DIELECTRIC FILM WITH METALLIC OXYNITRIDE
    73.
    发明申请
    DIELECTRIC FILM WITH METALLIC OXYNITRIDE 有权
    具有金属氧化物的电介质膜

    公开(公告)号:US20110064642A1

    公开(公告)日:2011-03-17

    申请号:US12953106

    申请日:2010-11-23

    Abstract: The present invention provides a method of manufacturing a dielectric film having a high permittivity. An embodiment of the present invention is a method of manufacturing, on a substrate, a dielectric film including a metallic oxynitride containing an element A made of Hf or a mixture of Hf and Zr, an element B made of Al, and N and O. The manufacturing method includes: a step of forming a metallic oxynitride whose mole fractions of the element A, the element B, and N expressed as B/(A+B+N) has a range of 0.015≦(B/(A+B+N))≦0.095 and N/(A+B+N) has a range of 0.045≦(N/(A+B+N)) and a mole fraction O/A of the element A and O has a range expressed as 1.0

    Abstract translation: 本发明提供具有高介电常数的电介质膜的制造方法。 本发明的一个实施方式是在基板上制造包含含有由Hf或Hf和Zr的混合物构成的元素A的金属氮氧化物的电介质膜,由Al构成的元素B和N和O. 该制造方法包括:形成表示为B /(A + B + N)的元素A,元素B和N的摩尔分数的金属氮氧化物的范围为0.015&lt; 1EE的工序;(B /(A + B + N))&nlE; 0.095和N /(A + B + N)的范围为0.045&nlE;(N /(A + B + N)),元素A和O的摩尔分数O / 表示为1.0 <(O / A)<2.0的范围,具有非结晶结构; 以及在具有非结晶结构的金属氮氧化物上在700℃以上进行退火处理以形成具有80%以上立方晶结合比例的结晶相的金属氧氮化物的工序。

    Bismuth ferrite films and devices grown on silicon
    78.
    发明授权
    Bismuth ferrite films and devices grown on silicon 失效
    铋铁氧体薄膜和在硅上生长的器件

    公开(公告)号:US07696549B2

    公开(公告)日:2010-04-13

    申请号:US11297015

    申请日:2005-12-08

    Abstract: A functional perovskite cell formed on a silicon substrate layer and including a functional layer of bismuth ferrite (BiFeO3 or BFO) sandwiched between two electrode layers. An optional intermediate template layer, for example, of strontium titanate allows the bismuth ferrite layer to be crystallographically aligned with the silicon substrate layer. Other barrier layers of platinum or an intermetallic alloy produce a polycrystalline BFO layer. The cell may be configured as a non-volatile memory cell or a MEMS structure respectively depending upon the ferroelectric and piezoelectric character of BFO. Lanthanum substitution in the BFO increases ferroelectric performance. The films may be grown by MOCVD using a heated vaporizer.

    Abstract translation: 一种功能性钙钛矿电池,其形成在硅衬底层上,并且包括夹在两个电极层之间的铋铁氧体(BiFeO 3或BFO)的功能层。 可选的中间模板层例如钛酸锶允许铋铁氧体层与硅衬底层晶体学对准。 铂或金属间化合物的其它阻挡层产生多晶BFO层。 可以根据BFO的铁电和压电特性分别将单元配置为非易失性存储单元或MEMS结构。 BFO中的镧取代增加了铁电性能。 可以使用加热蒸发器通过MOCVD生长膜。

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