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    • 4. 发明授权
    • Semiconductor device
    • 半导体器件
    • US07923788B2
    • 2011-04-12
    • US12207121
    • 2008-09-09
    • Tatsuya OhguroTakashi IzumidaSatoshi InabaKimitoshi OkanoNobutoshi Aoki
    • Tatsuya OhguroTakashi IzumidaSatoshi InabaKimitoshi OkanoNobutoshi Aoki
    • H01L21/28H01L29/08
    • H01L29/785H01L29/66795
    • A semiconductor device has a plurality of fins formed on a semiconductor substrate to be separated from each other, a first contact region which connects commonly one end side of the plurality of fins, a second contact region which connects commonly the other end side of the plurality of fins, a gate electrode arranged to be opposed to at least both side surfaces of the plurality of fins by sandwiching a gate insulating film therebetween, a source electrode including the first contact region and the plurality of fins on a side closer to the first contact region than the gate electrode, and a drain electrode including the second contact region and the plurality of fins on a side closer to the second contact than the gate electrode. The ratio Rd/Rs of a resistance Rd of each fin in the drain region to a resistance Rs of each fin in the source region is larger than 1.
    • 半导体器件具有形成在半导体衬底上的多个翅片以彼此分离,第一接触区域与多个翅片的共同的一端侧连接;第二接触区域,其共同连接多个翅片的另一端侧; 翅片,栅电极,通过在其间夹有栅极绝缘膜而布置成与所述多个翅片的至少两个侧表面相对,在所述第一触点更靠近所述第一触点的一侧包括所述第一接触区域和所述多个翅片的源电极 区域,以及包括第二接触区域的漏电极和在比栅电极更靠近第二接触的一侧的多个翅片。 漏极区域中的每个鳍​​片的电阻Rd与源极区域中的每个鳍​​片的电阻Rs的比Rd / Rs大于1。
    • 9. 发明授权
    • Nonvolatile semiconductor memory device
    • 非易失性半导体存储器件
    • US08134203B2
    • 2012-03-13
    • US12618119
    • 2009-11-13
    • Takashi IzumidaNobutoshi Aoki
    • Takashi IzumidaNobutoshi Aoki
    • H01L29/788H01L29/423
    • H01L27/11568H01L21/28282H01L27/0688H01L27/11578H01L27/11582
    • In a nonvolatile semiconductor memory device provided with memory cell transistors arranged in a direction and a select transistor to select the memory cell transistors, each of the memory cell transistors of a charge trap type are at least composed of a first insulating layer and a first gate electrode respectively, and the select transistor is at least composed of a second insulating layer and a second gate electrode. The first gate electrode is provided with a first silicide layer of a first width formed on the first insulating layer. The second gate electrode is provided with an impurity-doped silicon layer formed on the second insulating layer and with a second silicide layer of a second width formed on the impurity-doped silicon layer. The second silicide has the same composition as the first silicide. The second width is larger than the first width.
    • 在设置有沿方向排列的存储单元晶体管和选择晶体管以选择存储单元晶体管的非易失性半导体存储器件中,电荷陷阱型的每个存储单元晶体管至少由第一绝缘层和第一栅极 电极,并且选择晶体管至少由第二绝缘层和第二栅电极组成。 第一栅电极设置有形成在第一绝缘层上的第一宽度的第一硅化物层。 第二栅电极设置有形成在第二绝缘层上的杂质掺杂硅层,以及形成在杂质掺杂硅层上的第二宽度的第二硅化物层。 第二硅化物具有与第一硅化物相同的组成。 第二宽度大于第一宽度。
    • 10. 发明申请
    • NONVOLATILE SEMICONDUCTOR MEMORY DEVICE
    • 非易失性半导体存储器件
    • US20080179659A1
    • 2008-07-31
    • US12021003
    • 2008-01-28
    • Toshiyuki EndaHiroyoshi TanimotoTakashi Izumida
    • Toshiyuki EndaHiroyoshi TanimotoTakashi Izumida
    • H01L27/115
    • H01L27/115H01L27/11568H01L27/11578H01L27/11582H01L29/792H01L29/7926
    • A nonvolatile semiconductor memory device relating to one embodiment of this invention includes a substrate, a plurality of memory strings formed on said substrate, said memory string having a first select gate transistor, a plurality of memory cells and a second select gate transistor, said first select gate transistor having a first pillar semiconductor, a first gate insulation layer formed around said first pillar semiconductor and a first gate electrode being formed around said first gate insulation layer; said memory cell having a second pillar semiconductor, a first insulation layer formed around said second pillar semiconductor, a storage layer formed around said first insulation layer, a second insulation layer formed around said storage layer and first to nth electrodes (n is a natural number 2 or more) being formed around said second insulation layer, said first to nth electrodes being spread in two dimensions respectively, said second select gate transistor having a third pillar semiconductor, a second gate insulation layer formed around said third pillar semiconductor and a second gate electrode being formed around said second gate insulation layer, and a channel region of at least either said first select gate transistor or said second select gate transistor formed by an opposite conductive type semiconductor to a source region and a drain region.
    • 关于本发明的一个实施例的非易失性半导体存储器件包括衬底,形成在所述衬底上的多个存储器串,所述存储器串具有第一选择栅晶体管,多个存储单元和第二选择栅晶体管,所述第一 选择具有第一柱状半导体的栅极晶体管,形成在所述第一柱状半导体周围的第一栅极绝缘层和围绕所述第一栅极绝缘层形成的第一栅极电极; 所述存储单元具有第二柱状半导体,围绕所述第二柱状半导体形成的第一绝缘层,围绕所述第一绝缘层形成的存储层,形成在所述存储层和第一至第n电极周围的第二绝缘层(n为自然数) 2个或更多个),所述第一至第n电极分别以两维扩展,所述第二选择栅晶体管具有第三柱半导体,围绕所述第三柱半导体形成的第二栅绝缘层和第二栅极 形成在所述第二栅极绝缘层周围的电极,以及至少所述第一选择栅极晶体管或所述第二选择栅极晶体管的沟道区域,所述沟道区域由相对的导电型半导体形成为源极区域和漏极区域。