Patterned dummy wafers loading in batch type CVD
    5.
    发明授权
    Patterned dummy wafers loading in batch type CVD 有权
    图案化的假晶片以分批式CVD方式装载

    公开(公告)号:US08809206B2

    公开(公告)日:2014-08-19

    申请号:US13022517

    申请日:2011-02-07

    IPC分类号: H01L21/31

    摘要: A method for semiconductor device fabrication is provided. The present invention is directed towards using at least one patterned dummy wafer along with one or more product wafers in a film deposition system to create a sidewall layer thickness variation that is substantially uniform across all product wafers. The at least one patterned dummy wafer may have a high density patterned substrate surface with a topography that is different from or substantially similar to a topography of the one or more product wafers. Furthermore, in a batch type Chemical Vapor Deposition (CVD) system, the at least one patterned dummy wafer may be placed near a gas inlet of the CVD system. At least one patterned dummy wafer may be placed near an exhaust of the CVD system. Additionally, the patterned dummy wafers may be reusable in subsequent film deposition processes.

    摘要翻译: 提供了半导体器件制造方法。 本发明涉及在膜沉积系统中使用至少一个图案化虚设晶圆以及一个或多个产品晶片,以产生在所有产品晶片上基本均匀的侧壁层厚度变化。 至少一个图案化的虚设晶片可以具有高密度图案化的衬底表面,其具有不同于或基本类似于一个或多个产品晶片的形貌的形貌。 此外,在间歇式化学气相沉积(CVD)系统中,至少一个图案化的虚设晶片可以放置在CVD系统的气体入口附近。 至少一个图案化的虚设晶片可以放置在CVD系统的排气附近。 此外,图案化的虚拟晶片可以在随后的成膜工艺中可重复使用。

    PATTERNED DUMMY WAFERS LOADING IN BATCH TYPE CVD
    6.
    发明申请
    PATTERNED DUMMY WAFERS LOADING IN BATCH TYPE CVD 有权
    刻板式CVD中加载的图案式加湿器

    公开(公告)号:US20120202355A1

    公开(公告)日:2012-08-09

    申请号:US13022517

    申请日:2011-02-07

    IPC分类号: H01L21/465 H01L21/46

    摘要: A method for semiconductor device fabrication is provided. Embodiments of the present invention are directed towards using at least one patterned dummy wafer along with one or more product wafers in a film deposition system to create a sidewall layer thickness variation that is substantially uniform across all product wafers. The at least one patterned dummy wafer may have a high density patterned substrate surface with a topography that is different from or substantially similar to a topography of the one or more product wafers. Furthermore, in a batch type Chemical Vapor Deposition (CVD) system, the at least one patterned dummy wafer may be placed near a gas inlet of the CVD system. In another embodiment, at least one patterned dummy wafer may be placed near an exhaust of the CVD system. Additionally, the patterned dummy wafers may be reusable in subsequent film deposition processes.

    摘要翻译: 提供了半导体器件制造方法。 本发明的实施例涉及在膜沉积系统中使用至少一个图案化虚设晶圆以及一个或多个产品晶片,以产生在所有产品晶片上基本均匀的侧壁层厚度变化。 至少一个图案化的虚设晶片可以具有高密度图案化的衬底表面,其具有不同于或基本类似于一个或多个产品晶片的形貌的形貌。 此外,在间歇式化学气相沉积(CVD)系统中,至少一个图案化的虚设晶片可以放置在CVD系统的气体入口附近。 在另一个实施例中,至少一个图案化虚设晶片可以放置在CVD系统的排气附近。 此外,图案化的虚拟晶片可以在随后的成膜工艺中可重复使用。

    Methods for fabricating flash memory devices
    8.
    发明授权
    Methods for fabricating flash memory devices 有权
    制造闪存设备的方法

    公开(公告)号:US07416940B1

    公开(公告)日:2008-08-26

    申请号:US11418352

    申请日:2006-05-03

    IPC分类号: H01L21/336

    CPC分类号: H01L27/115 H01L27/11568

    摘要: Methods for fabricating a flash memory device are provided. A method comprises forming a plurality of gate stacks overlying a substrate. Each gate stack comprises a charge trapping layer and a control gate. The control gate is a first distance from the substrate. Adjacent gate stacks are a second distance apart. A cell spacer material layer is deposited and is etched to form a spacer about sidewalls of each gate stack. A source/drain impurity doped region is formed adjacent a first gate stack and a last gate stack. The first distance and the second distance are such that, when a voltage is applied to a gate stack during a READ operation, a fringing field is created between the control gate of the gate stack and the substrate and is sufficient to invert a portion of the substrate between the gate stack and an adjacent gate stack.

    摘要翻译: 提供了制造闪速存储器件的方法。 一种方法包括形成覆盖衬底的多个栅叠层。 每个栅极堆叠包括电荷捕获层和控制栅极。 控制栅极是离基板的第一距离。 相邻的门堆叠是第二个距离。 沉积电池间隔物材料层并被蚀刻以形成围绕每个栅极叠层的侧壁的间隔物。 在第一栅极堆叠和最后一个栅极堆叠附近形成源极/漏极杂质掺杂区域。 第一距离和第二距离使得当在读取操作期间将电压施加到栅极堆叠时,在栅极堆叠的控制栅极和衬底之间产生边缘场,并且足以将一部分 栅极堆叠和相邻栅极堆叠之间的衬底。