公开(公告)号：US20070059889A1

公开(公告)日：2007-03-15

申请号：US11531239

申请日：2006-09-12

申请人： Dae-Han Yoo ,  Kong-Soo Lee ,  Chang-Hoon Lee ,  Yong-Woo Hyung ,  Hyeon-Deok Lee ,  Hyo-Jung KIM ,  Jung-Hwan OH ,  Young-Sub You

发明人： Dae-Han Yoo ,  Kong-Soo Lee ,  Chang-Hoon Lee ,  Yong-Woo Hyung ,  Hyeon-Deok Lee ,  Hyo-Jung KIM ,  Jung-Hwan OH ,  Young-Sub You

IPC分类号： H01L21/336

CPC分类号： H01L27/10894 ,  H01L27/10876 ,  H01L29/4236 ,  H01L29/66621

摘要： A recessed gate electrode structure includes a first recess and a second recess in communication with the first recess both formed in a substrate. The second recess is larger than the first recess. A gate dielectric layer is formed on a top surface of the substrate and on an inner surface of the first and second recesses. A first polysilicon layer fills the first recess and is doped with impurities at a first impurity density. A second polysilicon layer fills the second recess and is doped with the impurities at a second impurity density. A void is defined within the second polysilicon layer. A third polysilicon layer is formed on the gate dielectric and first polysilicon layers and is doped with the impurities at a third impurity density. Due to the presence of impurities in the second polysilicon layer, migration of the void within the second recess may be substantially prevented.

摘要翻译： 凹陷栅极电极结构包括第一凹部和与形成在基板中的第一凹部连通的第二凹部。 第二凹部比第一凹部大。 栅极电介质层形成在基板的顶表面上和第一凹槽和第二凹槽的内表面上。 第一多晶硅层填充第一凹槽并以第一杂质密度掺杂杂质。 第二多晶硅层填充第二凹槽，并以第二杂质密度掺杂杂质。 在第二多晶硅层内限定空隙。 在栅极电介质和第一多晶硅层上形成第三多晶硅层，并以第三杂质密度掺杂杂质。 由于在第二多晶硅层中存在杂质，可以基本上防止第二凹陷内的空隙的迁移。

公开(公告)号：US20140048945A1

公开(公告)日：2014-02-20

申请号：US13927914

申请日：2013-06-26

申请人： Jong-Heun LIM ,  Hyo-Jung KIM ,  Ji-Woon IM ,  Kyung-Hyun KIM

发明人： Jong-Heun LIM ,  Hyo-Jung KIM ,  Ji-Woon IM ,  Kyung-Hyun KIM

IPC分类号： H01L23/48

CPC分类号： H01L23/48 ,  H01L27/11575 ,  H01L27/11582 ,  H01L2924/0002 ,  H01L2924/00

摘要： A nonvolatile memory device including a substrate which includes a cell array region and a connection region, an electrode structure formed on the cell array region and the connection region and including a plurality of laminated electrodes, a first recess formed in the electrode structure on the connection region and disposed between the cell array region and a second recess formed in the electrode structure on the connection region, and a plurality of vertical wirings formed on the plurality of electrodes exposed by the first recess.

摘要翻译： 一种非易失性存储器件，包括：包括单元阵列区域和连接区域的基板;形成在单元阵列区域上的电极结构和连接区域，并且包括多个层压电极;形成在电极结构中的第一凹部， 并且布置在单元阵列区域和形成在连接区域上的电极结构中的第二凹槽之间，以及形成在由第一凹部暴露的多个电极上的多个垂直布线。