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    • 61. 发明申请
    • Fabricating a memory cell arrangement
    • 制作记忆单元布置
    • US20060057814A1
    • 2006-03-16
    • US11220918
    • 2005-09-08
    • Rolf Weis
    • Rolf Weis
    • H01L21/20
    • H01L29/66181H01L27/1087H01L29/945
    • A method is described for fabricating a DRAM memory cell, which includes a trench capacitor and a select transistor. After the capacitor trench has been etched and optionally the first capacitor electrode has been produced, the trench is filled with a dummy filling. After the gate electrode and the first and second source/drain regions have been provided, the dummy filling is removed, and the capacitor dielectric and the second capacitor electrode are provided. As a result, it is possible to use temperature-sensitive materials for the capacitor dielectric and the second capacitor electrode despite the use of high-temperature steps. In the memory cell arrangement formed by this method, the direction of the conductive channel, which connects first and second source/drain regions to one another, can differ from the direction of the bit lines and of the word lines (e.g., by 45°).
    • 描述了一种用于制造包括沟槽电容器和选择晶体管的DRAM存储单元的方法。 在蚀刻电容器沟槽并且任选地已经生产第一电容器电极之后,沟槽填充有虚拟填充物。 在设置了栅极电极和第一和第二源极/漏极区域之后,去除虚拟填充物,并且提供电容器电介质和第二电容器电极。 结果,尽管使用高温步骤,也可以使用用于电容器电介质和第二电容器电极的温度敏感材料。 在通过该方法形成的存储单元布置中,将第一和第二源极/漏极区域彼此连接的导电沟道的方向可以不同于位线和字线的方向(例如,45° )。
    • 62. 发明申请
    • Transistor, memory cell array and method of manufacturing a transistor
    • 晶体管,存储单元阵列及制造晶体管的方法
    • US20050285153A1
    • 2005-12-29
    • US11128782
    • 2005-05-13
    • Rolf WeisTill SchloesserUlrike Schwerin
    • Rolf WeisTill SchloesserUlrike Schwerin
    • H01L21/336H01L21/8242H01L27/108H01L27/148H01L29/78H01L29/786
    • H01L27/10894H01L27/10808H01L27/10838H01L27/10876H01L27/10879H01L29/66621H01L29/7834H01L29/7851
    • A transistor, memory cell array and method of manufacturing a transistor are disclosed. In one embodiment, the invention refers to a transistor, which is formed at least partially in a semiconductor substrate, comprising a first and a second source/drain regions, a channel region connecting said first and second source/drain regions, said channel region being disposed in said semiconductor substrate, and a gate electrode disposed along said channel region and being electrically insulated from said channel region, for controlling an electrical current flowing between said first and second source/drain regions, wherein said channel region comprises a fin-region in which the channel has the shape of a ridge, said ridge comprising a top side and two lateral sides in a cross section perpendicular to a line connecting said first and second source/drain regions, wherein said top side is disposed beneath a surface of said semiconductor substrate and said gate electrode is disposed along said top side and said two lateral sides.
    • 公开了晶体管,存储单元阵列和制造晶体管的方法。 在一个实施例中,本发明涉及至少部分地形成在半导体衬底中的晶体管,包括第一和第二源极/漏极区域,连接所述第一和第二源极/漏极区域的沟道区域,所述沟道区域是 设置在所述半导体衬底中的栅电极以及沿着所述沟道区设置并与所述沟道区电绝缘的栅极,用于控制在所述第一和第二源/漏区之间流动的电流,其中所述沟道区包括 所述通道具有脊的形状,所述脊包括垂直于连接所述第一和第二源极/漏极区的线的横截面中的顶侧和两个侧边,其中所述顶侧设置在所述半导体的表面下方 基板和所述栅电极沿着所述顶侧和所述两个横向侧面设置。
    • 64. 发明授权
    • Memory cell with trench capacitor and method of fabricating the memory cell
    • 具有沟槽电容器的存储单元和制造存储单元的方法
    • US06420239B2
    • 2002-07-16
    • US09871010
    • 2001-05-31
    • Rolf Weis
    • Rolf Weis
    • H01L218242
    • H01L27/10864H01L27/10876
    • The memory cell has a trench in which a capacitor is formed. Furthermore, a vertical transistor is formed in the trench, above the trench capacitor. The doping regions of the vertical transistor are arranged in the substrate. In order to connect the gate electrode of the vertical transistor to a word line, a dielectric layer having an inner opening is arranged in the trench, above the gate electrode. The dielectric layer is configured as lateral edge webs which project beyond the cross section of the trench and thus cover part of the substrate. The lateral edge webs enable self-aligned formation of an isolation trench.
    • 存储单元具有形成电容器的沟槽。 此外,在沟槽电容器上方的沟槽中形成垂直晶体管。 垂直晶体管的掺杂区域布置在衬底中。 为了将垂直晶体管的栅电极连接到字线,在沟槽中布置具有内部开口的电介质层,栅电极上方。 电介质层被构造为横向边缘腹板,其突出超过沟槽的横截面并因此覆盖衬底的一部分。 横向边缘腹板使得能够自对准地形成隔离沟槽。
    • 66. 发明申请
    • Semiconductor Device and Method for Manufacturing a Semiconductor Device
    • 半导体装置及半导体装置的制造方法
    • US20130307059A1
    • 2013-11-21
    • US13476613
    • 2012-05-21
    • Rolf Weis
    • Rolf Weis
    • H01L29/78H01L21/336
    • H01L29/1095H01L29/0634H01L29/0653H01L29/0696H01L29/42368H01L29/66734H01L29/7813
    • A semiconductor device includes a first region of a first conductivity type and a body region of a second conductivity type, the first conductivity type being different from the second conductivity type. The body region is disposed on a side of a first surface of the semiconductor substrate. The semiconductor device further includes a plurality of trenches arranged in the first surface of the substrate, the trenches extending in a first direction having a component perpendicular to the first surface. Doped portions of the second conductivity type are adjacent to a lower portion of a sidewall of the trenches. The doped portions are electrically coupled to the body region via contact regions. The semiconductor device further includes a gate electrode disposed in an upper portion of the trenches.
    • 半导体器件包括第一导电类型的第一区域和第二导电类型的体区域,第一导电类型不同于第二导电类型。 身体区域设置在半导体衬底的第一表面的一侧。 半导体器件还包括布置在衬底的第一表面中的多个沟槽,沟槽沿着第一方向延伸,具有垂直于第一表面的分量。 第二导电类型的掺杂部分与沟槽的侧壁的下部相邻。 掺杂部分经由接触区电耦合到体区。 半导体器件还包括设置在沟槽上部的栅电极。