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    • 99. 发明授权
    • Semiconductor fin on local oxide
    • 半导体翅片局部氧化物
    • US09035430B2
    • 2015-05-19
    • US13597799
    • 2012-08-29
    • Reinaldo A. VegaMichael V. AquilinoDaniel J. Jaeger
    • Reinaldo A. VegaMichael V. AquilinoDaniel J. Jaeger
    • H01L21/02H01L21/308H01L21/32H01L21/762H01L29/66H01L29/78
    • H01L21/76281H01L21/3081H01L21/3086H01L21/32H01L21/76208H01L29/66795H01L29/785
    • A semiconductor substrate including a first epitaxial semiconductor layer is provided. The first epitaxial semiconductor layer includes a first semiconductor material, and can be formed on an underlying epitaxial substrate layer, or can be the entirety of the semiconductor substrate. A second epitaxial semiconductor layer including a second semiconductor material is epitaxially formed upon the first epitaxial semiconductor layer. Semiconductor fins including portions of the second single crystalline semiconductor material are formed by patterning the second epitaxial semiconductor layer employing the first epitaxial semiconductor layer as an etch stop layer. At least an upper portion of the first epitaxial semiconductor layer is oxidized to provide a localized oxide layer that electrically isolates the semiconductor fins. The first semiconductor material can be selected from materials more easily oxidized relative to the second semiconductor material to provide a uniform height for the semiconductor fins after formation of the localized oxide layer.
    • 提供了包括第一外延半导体层的半导体衬底。 第一外延半导体层包括第一半导体材料,并且可以形成在下面的外延衬底层上,或者可以是整个半导体衬底。 包含第二半导体材料的第二外延半导体层外延地形成在第一外延半导体层上。 包括第二单晶半导体材料的部分的半导体翅片通过使用第一外延半导体层作为蚀刻停止层的第二外延半导体层图案化而形成。 至少第一外延半导体层的上部被氧化以提供电绝缘半导体鳍片的局部氧化物层。 第一半导体材料可以从相对于第二半导体材料更容易氧化的材料中选择,以在形成局部氧化物层之后为半导体翅片提供均匀的高度。
    • 100. 发明授权
    • Re-silicide gate electrode for III-N device on Si substrate
    • Si衬底上III-N器件的硅化物栅电极
    • US08748900B1
    • 2014-06-10
    • US13851219
    • 2013-03-27
    • Translucent, Inc.
    • Rytis DargisAndrew ClarkErdem ArkunRobin SmithMichael Lebby
    • H01L23/58H01L21/26H01L21/32
    • H01L21/0254H01L21/02381H01L21/0245H01L21/02458H01L21/02488H01L21/02505H01L21/28264H01L29/66522H01L29/78
    • A method of fabricating a rare earth silicide gate electrode on III-N material grown on a silicon substrate includes growing a single crystal stress compensating template on a silicon substrate. The template is substantially crystal lattice matched to the surface of the silicon substrate. A single crystal GaN structure is grown on the surface of the template and substantially crystal lattice matched to the template. An active layer of single crystal III-N material is grown on the GaN structure and substantially crystal lattice matched to the GaN structure. A single crystal monoclinic rare earth oxide dielectric layer is grown on the active layer of III-N material and a single crystal rare earth silicide gate electrode is grown on the dielectric layer, the silicide. Relative portions of the gadolinium metal and the silicon are adjusted during deposition so they react to form rare earth silicide during deposition.
    • 在硅衬底上生长的III-N材料上制造稀土硅化物栅电极的方法包括在硅衬底上生长单晶应力补偿模板。 模板基本上与硅衬底的表面晶格匹配。 在模板的表面上生长单晶GaN结构,并且基本上与模板匹配的晶格。 在GaN结构上生长单晶III-N材料的有源层,并且基本上与GaN结构匹配的晶格。 在III-N材料的有源层上生长单晶单斜的稀土氧化物电介质层,并且在介电层硅化物上生长单晶稀土硅化物栅电极。 在沉积期间调整钆金属和硅的相对部分,使其在沉积期间反应以形成稀土硅化物。