Thin film magnetic head with a center tap
    2.
    发明授权
    Thin film magnetic head with a center tap 失效
    薄膜磁头与中心水龙头

    公开(公告)号:US4044394A

    公开(公告)日:1977-08-23

    申请号:US673523

    申请日:1976-04-05

    CPC分类号: G11B5/313 G11B5/3163

    摘要: A narrow track width magnetic head can be formed using an integrated circuit formation techniques such as evaporation plating, chemical etching, etc. But, there has been such a problem that it is difficult to provide a center tap in a conventional thin film magnetic head structure including coils of four or more turns. A magnetic head according to the present invention comprising a coil divided into two sections by the center tap, the electrostatic capacitance of each section being substantially the same. The coil may be formed into a precise pattern with ease by photoetching technique. A plurality of sets of conductive films insulated from one another are provided crossing a magnetic core, each set consisting of two conductive films of the same pattern. The alternating layers of the conductive films are connected on the backward of a magnetic gap to provide the two sections of the coil. A center tap is derived from a connection portion of the two sections of the coil and a coil terminal is provided at each of the opposite free ends of the coil. Thus, the thin film magnetic head having a multi-turn coil with a center tap is provided.

    摘要翻译: 可以使用诸如蒸发镀,化学蚀刻等的集成电路形成技术来形成窄轨道宽度的磁头。但是,存在这样的问题,即难以在传统的薄膜磁头结构中提供中心抽头 包括四圈或更多匝的线圈。 根据本发明的磁头包括通过中心抽头分成两部分的线圈,每个部分的静电电容基本上相同。 线圈可以通过光刻技术容易地形成精确的图案。 跨越磁芯设置多个彼此绝缘的导电膜组,每组由相同图案的两个导电膜组成。 导电膜的交替层在磁隙的后方连接以提供线圈的两个部分。 中心抽头来自线圈的两个部分的连接部分,线圈端子设置在线圈的相对的自由端中的每一个处。 因此,提供具有中心抽头的多匝线圈的薄膜磁头。

    Method for preparing thin film integrated circuit
    3.
    发明授权
    Method for preparing thin film integrated circuit 失效
    制备薄膜集成电路的方法

    公开(公告)号:US4003772A

    公开(公告)日:1977-01-18

    申请号:US550366

    申请日:1975-02-18

    CPC分类号: H01L21/31687 H01L21/76888

    摘要: A thin film integrated circuit consists of a first conductor of aluminum extended in any desired direction on an insulating substrate, an anodized film formed by anodization in a chromic acid solution at positions other than cross-connectional parts on the first conductor, a second conductor cross-connected on the first conductor, and an anodized film formed by anodization in a chromic acid solution on the surface of the second conductor. The thin film integrated circuit is prepared by partially forming an anodized film in a sulfuric acid or oxalic acid solution at cross-connectional parts of a first conductor of aluminum so as not to form any anodized film in a chromic acid solution at the cross-sectional parts of the first conductor of the circuit, masking the partially formed anodized film with a photoresist film, then forming an anodized film by a chromic acid solution, and then removing the photoresist film and the anodized film. After the cross-sectional parts of the first conductor are exposed thereby, a second conductor is formed. For an etching solution for anodized film, which is anodized using the sulfuric acid or oxalic acid solution, a mixed solution consisting of 60 to 40 g/l of chromic acid and 40 to 300 g/l of oxidative acid is used.

    摘要翻译: 薄膜集成电路包括在绝缘基板上以任何所需方向延伸的铝的第一导体,通过在铬酸溶液中阳极氧化形成的阳极氧化膜,所述阳极氧化膜在第一导体上的交叉连接部分以外的位置处形成,第二导体十字 连接在第一导体上,以及通过在第二导体的表面上的铬酸溶液中阳极氧化形成的阳极氧化膜。 薄膜集成电路通过在第一铝导体的交叉连接部分部分地形成硫酸或草酸溶液中的阳极氧化膜来制备,以便不在铬酸溶液中在横截面处形成任何阳极氧化膜 电路的第一导体的部分,用光致抗蚀剂膜掩蔽部分形成的阳极氧化膜,然后通过铬酸溶液形成阳极氧化膜,然后除去光致抗蚀剂膜和阳极氧化膜。 在第一导体的横截面部分被暴露之后,形成第二导体。 对于使用硫酸或草酸溶液阳极氧化的阳极氧化膜的蚀刻溶液,使用由60〜40g / l的铬酸和40〜300g / l的氧化酸组成的混合溶液。

    Electroluminescent device
    5.
    发明授权
    Electroluminescent device 失效
    电致发光器件

    公开(公告)号:US5200277A

    公开(公告)日:1993-04-06

    申请号:US454961

    申请日:1989-12-22

    IPC分类号: C23C14/08 H05B33/10 H05B33/22

    摘要: An electroluminescent device including dielectric films each of which consists of first regions made of a material with a strong self-healing type dielectric breakdown characteristic, second regions made of a material with a strong propagating type dielectric breakdown characteristic, and mixed regions consisting of a mixture of these two materials, the first and second regions being arranged alternately in the film thickness direction with the mixed regions therebetween, the mixing ratio of these two materials in the mixed regions changing in such a manner that the ratio of one material gradually decreases from a region of this material toward the adjacent region of the other material, that is, the ratio of the other material increases. Thus, the changes in the mixing ratio of these two materials of the dielectric films in the film thickness direction are continuous and periodic. These dielectric films, with a high breakdown field strength, make it possible to obtain an electroluminescent device having a large drive voltage margin and providing a luminescence of high brightness.

    摘要翻译: 一种电致发光器件,包括电介质膜,每个电介质膜由具有强自愈型电介质击穿特性的材料制成的第一区域,由具有强传播型电介质击穿特性的材料制成的第二区域,以及由混合物组成的混合区域 在这两种材料中,第一和第二区域在膜厚度方向上交替地与它们之间的混合区域布置,这两种材料在混合区域中的混合比以这样的方式变化,使得一种材料的比例从 该材料的区域朝向另一材料的相邻区域,即另一种材料的比例增加。 因此,电介质膜在膜厚方向上的这两种材料的混合比的变化是连续的和周期性的。 具有高击穿场强度的这些电介质膜使得可以获得具有大的驱动电压余量并提供高亮度的发光的电致发光器件。

    Thermal head
    6.
    发明授权
    Thermal head 失效
    热头

    公开(公告)号:US4617575A

    公开(公告)日:1986-10-14

    申请号:US760623

    申请日:1985-07-30

    摘要: A thermal head which comprises an electrically insulating substrate, a glaze layer laid thereon, a heating resistor layer laid on the glaze layer, a plurality of first layer conductors laid on the heating resistor layer and provided at predetermined distances, a protective film laid on the heating resistor layer, and a plurality of second layer conductors counterposed to the first layer conductors and laid on the first layer conductors through an interlayer insulating film, where the interlayer insulating layer is in a two layer structure of an inorganic insulating material layer having a compressive stress and an organic insulating material layer, and the organic insulating material layer is positioned on the second layer conductor side. The thermal head as structured above is free from a problem of crack formation on the interlayer insulating layer, causing a short circuit and free from a problem of discontinuation of the second layer conductors.

    摘要翻译: 一种热敏头,包括电绝缘衬底,敷设在其上的釉层,铺在釉层上的加热电阻层,放置在加热电阻层上并以预定距离设置的多个第一层导体, 加热电阻层和与第一层导体相对的多个第二层导体,并通过层间绝缘膜放置在第一层导体上,其中层间绝缘层是具有压缩性的无机绝缘材料层的两层结构 应力和有机绝缘材料层,有机绝缘材料层位于第二层导体侧。 上述结构的热敏头没有在层间绝缘层上形成裂纹的问题,导致短路并且不会有中断第二层导体的问题。

    Magnetic semiconductor element and a magneto-optical read out head
    8.
    发明授权
    Magnetic semiconductor element and a magneto-optical read out head 失效
    磁性半导体元件和磁光读出头

    公开(公告)号:US5229621A

    公开(公告)日:1993-07-20

    申请号:US888422

    申请日:1992-05-26

    IPC分类号: H01L27/22

    摘要: A magnetic semiconductor element formed by joining a magnetostrictive material and a semiconductive material with each other, in which the lattice constant of the semiconductive material is variable by magnetostriction at the interface therebetween; or in which an interface between the two materials is formed by epitaxial growth and the orientation of the magnetostriction is identical to the orientation in which the lattice constant of the semiconductive material varies. Next, a semiconductor laser is so constructed that the interface between the magnetostrictive material and the semiconductive material is disposed in the semiconductor laser and the wavelength and the output of the semiconductor laser are variable by magnetostriction. Further, a method of making a magnetic semiconductor element comprises a step of epitaxially growing the layer of the magnetostrictive material on the layer made of the semiconductive material. Furthermore, a magneto-optical read out head is so constructed that the interface formed by joining the magnetostrictive material and the semiconductive material with each other is disposed in the semiconductor laser constituting a head reading out information recorded in a magnetic recording medium.

    摘要翻译: 通过将磁致伸缩材料和半导体材料彼此接合而形成的磁性半导体元件,其中半导体材料的晶格常数可通过它们之间的界面处的磁致伸缩而变化; 或者其中通过外延生长形成两种材料之间的界面,并且磁致伸缩的取向与半导体材料的晶格常数变化的取向相同。 接下来,半导体激光器被构造成使得磁致伸缩材料和半导体材料之间的界面设置在半导体激光器中,半导体激光器的波长和输出通过磁致伸缩而变化。 此外,制造磁性半导体元件的方法包括在由半导体材料制成的层上外延生长磁致伸缩材料层的步骤。 此外,磁光读出头被构造成使得通过将磁致伸缩材料和半导体材料彼此接合而形成的界面设置在半导体激光器中,该半导体激光器构成磁头读出记录在磁记录介质中的信息。