Method of fabricating shallow trench isolation structure and microelectronic device having the structure
    1.
    发明申请
    Method of fabricating shallow trench isolation structure and microelectronic device having the structure 审中-公开
    制造浅沟槽隔离结构的方法和具有该结构的微电子器件

    公开(公告)号:US20050023634A1

    公开(公告)日:2005-02-03

    申请号:US10862336

    申请日:2004-06-08

    CPC分类号: H01L21/763 H01L21/76224

    摘要: Provided is a method of fabricating a shallow trench isolation (STI) structure having a high aspect ratio and improved insulating properties. The exemplary method includes filling a shallow trench isolation region opening with an undoped polysilicon layer, removing an upper portion of the undoped polysilicon layer to form a second opening having a reduced aspect ratio relative to the original opening and filling the second opening with an insulating material to complete the STI structure. Additional protective layers including silicon oxide, silicon nitride and/or a capping layer may be provided on the sidewalls of the opening before depositing the undoped polysilicon.

    摘要翻译: 提供一种制造具有高纵横比和改进的绝缘性能的浅沟槽隔离(STI)结构的方法。 该示例性方法包括填充具有未掺杂多晶硅层的浅沟槽隔离区开口,去除未掺杂多晶硅层的上部,以形成相对于原始开口具有减小的纵横比的第二开口,并用绝缘材料填充第二开口 完成STI结构。 在沉积未掺杂的多晶硅之前,可以在开口的侧壁上提供包括氧化硅,氮化硅和/或覆盖层的附加保护层。

    Etching method for manufacturing semiconductor device
    2.
    发明授权
    Etching method for manufacturing semiconductor device 失效
    蚀刻方法制造半导体器件

    公开(公告)号:US07338610B2

    公开(公告)日:2008-03-04

    申请号:US10763356

    申请日:2004-01-23

    IPC分类号: H01L21/302 H01L21/461

    CPC分类号: H01L28/91 H01L21/31111

    摘要: A wafer having a dielectric layer and an electrode partially protruding from the top surface of the dielectric layer is provided. The dielectric layer is etched with a chemical solution such as LAL. Prior to etching, the protruding portion of the electrode is removed or reduced to prevent any bubbles included in the chemical solution from adhering to the electrode. Thus, the chemical solution can etch the dielectric layers without being blocked by any bubbles included in a chemical solution.

    摘要翻译: 提供具有电介质层和从电介质层的顶表面部分突出的电极的晶片。 用诸如LAL的化学溶液蚀刻电介质层。 在蚀刻之前,电极的突出部分被去除或减少,以防止化学溶液中包含的任何气泡粘附到电极上。 因此,化学溶液可以蚀刻介电层而不被包含在化学溶液中的任何气泡所阻挡。

    Etching method for manufacturing semiconductor device
    3.
    发明申请
    Etching method for manufacturing semiconductor device 失效
    蚀刻方法制造半导体器件

    公开(公告)号:US20050064674A1

    公开(公告)日:2005-03-24

    申请号:US10763356

    申请日:2004-01-23

    CPC分类号: H01L28/91 H01L21/31111

    摘要: A wafer having a dielectric layer and an electrode partially protruding from the top surface of the dielectric layer is provided. The dielectric layer is etched with a chemical solution such as LAL. Prior to etching, the protruding portion of the electrode is removed or reduced to prevent any bubbles included in the chemical solution from adhering to the electrode. Thus, the chemical solution can etch the dielectric layers without being blocked by any bubbles included in a chemical solution.

    摘要翻译: 提供具有电介质层和从电介质层的顶表面部分突出的电极的晶片。 用诸如LAL的化学溶液蚀刻电介质层。 在蚀刻之前,电极的突出部分被去除或减少,以防止化学溶液中包含的任何气泡粘附到电极上。 因此,化学溶液可以蚀刻介电层而不被包含在化学溶液中的任何气泡所阻挡。

    Etching method for manufacturing semiconductor device
    4.
    发明申请
    Etching method for manufacturing semiconductor device 审中-公开
    蚀刻方法制造半导体器件

    公开(公告)号:US20050026452A1

    公开(公告)日:2005-02-03

    申请号:US10855313

    申请日:2004-05-26

    摘要: A wafer having a dielectric layer and an electrode partially protruding from the top surface of the dielectric layer is provided. An etchant or chemical solution is applied to the dielectric layer and bubbles in the etchant are prevented from adhering to the electrode. In one embodiment, prior to etching, the protruding portion is covered with a buffer layer to prevent bubbles in the etchant from adhering to the electrode. Thus, the etchant can etch the dielectric layers without being blocked by bubbles included therein.

    摘要翻译: 提供具有电介质层和从电介质层的顶表面部分突出的电极的晶片。 将蚀刻剂或化学溶液施加到电介质层,并且防止蚀刻剂中的气泡粘附到电极上。 在一个实施例中,在蚀刻之前,突出部分被缓冲层覆盖,以防止蚀刻剂中的气泡粘附到电极上。 因此,蚀刻剂可以蚀刻电介质层而不被其中包含的气泡阻挡。

    Methods of forming non-volatile memory devices having floating gate electrodes
    9.
    发明授权
    Methods of forming non-volatile memory devices having floating gate electrodes 失效
    形成具有浮动栅电极的非易失性存储器件的方法

    公开(公告)号:US07445997B2

    公开(公告)日:2008-11-04

    申请号:US11103069

    申请日:2005-04-11

    IPC分类号: H01L21/336

    CPC分类号: H01L27/115 H01L27/11521

    摘要: Methods of forming non-volatile memory devices include the steps of forming a semiconductor substrate having first and second floating gate electrodes thereon and an electrically insulating region extending between the first and second floating gate electrodes. A step is then performed to etch back the electrically insulating region to expose upper corners of the first and second floating gate electrodes. Another etching step is then performed. This etching step includes exposing upper surfaces and the exposed upper corners of the first and second floating gate electrodes to an etchant that rounds the exposed upper corners of the first and second floating gate electrodes. The step of etching back the electrically insulating region includes etching back the electrically insulating region to expose sidewalls of the first and second floating gate electrodes having heights ranging from about 30 Å to about 200 Å. The step of exposing the upper corners of the first and second floating gate electrodes to an etchant is followed by the step of etching back the electrically insulating region to expose entire sidewalls of the first and second floating gate electrodes.

    摘要翻译: 形成非易失性存储器件的方法包括以下步骤:在其上形成具有第一和第二浮栅的半导体衬底和在第一和第二浮栅之间延伸的电绝缘区。 然后执行步骤以回蚀电绝缘区域以暴露第一和第二浮栅电极的上角。 然后执行另一蚀刻步骤。 该蚀刻步骤包括将第一和第二浮栅电极的上表面和暴露的上角露出到蚀刻剂,该蚀刻剂围绕第一和第二浮栅的暴露的上角。 蚀刻回电绝缘区域的步骤包括蚀刻电绝缘区域以暴露第一和第二浮栅电极的侧壁,其高度范围为约至约200。 将第一和第二浮栅的上角暴露于蚀刻剂的步骤之后是蚀刻电绝缘区以暴露第一和第二浮栅的整个侧壁的步骤。

    Methods of forming non-volatile memory devices having floating gate electrodes
    10.
    发明申请
    Methods of forming non-volatile memory devices having floating gate electrodes 失效
    形成具有浮动栅电极的非易失性存储器件的方法

    公开(公告)号:US20050255654A1

    公开(公告)日:2005-11-17

    申请号:US11103069

    申请日:2005-04-11

    CPC分类号: H01L27/115 H01L27/11521

    摘要: Methods of forming non-volatile memory devices include the steps of forming a semiconductor substrate having first and second floating gate electrodes thereon and an electrically insulating region extending between the first and second floating gate electrodes. A step is then performed to etch back the electrically insulating region to expose upper corners of the first and second floating gate electrodes. Another etching step is then performed. This etching step includes exposing upper surfaces and the exposed upper corners of the first and second floating gate electrodes to an etchant that rounds the exposed upper corners of the first and second floating gate electrodes. The step of etching back the electrically insulating region includes etching back the electrically insulating region to expose sidewalls of the first and second floating gate electrodes having heights ranging from about 30 Å to about 200 Å. The step of exposing the upper corners of the first and second floating gate electrodes to an etchant is followed by the step of etching back the electrically insulating region to expose entire sidewalls of the first and second floating gate electrodes.

    摘要翻译: 形成非易失性存储器件的方法包括以下步骤:在其上形成具有第一和第二浮栅的半导体衬底和在第一和第二浮栅之间延伸的电绝缘区。 然后执行步骤以回蚀电绝缘区域以暴露第一和第二浮栅电极的上角。 然后执行另一蚀刻步骤。 该蚀刻步骤包括将第一和第二浮栅电极的上表面和暴露的上角露出到蚀刻剂,该蚀刻剂围绕第一和第二浮栅的暴露的上角。 蚀刻回电绝缘区域的步骤包括蚀刻电绝缘区域以暴露第一和第二浮栅电极的侧壁,其高度范围为约至约200。 将第一和第二浮栅的上角暴露于蚀刻剂的步骤之后是蚀刻电绝缘区以暴露第一和第二浮栅的整个侧壁的步骤。