Method for protecting a wafer backside from etching damage
    1.
    发明授权
    Method for protecting a wafer backside from etching damage 有权
    用于保护晶片背面免受蚀刻损伤的方法

    公开(公告)号:US06777334B2

    公开(公告)日:2004-08-17

    申请号:US10190073

    申请日:2002-07-03

    IPC分类号: H01L21461

    摘要: A method for protecting a silicon semiconductor wafer backside surface for removing polymer containing residues from a wafer process surface including providing a silicon semiconductor wafer having a process surface and a backside surface said process surface including metal containing features said process surface at least partially covered with polymer containing residues and said backside surface including exposed silicon containing areas; forming an etching resistant oxide layer over the exposed silicon containing areas; and, subjecting the silicon semiconductor wafer to a series of cleaning steps including a wet etchant corrosive to the exposed silicon containing areas.

    摘要翻译: 一种用于保护硅半导体晶片背面的方法,用于从晶片工艺表面除去含有残留物的聚合物,包括提供具有工艺表面和背面的硅半导体晶片,所述工艺表面包括含有金属的特征,所述工艺表面至少部分地被聚合物覆盖 含有残留物和所述背面包括暴露的含硅区域; 在暴露的含硅区域上形成耐蚀刻氧化物层; 并且对硅半导体晶片进行一系列清洁步骤,包括对暴露的含硅区域具有腐蚀性的湿蚀刻剂。

    Controlling system for gate formation of semiconductor devices
    2.
    发明授权
    Controlling system for gate formation of semiconductor devices 有权
    半导体器件栅极形成控制系统

    公开(公告)号:US07588946B2

    公开(公告)日:2009-09-15

    申请号:US11188324

    申请日:2005-07-25

    IPC分类号: H01L21/00

    摘要: A method of controlling gate formation of semiconductor devices includes determining the correlation between the step heights of isolation structures and the over-etching time by measuring step heights of isolation structures, determining an over-etching time based on the step heights, and etching gates using the over-etching time. The method may include an after-etching-inspection to measure the gate profile and fine-tune the gate formation control. Within-wafer uniformity can also be improved by measuring the step height uniformity on a wafer and adjusting gate formation processes.

    摘要翻译: 控制半导体器件的栅极形成的方法包括通过测量隔离结构的阶跃高度来确定隔离结构的台阶高度与过蚀刻时间之间的相关性,基于台阶高度确定过蚀刻时间,以及使用 过蚀刻时间。 该方法可以包括蚀刻检查以测量栅极分布并微调栅极形成控制。 通过测量晶片上的台阶高度均匀性并调整栅极形成工艺,也可以提高晶片内均匀性。

    METHOD AND SYSTEM FOR IMPROVING WET CHEMICAL BATH PROCESS STABILITY AND PRODUCTIVITY IN SEMICONDUCTOR MANUFACTURING
    5.
    发明申请
    METHOD AND SYSTEM FOR IMPROVING WET CHEMICAL BATH PROCESS STABILITY AND PRODUCTIVITY IN SEMICONDUCTOR MANUFACTURING 有权
    用于改善半导体制造中的湿化学浴过程稳定性和生产率的方法和系统

    公开(公告)号:US20090087929A1

    公开(公告)日:2009-04-02

    申请号:US11963040

    申请日:2007-12-21

    IPC分类号: H01L21/66

    CPC分类号: H01L21/67086 H01L21/67253

    摘要: A chemical processing bath and system used in semiconductor manufacturing utilizes a dynamic spiking model that essentially constantly monitors chemical concentration in the processing bath and adds fresh chemical on a regular basis to maintain chemical concentrations at desirable levels. Etch rates and etch selectivities are maintained at desirable levels and contamination from undesirable precipitation is avoided. The system and method automatically compare concentration levels to a plurality of control limits associated with various technologies and identify the technology or technologies that may undergo processing.

    摘要翻译: 用于半导体制造的化学处理浴和系统利用动态加标模型,其基本上不断监测处理槽中的化学浓度,并定期添加新鲜化学品,以将化学浓度维持在所需水平。 蚀刻速率和蚀刻选择性保持在所需的水平,避免了不期望的沉淀的污染。 系统和方法自动将浓度水平与与各种技术相关联的多个控制限制进行比较,并识别可能经历处理的技术或技术。

    Feature dimension measurement
    8.
    发明授权
    Feature dimension measurement 有权
    特征尺寸测量

    公开(公告)号:US08049213B2

    公开(公告)日:2011-11-01

    申请号:US11958942

    申请日:2007-12-18

    IPC分类号: H01L21/66 H01L23/544

    CPC分类号: H01L22/14 H01L22/12 H01L22/20

    摘要: A method of measuring dimensional characteristics includes providing a substrate and forming a reflective layer over the substrate. A dielectric layer is then formed over the reflective layer. The dielectric layer includes a grating pattern and a resistivity test line inset in a transparent region. Radiation is then directed onto the dielectric layer so that some of the radiation is transmitted through the transparent region to the reflective layer. A radiation pattern is then detected from the radiation reflected and scattered by the metal grating pattern. The radiation pattern is analyzed to determine a first dimensional information. Then the resistance of the resistivity test line is measured, and that resistance is analyzed to determine a second dimensional information. The first and second dimensional informations are then compared.

    摘要翻译: 测量尺寸特性的方法包括提供衬底并在衬底上形成反射层。 然后在反射层上形成电介质层。 电介质层包括在透明区域内插入的光栅图案和电阻率测试线。 然后将辐射引导到电介质层上,使得一些辐射透过透明区域到达反射层。 然后从由金属光栅图案反射和散射的辐射中检测出辐射图。 分析辐射图以确定第一维信息。 然后测量电阻率测试线的电阻,并分析该电阻以确定第二维信息。 然后比较第一和第二维信息。

    Method and system for improving wet chemical bath process stability and productivity in semiconductor manufacturing
    9.
    发明授权
    Method and system for improving wet chemical bath process stability and productivity in semiconductor manufacturing 有权
    改善半导体制造中湿化学浴工艺稳定性和生产率的方法和系统

    公开(公告)号:US07910014B2

    公开(公告)日:2011-03-22

    申请号:US11963040

    申请日:2007-12-21

    IPC分类号: C03C15/00 C03C25/68

    CPC分类号: H01L21/67086 H01L21/67253

    摘要: A chemical processing bath and system used in semiconductor manufacturing utilizes a dynamic spiking model that essentially constantly monitors chemical concentration in the processing bath and adds fresh chemical on a regular basis to maintain chemical concentrations at desirable levels. Etch rates and etch selectivities are maintained at desirable levels and contamination from undesirable precipitation is avoided. The system and method automatically compare concentration levels to a plurality of control limits associated with various technologies and identify the technology or technologies that may undergo processing.

    摘要翻译: 用于半导体制造的化学处理浴和系统利用动态加标模型,其基本上不断监测处理槽中的化学浓度,并定期添加新鲜化学品,以将化学浓度维持在所需水平。 蚀刻速率和蚀刻选择性保持在所需的水平,避免了不期望的沉淀的污染。 系统和方法自动将浓度水平与与各种技术相关联的多个控制限制进行比较,并识别可能经历处理的技术或技术。

    Feature Dimension Measurement
    10.
    发明申请
    Feature Dimension Measurement 有权
    特征尺寸测量

    公开(公告)号:US20090152545A1

    公开(公告)日:2009-06-18

    申请号:US11958942

    申请日:2007-12-18

    IPC分类号: H01L23/58 H01L21/66

    CPC分类号: H01L22/14 H01L22/12 H01L22/20

    摘要: A method of measuring dimensional characteristics includes providing a substrate and forming a reflective layer over the substrate. A dielectric layer is then formed over the reflective layer. The dielectric layer includes a grating pattern and a resistivity test line inset in a transparent region. Radiation is then directed onto the dielectric layer so that some of the radiation is transmitted through the transparent region to the reflective layer. A radiation pattern is then detected from the radiation reflected and scattered by the metal grating pattern. The radiation pattern is analyzed to determine a first dimensional information. Then the resistance of the resistivity test line is measured, and that resistance is analyzed to determine a second dimensional information. The first and second dimensional informations are then compared.

    摘要翻译: 测量尺寸特性的方法包括提供衬底并在衬底上形成反射层。 然后在反射层上形成电介质层。 电介质层包括在透明区域内插入的光栅图案和电阻率测试线。 然后将辐射引导到电介质层上,使得一些辐射透过透明区域到达反射层。 然后从由金属光栅图案反射和散射的辐射中检测出辐射图。 分析辐射图以确定第一维信息。 然后测量电阻率测试线的电阻,并分析该电阻以确定第二维信息。 然后比较第一和第二维信息。