Flash memory cell with split gate structure and method for forming the same
    1.
    发明授权
    Flash memory cell with split gate structure and method for forming the same 有权
    具有分离栅结构的闪存单元及其形成方法

    公开(公告)号:US07951670B2

    公开(公告)日:2011-05-31

    申请号:US11368714

    申请日:2006-03-06

    IPC分类号: H01L21/336

    摘要: A split gate memory cell. A floating gate is disposed on and insulated from a substrate comprising an active area separated by a pair of isolation structures formed therein. The floating gate is disposed between the pair of isolation structures and does not overlap the upper surface thereof. A cap layer is disposed on the floating gate. A control gate is disposed over the sidewall of the floating gate and insulated therefrom, partially extending to the upper surface of the cap layer. A source region is formed in the substrate near one side of the floating gate.

    摘要翻译: 分离门存储单元。 浮置栅极设置在基板上并与基板绝缘,该基板包括由形成在其中的一对隔离结构分开的有源区域。 浮栅设置在一对隔离结构之间,并且不与其上表面重叠。 盖层设置在浮动栅上。 控制栅极设置在浮动栅极的侧壁上并与其绝缘,部分地延伸到盖层的上表面。 源极区域形成在靠近浮动栅极一侧的衬底中。

    Split-gate memory cells and fabrication methods thereof
    2.
    发明申请
    Split-gate memory cells and fabrication methods thereof 有权
    分离栅存储单元及其制造方法

    公开(公告)号:US20080121975A1

    公开(公告)日:2008-05-29

    申请号:US11592290

    申请日:2006-11-03

    IPC分类号: H01L29/788

    CPC分类号: H01L27/115 H01L27/11521

    摘要: Split-gate memory cells and fabrication methods thereof. A split-gate memory cell comprises a plurality of isolation regions formed on a semiconductor substrate along a first direction, between two adjacent isolation regions defining an active region having a pair of drains and a source region. A pair of floating gates are disposed on the active regions and self-aligned with the isolation regions, wherein a top level of the floating gate is equal to a top level of the isolation regions. A pair of control gates are self-aligned with the floating gates and disposed on the floating gates along a second direction. A source line is disposed between the pair of control gates along the second direction. A pair of select gates are disposed on the outer sidewalls of the pair of control gates along the second direction.

    摘要翻译: 分离栅存储单元及其制造方法。 分离栅极存储单元包括沿着第一方向形成在半导体衬底上的多个隔离区域,在限定具有一对漏极和源极区域的有源区域的两个相邻隔离区域之间。 一对浮置栅极设置在有源区上并与隔离区自对准,其中浮置栅极的顶层等于隔离区的顶层。 一对控制栅极与浮动栅极自对准并沿着第二方向设置在浮动栅极上。 源极线沿第二方向设置在该对控制栅极之间。 一对选择栅极沿着第二方向设置在该对控制栅极的外侧壁上。

    Split-gate memory cells and fabrication methods thereof
    3.
    发明申请
    Split-gate memory cells and fabrication methods thereof 失效
    分离栅存储单元及其制造方法

    公开(公告)号:US20080105917A1

    公开(公告)日:2008-05-08

    申请号:US11785382

    申请日:2007-04-17

    IPC分类号: H01L29/788 H01L27/115

    CPC分类号: H01L27/115 H01L27/11521

    摘要: Split-gate memory cells and fabrication methods thereof. A split-gate memory cell comprises a plurality of isolation regions formed on a semiconductor substrate along a first direction, between two adjacent isolation regions defining an active region having a pair of drains and a source region. A top level of the active regions is lower than a top level of the isolation regions. A pair of floating gates is disposed on the active regions and aligned with the isolation regions, wherein a passivation layer is disposed on the floating gate to prevent thinning from CMP. A pair of control gates is self-aligned with the floating gates and disposed on the floating gates along a second direction. A source line is disposed between the pair of control gates along the second direction. A pair of select gates is disposed on the outer sidewalls of the pair of control gates along the second direction.

    摘要翻译: 分离栅存储单元及其制造方法。 分离栅极存储单元包括沿着第一方向形成在半导体衬底上的多个隔离区域,两个相邻的隔离区域限定具有一对漏极和源极区域的有源区域。 活动区域的顶层低于隔离区域的顶层。 一对浮置栅极设置在有源区上并与隔离区对准,其中钝化层设置在浮栅上以防止CMP变薄。 一对控制栅极与浮动栅极自对准,并沿第二方向设置在浮动栅极上。 源极线沿第二方向设置在该对控制栅极之间。 一对选择栅极沿着第二方向设置在该对控制栅极的外侧壁上。

    Split-gate memory cells and fabrication methods thereof
    4.
    发明授权
    Split-gate memory cells and fabrication methods thereof 失效
    分离栅存储单元及其制造方法

    公开(公告)号:US07667261B2

    公开(公告)日:2010-02-23

    申请号:US11785382

    申请日:2007-04-17

    IPC分类号: H01L29/788

    CPC分类号: H01L27/115 H01L27/11521

    摘要: Split-gate memory cells and fabrication methods thereof. A split-gate memory cell comprises a plurality of isolation regions formed on a semiconductor substrate along a first direction, between two adjacent isolation regions defining an active region having a pair of drains and a source region. A top level of the active regions is lower than a top level of the isolation regions. A pair of floating gates is disposed on the active regions and aligned with the isolation regions, wherein a passivation layer is disposed on the floating gate to prevent thinning from CMP. A pair of control gates is self-aligned with the floating gates and disposed on the floating gates along a second direction. A source line is disposed between the pair of control gates along the second direction. A pair of select gates is disposed on the outer sidewalls of the pair of control gates along the second direction.

    摘要翻译: 分离栅存储单元及其制造方法。 分离栅存储器单元包括沿着第一方向在半导体衬底上形成的多个隔离区域,在限定具有一对漏极和源极区域的有源区域的两个相邻隔离区域之间。 活动区域的顶层低于隔离区域的顶层。 一对浮置栅极设置在有源区上并与隔离区对准,其中钝化层设置在浮栅上以防止CMP变薄。 一对控制栅极与浮动栅极自对准,并沿第二方向设置在浮动栅极上。 源极线沿第二方向设置在该对控制栅极之间。 一对选择栅极沿着第二方向设置在该对控制栅极的外侧壁上。

    Split-gate memory cells and fabrication methods thereof
    5.
    发明授权
    Split-gate memory cells and fabrication methods thereof 有权
    分离栅存储单元及其制造方法

    公开(公告)号:US07652318B2

    公开(公告)日:2010-01-26

    申请号:US11592290

    申请日:2006-11-03

    IPC分类号: H01L29/788

    CPC分类号: H01L27/115 H01L27/11521

    摘要: Split-gate memory cells and fabrication methods thereof. A split-gate memory cell comprises a plurality of isolation regions formed on a semiconductor substrate along a first direction, between two adjacent isolation regions defining an active region having a pair of drains and a source region. A pair of floating gates are disposed on the active regions and self-aligned with the isolation regions, wherein a top level of the floating gate is equal to a top level of the isolation regions. A pair of control gates are self-aligned with the floating gates and disposed on the floating gates along a second direction. A source line is disposed between the pair of control gates along the second direction. A pair of select gates are disposed on the outer sidewalls of the pair of control gates along the second direction.

    摘要翻译: 分离栅存储单元及其制造方法。 分离栅极存储单元包括沿着第一方向形成在半导体衬底上的多个隔离区域,两个相邻的隔离区域限定具有一对漏极和源极区域的有源区域。 一对浮置栅极设置在有源区上并与隔离区自对准,其中浮置栅极的顶层等于隔离区的顶层。 一对控制栅极与浮动栅极自对准并沿着第二方向设置在浮动栅极上。 源极线沿第二方向设置在该对控制栅极之间。 一对选择栅极沿着第二方向设置在该对控制栅极的外侧壁上。

    Flash memory cell with split gate structure and method for forming the same
    6.
    发明申请
    Flash memory cell with split gate structure and method for forming the same 有权
    具有分离栅结构的闪存单元及其形成方法

    公开(公告)号:US20070205436A1

    公开(公告)日:2007-09-06

    申请号:US11368714

    申请日:2006-03-06

    IPC分类号: H01L29/76

    摘要: A split gate memory cell. A floating gate is disposed on and insulated from a substrate comprising an active area separated by a pair of isolation structures formed therein. The floating gate is disposed between the pair of isolation structures and does not overlap the upper surface thereof. A cap layer is disposed on the floating gate. A control gate is disposed over the sidewall of the floating gate and insulated therefrom, partially extending to the upper surface of the cap layer. A source region is formed in the substrate near one side of the floating gate.

    摘要翻译: 分离门存储单元。 浮置栅极设置在基板上并与基板绝缘,该基板包括由形成在其中的一对隔离结构分开的有源区域。 浮栅设置在一对隔离结构之间,并且不与其上表面重叠。 盖层设置在浮动栅上。 控制栅极设置在浮动栅极的侧壁上并与其绝缘,部分地延伸到盖层的上表面。 源极区域形成在靠近浮动栅极一侧的衬底中。

    Poly etching solution to improve silicon trench for low STI profile
    7.
    发明授权
    Poly etching solution to improve silicon trench for low STI profile 有权
    Poly蚀刻解决方案,以改善硅沟槽的低STI特性

    公开(公告)号:US06649489B1

    公开(公告)日:2003-11-18

    申请号:US10366207

    申请日:2003-02-13

    IPC分类号: H01L2176

    CPC分类号: H01L21/76232

    摘要: A method of etch polysilicon adjacent to a recessed STI structure feature is described. A substrate is provided with a dielectric layer thereon and a polysilicon layer on the dielectric layer. A shallow trench is formed that extends through the polysilicon and dielectric layers into the substrate. An insulating material is used to fill the trench and is then recessed in the trench below the surface of the substrate by polishing and etching steps. A conformal buffer layer is deposited which covers the polysilicon and sidewalls of the trench above the recessed insulating layer. The buffer layer is etched back to expose the insulating layer and the polysilicon is removed by a plasma etch. A spacer comprised of a portion of the buffer layer protects the substrate during the polysilicon etch to prevent unwanted trenches from being formed adjacent to the STI structure, thereby increasing the etch process window.

    摘要翻译: 描述了与凹陷STI结构特征相邻的蚀刻多晶硅的方法。 衬底上设置介电层,并在电介质层上设置多晶硅层。 形成浅沟槽,其延伸穿过多晶硅和电介质层进入衬底。 绝缘材料用于填充沟槽,然后通过抛光和蚀刻步骤将其凹入到衬底表面下方的沟槽中。 沉积保形缓冲层,其覆盖凹陷绝缘层上方的沟槽的多晶硅和侧壁。 将缓冲层回蚀刻以暴露绝缘层,并且通过等离子体蚀刻去除多晶硅。 由缓冲层的一部分构成的间隔件在多晶硅蚀刻期间保护衬底以防止在STI结构附近形成不必要的沟槽,从而增加蚀刻工艺窗口。

    Architecture to suppress bit-line leakage
    8.
    发明授权
    Architecture to suppress bit-line leakage 有权
    抑制位线泄漏的体系结构

    公开(公告)号:US06819593B2

    公开(公告)日:2004-11-16

    申请号:US10318458

    申请日:2002-12-13

    IPC分类号: G11C1600

    CPC分类号: G11C16/3418 G11C16/0425

    摘要: A method to suppress bit-line leakage in a nonvolatile memory cell is achieved. The method comprises providing an array of nonvolatile memory cells comprising source and bulk terminals. The array comprises a plurality of subarrays. The sources of all the nonvolatile cells in each subarray are coupled together to form a common subarray source. Bulks of all the nonvolatile cells in the array are coupled together to form a common array bulk. A first, non-zero voltage is forced between the common subarray source and the common array bulk for a first subarray that is selected for an access operation. A second, non-zero voltage is forced between the common subarray source and the common array bulk for a second subarray that is not selected for an access operation. The second, non-zero voltage inhibits bit line leakage in the second subarray.

    摘要翻译: 实现了在非易失性存储单元中抑制位线泄漏的方法。 该方法包括提供包括源极和体积端子的非易失性存储器单元的阵列。 阵列包括多个子阵列。 每个子阵列中的所有非易失性单元的源耦合在一起以形成公共的子阵列源。 阵列中所有非易失性单元的容量被耦合在一起以形成共同的阵列体。 对于为访问操作选择的第一子阵列,第一个非零电压被强制在公共子阵列源和公共阵列块之间。 第二个非零电压被强制在公共子阵列源和公共阵列块之间,用于未被选择用于访问操作的第二子阵列。 第二个非零电压禁止第二个子阵列中的位线泄漏。

    MRAM device and fabrication method thereof
    9.
    发明授权
    MRAM device and fabrication method thereof 有权
    MRAM器件及其制造方法

    公开(公告)号:US08884386B2

    公开(公告)日:2014-11-11

    申请号:US13364881

    申请日:2012-02-02

    IPC分类号: H01L29/82

    摘要: A magnetoresistive random access memory (MRAM) device and a method of manufacture are provided. The MRAM device comprises a magnetic pinned layer, a compound GMR structure acting as a free layer, and a non-magnetic barrier layer separating the pinned and GMR layers. The barrier layer is provided to reduce the magnetic coupling of the free layer and GMR structure, as well as provide a resistive state (high or low) for retaining binary data (0 or 1) in the device. The GMR structure provides physical electrode connectivity for set/clear memory functionality which is separated from the physical electrode connectivity for the read functionality for the memory device.

    摘要翻译: 提供了一种磁阻随机存取存储器(MRAM)装置及其制造方法。 MRAM器件包括磁性钉扎层,用作自由层的复合GMR结构以及分离钉扎和GMR层的非磁性阻挡层。 提供阻挡层以减少自由层和GMR结构的磁耦合,以及提供用于在装置中保持二进制数据(0或1)的电阻状态(高或低)。 GMR结构提供了用于设置/清除存储器功能的物理电极连接,其与用于存储器件的读取功能的物理电极连接分开。