or an alloy consisting mainly of platinum or the platinum group. The pair of magnetic core substrates (1,2) are bonded to each other to be integrated into one unit by a non-magnetic glass (7). The magnetic gap has a track T w width of not greater than 50 µm. The gap film has a thickness of not greater than 150 nm. A gap film selectively formed of Cr or an alloy consisting mainly of Cr, Ti or an alloy consisting mainly of Ti, or Ta 2 O 5 or an oxide consisting mainly of Ta 2 O 5 is also disclosed. At least one of the pair of magnetic core substrates has its abutment surface inversely sputtered and then has a gap film formed thereon.
摘要翻译：公开了一种磁头，包括由氧化物磁性材料形成的一对磁芯基板，至少一个磁芯基板在其邻接表面上形成间隙膜，该对磁芯基板彼此抵靠在间隙膜上作为邻接表面，在它们之间形成有磁隙。间隙膜由铂，铂族基团或主要由铂或铂族组成的合金形成。一对磁芯基板通过非磁性玻璃彼此结合成一个单元。磁隙具有不大于50μm的轨道宽度。间隙膜的厚度不大于150nm。磁头包括由氧化物磁性材料形成的一对磁芯基板，至少一个磁芯基板在其邻接表面上形成有间隙膜，该一对磁芯基板在间隙上彼此抵接膜作为邻接表面，在它们之间形成有磁隙。间隙膜由Cr或主要由Cr，Ti或主要由Ti或Ta2O5组成的合金或主要由Ta 2 O 5组成的氧化物组成的合金选择性地形成。所述一对磁芯基板中的至少一个具有抵靠面反向溅射，然后在其上形成间隙膜。

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