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    • 91. 发明申请
    • Nonvolatile semiconductor memory device and manufacturing method thereof
    • 非易失性半导体存储器件及其制造方法
    • US20080067583A1
    • 2008-03-20
    • US11898746
    • 2007-09-14
    • Masaru KidohRyota KatsumataHiroyasu TanakaHideaki AochiMasaru Kito
    • Masaru KidohRyota KatsumataHiroyasu TanakaHideaki AochiMasaru Kito
    • H01L29/792H01L21/4763
    • H01L27/105G11C16/0483H01L21/8221H01L27/0688H01L27/115H01L27/11529H01L27/11556H01L27/11568H01L27/11582H01L29/66825H01L29/7881
    • A nonvolatile semiconductor memory device includes a substrate, and a plurality of memory strings, the memory string including a first selection transistor including a first pillar shaped semiconductor formed perpendicular to the substrate, a first gate insulating film formed around the first pillar shaped semiconductor, and a first gate electrode formed around the first gate insulating film, and a plurality of memory cells including a second pillar shaped semiconductor formed on the first pillar shaped semiconductor, the diameter of the first pillar shaped semiconductor being larger than the diameter of the second pillar shaped semiconductor at the part where the second pillar shaped semiconductor is connected to the first pillar shaped semiconductor, a first insulating film formed around the second pillar shaped semiconductor, a charge storage layer formed around the first insulating film, a second insulating film formed around the charge storage layer, and first to nth electrodes formed around the second insulating film (n is a natural number not less than 2), the first to nth electrodes being plate shaped, the first to nth electrodes being first to nth conductor layers spread in two dimensions, and a second selection transistor including a third pillar shaped semiconductor formed on the second pillar shaped semiconductor, a second gate insulating film formed around the third pillar shaped semiconductor and a second gate electrode formed around the second gate insulating film.
    • 非易失性半导体存储器件包括衬底和多个存储器串,所述存储器串包括第一选择晶体管,所述第一选择晶体管包括垂直于所述衬底形成的第一柱状半导体,围绕所述第一柱状半导体形成的第一栅极绝缘膜,以及 形成在第一栅极绝缘膜周围的第一栅电极和形成在第一柱状半导体上的包括第二柱状半导体的多个存储单元,第一柱状半导体的直径大于第二柱状半导体的直径 在第二柱状半导体与第一柱状半导体连接的部分处的半导体,形成在第二柱状半导体周围的第一绝缘膜,形成在第一绝缘膜周围的电荷存储层,形成在电荷周围的第二绝缘膜 存储层和第一至第n电极fo 围绕第二绝缘膜(n是不小于2的自然数),第一至第n电极是板状的,第一至第n电极是第一至第n导体层在二维上扩展,第二选择晶体管包括 形成在第二柱状半导体上的第三柱状半导体,围绕第三柱状半导体形成的第二栅极绝缘膜和形成在第二栅极绝缘膜周围的第二栅电极。
    • 97. 发明申请
    • Semiconductor memory device and method of manufacturing the same
    • 半导体存储器件及其制造方法
    • US20050110067A1
    • 2005-05-26
    • US10901996
    • 2004-07-30
    • Toshiharu TanakaMasaru Kito
    • Toshiharu TanakaMasaru Kito
    • H01L27/108H01L21/8242
    • H01L27/10867H01L27/10829
    • A semiconductor memory device includes a trench formed in the semiconductor substrate, a diffusion layer for a first electrode formed within the semiconductor substrate so as to be in contact with an inner surface of the trench, a capacitor insulating film formed on the diffusion layer, a conductive layer for a second electrode formed so as to bury a lower portion of the trench, a first insulating film formed on the conductive layer and along a side surface of the trench, a first conductive layer formed so as to bury an intermediate portion of the trench, a first contact layer formed so as to bury an upper portion of the trench, and a second contact layer formed on the surface of the semiconductor substrate so as to be in contact with the first contact layer.
    • 半导体存储器件包括形成在半导体衬底中的沟槽,形成在半导体衬底内的与第一沟槽的内表面接触的第一电极的扩散层,形成在扩散层上的电容器绝缘膜, 用于第二电极的导电层,其形成为埋入沟槽的下部,形成在导电层上并沿着沟槽的侧表面的第一绝缘膜,形成为将第二绝缘膜的中间部分 沟槽,形成为埋入沟槽的上部的第一接触层和形成在半导体衬底的表面上以与第一接触层接触的第二接触层。
    • 100. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US08767452B2
    • 2014-07-01
    • US13418651
    • 2012-03-13
    • Masaru KitoTomoko FujiwaraHideaki Aochi
    • Masaru KitoTomoko FujiwaraHideaki Aochi
    • G11C11/14G11C11/00
    • H01L27/11565G11C5/025H01L27/11582H01L29/7926
    • According to one embodiment, a semiconductor memory device includes a stacked body, a semiconductor pillar, a charge storage layer, a tunneling layer, a dividing trench and a first heating unit. The stacked body includes a plurality of first insulating films stacked alternately with a plurality of electrode films. The semiconductor pillar pierces the stacked body. The charge storage layer is provided between the electrode films and the semiconductor pillar. The tunneling layer is provided between the charge storage layer and the semiconductor pillar. The dividing trench is provided between the semiconductor pillars in one direction orthogonal to a stacking direction of the stacked body to divide the electrode films. The first heating unit is provided in an interior of the dividing trench.
    • 根据一个实施例,半导体存储器件包括堆叠体,半导体柱,电荷存储层,隧道层,分隔沟槽和第一加热单元。 层叠体包括与多个电极膜交替堆叠的多个第一绝缘膜。 半导体柱穿透层叠体。 电荷存储层设置在电极膜和半导体柱之间。 隧道层设置在电荷存储层和半导体柱之间。 在与层叠体的堆叠方向正交的一个方向上的半导体柱之间设置分割沟槽,以分割电极膜。 第一加热单元设置在分隔沟槽的内部。