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    • 2. 发明授权
    • Nonvolatile semiconductor memory device and method for manufacturing same
    • 非易失性半导体存储器件及其制造方法
    • US08624317B2
    • 2014-01-07
    • US13402477
    • 2012-02-22
    • Fumitaka AraiSatoshi NagashimaHisataka MeguroHideto TakekidaKenta Yamada
    • Fumitaka AraiSatoshi NagashimaHisataka MeguroHideto TakekidaKenta Yamada
    • H01L29/792
    • H01L27/11524G11C16/0466H01L27/11551H01L29/66825H01L29/7881
    • Nonvolatile semiconductor memory device includes first memory cell array layer, first insulating layer formed thereabove, and second memory cell array layer formed thereabove. First memory cell array layer includes first NAND cell units each including plural first memory cells. The first memory cell includes first semiconductor layer, first gate insulating film formed thereabove, and first charge accumulation layer formed thereabove. The second memory cell array layer includes second NAND cell units each including plural second memory cells. The second memory cell includes second charge accumulation layer, second gate insulating film formed thereabove, and second semiconductor layer formed thereabove. Control gates are formed, via an inter-gate insulating film, on first-direction both sides of the first and second charge accumulation layers positioned the latter above the former via the first insulating layer. The control gates extend in a second direction perpendicular to the first direction.
    • 非易失性半导体存储器件包括第一存储单元阵列层,形成在其上的第一绝缘层和形成在其上的第二存储单元阵列层。 第一存储单元阵列层包括每个包括多个第一存储单元的第一NAND单元单元。 第一存储单元包括形成在其上的第一半导体层,第一栅极绝缘膜和在其上形成的第一电荷累积层。 第二存储单元阵列层包括每个包括多个第二存储单元的第二NAND单元单元。 第二存储单元包括第二电荷累积层,在其上形成的第二栅极绝缘膜,以及在其上形成的第二半导体层。 控制栅极经由栅极间绝缘膜,在第一和第二电荷累积层的第一方向两侧经由第一绝缘层位于前者之上。 控制门在垂直于第一方向的第二方向延伸。
    • 3. 发明授权
    • Semiconductor memory device and manufacturing method thereof
    • 半导体存储器件及其制造方法
    • US08377814B2
    • 2013-02-19
    • US13164931
    • 2011-06-21
    • Atsuhiro SatoHiroyuki NittaFumitaka Arai
    • Atsuhiro SatoHiroyuki NittaFumitaka Arai
    • H01L21/28
    • H01L27/11524H01L21/76816H01L27/11521
    • A semiconductor memory device includes a first block having first memory cells and first select transistors, a second block having second memory cells and second select transistors, and arranged adjacent to the first block in a first direction, the second select transistor being arranged to face the first select transistor and commonly having a diffusion region with the first select transistor, a first interconnection layer provided on the diffusion region between the first and second blocks and extending in a second direction, and a second interconnection layer having a first portion provided in contact with an upper portion of the first interconnection layer and extending to a portion outside the first interconnection layer, and a second portion extending in the second direction and connected to the first portion in a portion outside a portion on the first interconnection layer.
    • 半导体存储器件包括具有第一存储器单元和第一选择晶体管的第一块,具有第二存储单元和第二选择晶体管的第二块,并且沿第一方向布置成与第一块相邻,第二选择晶体管被布置为面对 第一选择晶体管,并且通常具有与第一选择晶体管的扩散区,第一互连层,设置在第一和第二块之间的扩散区上并沿第二方向延伸;第二互连层,具有设置成与第一选择晶体管接触的第一部分 第一互连层的上部并且延伸到第一互连层外部的部分,以及第二部分,其在第二方向上延伸并且在第一互连层上的部分外部的部分连接到第一部分。
    • 4. 发明授权
    • Semiconductor memory device and manufacturing method therefor
    • 半导体存储器件及其制造方法
    • US08120092B2
    • 2012-02-21
    • US12565181
    • 2009-09-23
    • Atsuhiro SatoFumitaka Arai
    • Atsuhiro SatoFumitaka Arai
    • H01L29/76H01L29/94H01L31/062H01L31/113H01L31/119
    • H01L27/11519H01L27/11521H01L27/11529
    • First gate electrodes of memory cell transistors are formed in series with each other on a semiconductor substrate. A second gate electrode of a first selection transistor is formed adjacent to one end of the first electrodes. A third gate electrode of a second selection transistor is formed adjacent to the second electrode. A fourth gate electrode of a peripheral transistor is formed on the substrate. First, second, and third sidewall films are formed on side surfaces of the second, third, and fourth gate electrodes, respectively. A film thickness of the third sidewall film is larger than that of the first and second sidewall films. A space between the first electrode and the second electrode is larger than a space between the first electrodes, and a space between the second electrode and the third electrode is larger than a space between the first electrode and the second electrode.
    • 存储单元晶体管的第一栅电极在半导体衬底上彼此串联形成。 第一选择晶体管的第二栅电极与第一电极的一端相邻地形成。 第二选择晶体管的第三栅电极与第二电极相邻地形成。 在基板上形成周边晶体管的第四栅电极。 第一,第二和第三侧壁膜分别形成在第二,第三和第四栅电极的侧表面上。 第三侧壁膜的膜厚大于第一和第二侧壁膜的膜厚。 第一电极和第二电极之间的空间大于第一电极之间的空间,并且第二电极和第三电极之间的间隔大于第一电极和第二电极之间的间隔。
    • 5. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD THEREOF
    • 半导体存储器件及其制造方法
    • US20100052017A1
    • 2010-03-04
    • US12553496
    • 2009-09-03
    • Atsuhiro SATOHiroyuki NittaFumitaka Arai
    • Atsuhiro SATOHiroyuki NittaFumitaka Arai
    • H01L29/66H01L21/4763
    • H01L27/11524H01L21/76816H01L27/11521
    • A semiconductor memory device includes a first block having first memory cells and first select transistors, a second block having second memory cells and second select transistors, and arranged adjacent to the first block in a first direction, the second select transistor being arranged to face the first select transistor and commonly having a diffusion region with the first select transistor, a first interconnection layer provided on the diffusion region between the first and second blocks and extending in a second direction, and a second interconnection layer having a first portion provided in contact with an upper portion of the first interconnection layer and extending to a portion outside the first interconnection layer, and a second portion extending in the second direction and connected to the first portion in a portion outside a portion on the first interconnection layer.
    • 半导体存储器件包括具有第一存储器单元和第一选择晶体管的第一块,具有第二存储单元和第二选择晶体管的第二块,并且沿第一方向布置成与第一块相邻,第二选择晶体管被布置为面对 第一选择晶体管,并且通常具有与第一选择晶体管的扩散区,第一互连层,设置在第一和第二块之间的扩散区上并沿第二方向延伸;第二互连层,具有设置成与第一选择晶体管接触的第一部分 第一互连层的上部并且延伸到第一互连层外部的部分,以及第二部分,其在第二方向上延伸并且在第一互连层上的部分外部的部分连接到第一部分。
    • 9. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD THEREOF
    • 半导体存储器件及其制造方法
    • US20110250744A1
    • 2011-10-13
    • US13164931
    • 2011-06-21
    • Atsuhiro SATOHiroyuki NittaFumitaka Arai
    • Atsuhiro SATOHiroyuki NittaFumitaka Arai
    • H01L21/28
    • H01L27/11524H01L21/76816H01L27/11521
    • A semiconductor memory device includes a first block having first memory cells and first select transistors, a second block having second memory cells and second select transistors, and arranged adjacent to the first block in a first direction, the second select transistor being arranged to face the first select transistor and commonly having a diffusion region with the first select transistor, a first interconnection layer provided on the diffusion region between the first and second blocks and extending in a second direction, and a second interconnection layer having a first portion provided in contact with an upper portion of the first interconnection layer and extending to a portion outside the first interconnection layer, and a second portion extending in the second direction and connected to the first portion in a portion outside a portion on the first interconnection layer.
    • 半导体存储器件包括具有第一存储器单元和第一选择晶体管的第一块,具有第二存储单元和第二选择晶体管的第二块,并且沿第一方向布置成与第一块相邻,第二选择晶体管被布置为面对 第一选择晶体管,并且通常具有与第一选择晶体管的扩散区,第一互连层,设置在第一和第二块之间的扩散区上并沿第二方向延伸;第二互连层,具有设置成与第一选择晶体管接触的第一部分 第一互连层的上部并且延伸到第一互连层外部的部分,以及第二部分,其在第二方向上延伸并且在第一互连层上的部分外部的部分连接到第一部分。
    • 10. 发明申请
    • NAND FLASH MEMORY
    • NAND闪存
    • US20110249493A1
    • 2011-10-13
    • US13164486
    • 2011-06-20
    • Atsuhiro SATOFumitaka Arai
    • Atsuhiro SATOFumitaka Arai
    • G11C16/12G11C16/04
    • G11C11/5628G11C16/0483
    • In a state in which a first and second selection gate transistors are turned off and a first voltage is applied to a control gate of a second memory cell transistor which is connected to a source line side of a first memory cell transistor selected from among the memory cell transistors and which is to be cut off, a second voltage which is higher than the first voltage and which causes a plurality of third memory cell transistors remaining unselected in the memory cell transistors to conduct is applied to control gates of the third memory cell transistors, and thereafter a threshold voltage of the first memory cell transistor is changed to a threshold voltage higher than the first threshold voltage corresponding to the erase state by applying a third voltage which is higher than the second voltage to a control gate of the first memory cell transistor.
    • 在第一和第二选择栅极晶体管被截止并且第一电压被施加到第二存储单元晶体管的控制栅极的状态下,第二存储单元晶体管连接到从存储器中选择的第一存储单元晶体管的源极线侧 单元晶体管并且要被切断,高于第一电压的第二电压并且使得在存储单元晶体管导通时保持未选择的多个第三存储单元晶体管被施加到第三存储单元晶体管的控制栅极 之后,通过向第一存储单元的控制栅极施加高于第二电压的第三电压,将第一存储单元晶体管的阈值电压改变为高于与擦除状态相对应的第一阈值电压的阈值电压 晶体管。