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    • 6. 发明授权
    • Non-volatile memory devices having trenches
    • 具有沟槽的非易失性存储器件
    • US07259421B2
    • 2007-08-21
    • US11020920
    • 2004-12-23
    • Sung-Hoi HurJung-Dal Choi
    • Sung-Hoi HurJung-Dal Choi
    • H01L29/788
    • H01L27/115H01L27/11519H01L27/11521H01L27/11524H01L27/11526H01L27/11529
    • A semiconductor memory device includes a semiconductor substrate having a trench therein. First and second gate patterns are formed on a surface of the substrate adjacent the trench, a respective one of which is on a respective opposing side of the trench. A split source/drain region is formed in the substrate between the first gate pattern and the second gate pattern such that the split source/drain region is divided by the trench. The split source/drain region includes a first source/drain subregion between the first gate pattern and the trench and a second source/drain subregion between the second gate pattern and the trench and spaced apart from the first source/drain subregion. A connecting region is formed in the substrate that extends around the trench from the first source/drain subregion to the second source/drain subregion. Related methods are also discussed.
    • 半导体存储器件包括其中具有沟槽的半导体衬底。 第一和第二栅极图案形成在与沟槽相邻的衬底的表面上,其相应的一个位于沟槽的相应的相对侧上。 在第一栅极图案和第二栅极图案之间的衬底中形成分离源极/漏极区域,使得分离源极/漏极区域被沟槽分开。 分离源极/漏极区域包括在第一栅极图案和沟槽之间的第一源极/漏极子区域和在第二栅极图案和沟槽之间并与第一源极/漏极子区域间隔开的第二源极/漏极子区域。 在从第一源/漏区域到第二源极/漏极子区域的沟槽周围延伸的衬底中形成连接区域。 还讨论了相关方法。
    • 7. 发明申请
    • Non-volatile memory devices having floating gates and related methods of forming the same
    • 具有浮动栅极的非易失性存储器件及其相关方法
    • US20070108498A1
    • 2007-05-17
    • US11594327
    • 2006-11-08
    • Joon-Hee LeeJong-Ho ParkJin-Hyun ShinSung-Hoi HurYong-Seok KimJong-Won Kim
    • Joon-Hee LeeJong-Ho ParkJin-Hyun ShinSung-Hoi HurYong-Seok KimJong-Won Kim
    • H01L29/788
    • H01L29/7881H01L27/115H01L27/11521H01L29/42324
    • A nonvolatile memory device may include a substrate having a cell region, and a cell device isolation layer on the cell region of the substrate to define a cell active region. A floating gate may include a lower floating gate and an upper floating gate sequentially stacked on the cell active region, and a tunnel insulation pattern may be between the floating gate and the cell active region. A control gate electrode may be on the floating gate, and a blocking insulation pattern may be between the control gate electrode and the floating gate. More particularly, the upper floating gate may include a flat portion on the lower floating gate and a pair of wall portions extending upward from both edges of the flat portion adjacent to the cell device isolation layer. Moreover, a width of an upper portion of a space surrounded by the flat portion and the pair of wall portions may be larger than a width of a lower portion of the space. Related methods are also discussed.
    • 非易失性存储器件可以包括具有单元区域的衬底和在衬底的单元区域上的单元器件隔离层,以限定电池活性区域。 浮置栅极可以包括顺序堆叠在单元有源区上的下浮置栅极和上浮置栅极,并且隧道绝缘图案可以在浮栅和电池有源区之间。 控制栅极电极可以在浮置栅极上,并且阻挡绝缘图案可以在控制栅电极和浮栅之间。 更具体地说,上部浮动栅极可以包括在下部浮动栅极上的平坦部分和从邻近电池器件隔离层的平坦部分的两个边缘向上延伸的一对壁部分。 此外,由平坦部分和一对壁部分围绕的空间的上部的宽度可以大于空间的下部的宽度。 还讨论了相关方法。
    • 9. 发明申请
    • METHOD OF FABRICATING CELL OF NONVOLATILE MEMORY DEVICE WITH FLOATING GATE
    • 具有浮动门的非易失性存储器件的制造方法
    • US20070029603A1
    • 2007-02-08
    • US11530827
    • 2006-09-11
    • Chang-Hyun LEEKyu-Charn PARKJeong-Hyuk CHOISung-Hoi HUR
    • Chang-Hyun LEEKyu-Charn PARKJeong-Hyuk CHOISung-Hoi HUR
    • H01L29/788H01L29/792
    • H01L27/11521H01L27/115H01L27/11519Y10S257/905
    • This disclosure provides cells of nonvolatile memory devices with floating gates and methods for fabricating the same. The cell of the nonvolatile memory device includes device isolation layers in parallel with each other on a predetermined region of a semiconductor substrate that define a plurality of active regions. Each device isolation layer has sidewalls that project over the semiconductor substrate. A plurality of word lines crosses over the device isolation layers. A tunnel oxide layer, a floating gate, a gate interlayer dielectric layer, and a control gate electrode are sequentially stacked between each active region and each word line. The floating gate and the control gate electrode have sidewalls that are self-aligned to the adjacent device isolation layers. The method for forming the self-aligned floating gate and the control gate electrode includes forming trenches in a semiconductor substrate to define a plurality of active regions and concurrently forming an oxide layer pattern, a floating gate pattern, a dielectric layer pattern and a control gate pattern that are sequentially stacked. A conductive layer is then formed on the device isolation layers and the control gate pattern. Thereafter, the conductive layer, the control gate pattern, the dielectric layer pattern, the floating gate pattern, and the oxide layer pattern are successively patterned.
    • 本公开提供具有浮动栅极的非易失性存储器件单元以及用于制造其的方法。 非易失性存储器件的单元包括在限定多个有源区域的半导体衬底的预定区域上彼此并联的器件隔离层。 每个器件隔离层具有突出在半导体衬底上的侧壁。 多个字线跨越器件隔离层。 隧道氧化物层,浮置栅极,栅极层间电介质层和控制栅极电极顺序堆叠在每个有源区域和每条字线之间。 浮栅和控制栅极具有与相邻器件隔离层自对准的侧壁。 形成自对准浮栅和控制栅极的方法包括在半导体衬底中形成沟槽以限定多个有源区并同时形成氧化物层图案,浮栅图案,电介质层图案和控制栅极 顺序堆叠的图案。 然后在器件隔离层和控制栅极图案上形成导电层。 此后,连续地形成导电层,控制栅极图案,电介质层图案,浮栅图案和氧化物层图案。
    • 10. 发明授权
    • Method of fabricating cell of nonvolatile memory device with floating gate
    • 具有浮动栅极的非易失性存储器件单元制造方法
    • US07122426B2
    • 2006-10-17
    • US10788002
    • 2004-02-25
    • Chang-Hyun LeeKyu-Charn ParkJeong-Hyuk ChoiSung-Hoi Hur
    • Chang-Hyun LeeKyu-Charn ParkJeong-Hyuk ChoiSung-Hoi Hur
    • H01L21/8247
    • H01L27/11521H01L27/115H01L27/11519Y10S257/905
    • This disclosure provides cells of nonvolatile memory devices with floating gates and methods for fabricating the same. The cell of the nonvolatile memory device includes device isolation layers in parallel with each other on a predetermined region of a semiconductor substrate that define a plurality of active regions. Each device isolation layer has sidewalls that project over the semiconductor substrate. A plurality of word lines crosses over the device isolation layers. A tunnel oxide layer, a floating gate, a gate interlayer dielectric layer, and a control gate electrode are sequentially stacked between each active region and each word line. The floating gate and the control gate electrode have sidewalls that are self-aligned to the adjacent device isolation layers. The method for forming the self-aligned floating gate and the control gate electrode includes forming trenches in a semiconductor substrate to define a plurality of active regions and concurrently forming an oxide layer pattern, a floating gate pattern, a dielectric layer pattern and a control gate pattern that are sequentially stacked. A conductive layer is then formed on the device isolation layers and the control gate pattern. Thereafter, the conductive layer, the control gate pattern, the dielectric layer pattern, the floating gate pattern, and the oxide layer pattern are successively patterned.
    • 本公开提供具有浮动栅极的非易失性存储器件单元以及用于制造其的方法。 非易失性存储器件的单元包括在限定多个有源区域的半导体衬底的预定区域上彼此并联的器件隔离层。 每个器件隔离层具有突出在半导体衬底上的侧壁。 多个字线跨越器件隔离层。 隧道氧化物层,浮置栅极,栅极层间电介质层和控制栅极电极顺序堆叠在每个有源区域和每条字线之间。 浮栅和控制栅极具有与相邻器件隔离层自对准的侧壁。 形成自对准浮栅和控制栅极的方法包括在半导体衬底中形成沟槽以限定多个有源区并同时形成氧化物层图案,浮栅图案,电介质层图案和控制栅极 顺序堆叠的图案。 然后在器件隔离层和控制栅极图案上形成导电层。 此后,连续地形成导电层,控制栅极图案,电介质层图案,浮栅图案和氧化物层图案。