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    • 19. 发明申请
    • 酸化物高温超伝導体およびその作製方法
    • 氧化物高温超导体及其生产方法
    • WO2003023094A1
    • 2003-03-20
    • PCT/JP2002/009049
    • 2002-09-05
    • 伊原 良子伊原 英世伊原 英宇伊原 玄英伊原 智哲アシナラヤナン スンダレサン
    • アシナラヤナン スンダレサン
    • C30B29/22
    • H01L39/2461C30B23/02C30B29/22C30B29/225H01L39/2458Y10S505/782Y10S505/783
    • An oxide high-temperature superconductor in which an oxide high-temperature superconductive thin film high in crystal perfection and excellent in crystal orientation is formed on a crystal substrate of low dielectric constant and its production method are disclosed. When an oxide high-temperature superconductor in which an oxide high-temperature superconductive thin film containing Ba as a constituent element is formed on a sapphire R-face 1, -1, 0, 2 substrate is produced, a first buffer layer made of CeO3 for relaxing the lattice mismatching between the sapphire R-face 1, -1, 0, 2 substrate and the oxide high-temperature superconductive thin film is formed on the the sapphire R-face 1, -1, 0, 2 substrate, a second buffer layer in which Ba of the oxide high-temperature superconductor is replaced with Sr is formed on the first buffer layer, and an oxide high-temperature superconductive thin film is epitaxially grown on the second buffer layer. Even if the material of the firt buffer layer for relaxing the lattice mismatching of the oxide high-temperature superconductive thin film tends to cause an interface reaction with Ba in the oxide high-temperature superconductive thin film, the second buffer layer prevents the interface reaction, thereby epitaxially growing an oxide high-temperature superconductive thin film excellent in crystal perfection and crystal orientation.
    • 公开了一种氧化物高温超导体,其中在低介电常数的晶体基板上形成晶体完整且晶体取向优异的氧化物高温超导薄膜及其制造方法。 当在蓝宝石R面1,...,0,2衬底上形成含有Ba作为构成元素的氧化物高温超导薄膜的氧化物高温超导体时,由CeO 3制成的第一缓冲层 为了缓和在蓝宝石R面1,...,0,2衬底上形成蓝宝石R面1,...,2,2衬底和氧化物高温超导薄膜之间的晶格不匹配,第二个 在第一缓冲层上形成氧化物高温超导体的Ba替代为Sr的缓冲层,在第二缓冲层上外延生长氧化物高温超导薄膜。 即使用于缓和氧化物高温超导薄膜的晶格失配的缓冲层的材料也容易在氧化物高温超导薄膜中引起与Ba的界面反应,所以第二缓冲层防止界面反应, 从而外延生长晶体完整性和晶体取向优异的氧化物高温超导薄膜。
    • 20. 发明申请
    • SUPERCONDUCTING DEVICE
    • 超级设备
    • WO00016413A1
    • 2000-03-23
    • PCT/AU1999/000773
    • 1999-09-14
    • H01L39/24H01L39/02H01L39/06
    • H01L39/2496H01L39/2458
    • An operative high critical temperature superconducting (HTSC) device (20) and method therefor are provided. The HTSC device (20) includes a niobium inhibitor (24) deposited over selected regions (23) of the surface of a substrate (21). A superconducting material (25) is deposited over substantially the entire surface of the substrate (21). The superconducting material (25) possesses a high resistivity in the selected regions (23) and exhibits superconducting characteristics only in regions (22) in which the niobium inhibitor (24) has not been deposited. In accordance with the method of the present invention, the formation of the (HTSC) device includes the step of providing an atmosphere of argon and oxygen and subjecting the device to RF plasma sputtering at controlled temperature and pressure.
    • 提供了一种操作性高临界温度超导(HTSC)器件(20)及其方法。 HTSC器件(20)包括沉积在衬底(21)的表面的选定区域(23)上的铌抑制剂(24)。 超导材料(25)沉积在基底(21)的基本整个表面上。 超导材料(25)在所选择的区域(23)中具有高电阻率,并且仅在没有沉积铌抑制剂(24)的区域(22)中显示出超导特性。 根据本发明的方法,(HTSC)器件的形成包括提供氩气和氧气的步骤,并在受控的温度和压力下对器件进行RF等离子体溅射。