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    • 2. 发明申请
    • MAGNETIC SENSOR AND MANUFACTURING METHOD THEREOF
    • 磁传感器及其制造方法
    • US20110068786A1
    • 2011-03-24
    • US12880599
    • 2010-09-13
    • Naoki OHTAKoichi TerunumaSatoshi MiuraMasanori SakaiHiroshi Yamazaki
    • Naoki OHTAKoichi TerunumaSatoshi MiuraMasanori SakaiHiroshi Yamazaki
    • G01R33/02B05D3/02B05D5/00
    • G01R33/093B82Y25/00G01R33/0052
    • A magnetic sensor includes: a first and a second magnetoresistive elements each including: a magnetization free layer; a nonmagnetic spacing layer; a magnetization pinned layer having one or more first layers of a first group of ferromagnetic layers and one or more second layers of a second group of ferromagnetic layers, in which the first layer and the second layer are stacked alternately with a nonmagnetic coupling layer in between, and so antiferromagnetically coupled to each other as to have opposite magnetizations to each other; and an antiferromagnetic layer pinning magnetization orientation in the one or more first and the second layers. The first layers in the first magnetoresistive element are one more in number than that of the one or more second layers. The number of the one or more first layers and that of the one or more second layers in the second magnetoresistive element are equal.
    • 磁传感器包括:第一和第二磁阻元件,每个包括:无磁化层; 非磁性间隔层; 磁化固定层,其具有第一组铁磁层组的一个或多个第一层和第二组铁磁层组的一个或多个第二层,其中第一层和第二层与其间的非磁性耦合层交替堆叠 并且因此彼此反铁磁耦合以具有彼此相反的磁化; 以及在一个或多个第一和第二层中钉扎磁化取向的反铁磁层。 第一磁阻元件中的第一层数量多于一个或多个第二层的数量。 一个或多个第一层的数量以及第二磁阻元件中的一个或多个第二层的数量相等。
    • 4. 发明授权
    • Magnetic head apparatus including separation features
    • 磁头设备包括分离特征
    • US5812349A
    • 1998-09-22
    • US797626
    • 1997-02-07
    • Jun ShoujiMasanori SakaiKazumasa Fukuda
    • Jun ShoujiMasanori SakaiKazumasa Fukuda
    • G11B5/39G11B5/17G11B5/40G11B5/48G11B5/56G11B5/60H05K1/02H05K1/11G11B5/127
    • G11B5/4853G11B5/40G11B5/48G11B5/39H05K1/0254H05K1/117
    • The present invention is directed to prevention of breakdown caused by electrostatic discharge in an MR element. An MR element constitutes a read element. A head support device 2 supports a magnetic head 1. A lead wire 3 is constituted with at least a pair of lead wires 31 and 32 and each of the pair of lead wires 31 and 32 is connected to the read element at one end. A terminal board 5 is provided with at least one pair of terminal conductors 52 and 53 on top of a hard substrate 51. The pair of terminal conductors 52 and 53 are provided with connecting areas 54 and 55 respectively on the same side, to which one end of which are connected the other ends of the lead wires 31 and 32 respectively. The pair of terminal conductors 52 and 53 are electrically shorted from each other by a shorting portion 56 at a rearward position which is away from the connecting areas 54 and 55 over a distance. The substrate 51 is provided with grooves or perforations 57 which facilitate the cutting operation between the shorting portion 56 and the connecting areas 54 and 55.
    • 本发明涉及防止由MR元件中的静电放电引起的击穿。 MR元件构成读取元件。 头支撑装置2支撑磁头1.引线3由至少一对引线31和32构成,并且一对引线31和32中的每一个在一端连接到读取元件。 端子板5在硬质基板51的上面设置有至少一对端子导体52和53.一对端子导体52和53分别在同一侧设置有连接区域54和55,其中一个 其端部分别连接到引线31和32的另一端。 一对端子导体52和53通过远离连接区域54和55的后方位置处的短路部分56彼此电短路。 基板51设置有槽或穿孔57,其有利于短路部分56和连接区域54和55之间的切割操作。