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    • 10. 发明申请
    • Semiconductor device and manufacturing method thereof
    • 半导体装置及其制造方法
    • US20060170011A1
    • 2006-08-03
    • US11235168
    • 2005-09-27
    • Toshifumi IrisawaToshinori Numata
    • Toshifumi IrisawaToshinori Numata
    • H01L29/768
    • H01L29/0649H01L29/42392H01L29/7849H01L29/78687
    • A semiconductor device includes a gate-all-around MOSFET structure comprises a first semiconductor layer which is formed on a support substrate and which has a recess formed on a surface thereof, a second semiconductor layer formed on the first semiconductor layer and which has a part thereof formed to cross over the recess of the first semiconductor layer, a gate electrode which is formed through a gate insulation film to surround the crossing portion of the second semiconductor layer and which has parts other than the part located under the second semiconductor layer processed in a gate pattern, source and drain areas formed on the second semiconductor layer, and a sidewall insulation film which is formed on sidewall surfaces of the recess of the first semiconductor layer and which has a greater thickness than the gate insulation film.
    • 半导体器件包括栅极全环MOSFET结构,其包括形成在支撑衬底上并具有形成在其表面上的凹部的第一半导体层,形成在第一半导体层上的第二半导体层, 其形成为跨越所述第一半导体层的凹部,栅电极,其通过栅极绝缘膜形成以围绕所述第二半导体层的交叉部分,并且具有除了位于所述第二半导体层下方的部分以外的部分 形成在第二半导体层上的栅极图案,源极和漏极区域以及形成在第一半导体层的凹部的侧壁表面上并且具有比栅极绝缘膜更大的厚度的侧壁绝缘膜。