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    • 10. 发明授权
    • Phase change memory cell structures and methods
    • 相变存储单元结构和方法
    • US08097537B2
    • 2012-01-17
    • US12787070
    • 2010-05-25
    • Timothy A. QuickEugene P. MarshJoseph N. Greeley
    • Timothy A. QuickEugene P. MarshJoseph N. Greeley
    • H01L21/44
    • H01L45/1683H01L27/2436H01L45/06H01L45/1233H01L45/1293H01L45/144
    • Phase change memory cell structures and methods are described herein. A number of methods of forming a phase change memory cell structure include forming a dielectric stack structure on a first electrode, wherein forming the dielectric stack structure includes creating a second region between a first region and a third region of the dielectric stack structure, the second region having a thermal conductivity different than a thermal conductivity of the first region and different than a thermal conductivity of the third region of the dielectric stack. One or more embodiments include forming a via through the first, second, and third regions of the dielectric stack structure, depositing a phase change material in the via, and forming a second electrode on the phase change material.
    • 本文描述了相变存储器单元结构和方法。 形成相变存储单元结构的多种方法包括在第一电极上形成电介质堆叠结构,其中形成电介质叠层结构包括在电介质叠层结构的第一区和第三区之间形成第二区,第二 区域,其热导率不同于第一区域的热导率,并且不同于介电叠层的第三区域的热导率。 一个或多个实施例包括通过介电堆叠结构的第一,第二和第三区域形成通孔,在通孔中沉积相变材料,以及在相变材料上形成第二电极。