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    • 81. 发明授权
    • Creating a library for measuring a damaged structure formed on a wafer using optical metrology
    • 使用光学测量法创建用于测量在晶圆上形成的损坏结构的库
    • US07576851B2
    • 2009-08-18
    • US11395636
    • 2006-03-30
    • Kevin LallyMerritt FunkRadha Sundararajan
    • Kevin LallyMerritt FunkRadha Sundararajan
    • G01P3/36
    • G01N21/95607
    • A method of creating a library for measuring a plurality of damaged structures formed on a semiconductor wafer using optical metrology includes directing an incident beam on a first damaged structure. The first damaged structure was formed by modifying at least one process parameter in a dual damascene procedure. A diffracted beam is received from the first damaged structure. A measured diffraction signal is obtained based on the received diffracted beam. A first simulated diffraction signal is calculated. The first simulated diffraction signal corresponds to a hypothetical profile of the first damaged structure. The hypothetical profile includes an undamaged dielectric portion and a damaged dielectric portion. The measured diffraction signal is compared to the first simulated diffraction signal. If the measured diffraction signal and the first simulated diffraction signal match within a matching criterion, then the first simulated diffraction signal, the hypothetical profile of the first damaged structure, and an amount of dielectric damage corresponding to the damaged dielectric portion of the hypothetical profile are stored in a library.
    • 使用光学测量法创建用于测量形成在半导体晶片上的多个损坏结构的库的方法包括将入射光束引导到第一损坏结构上。 通过在双镶嵌程序中修改至少一个工艺参数来形成第一个损坏的结构。 从第一损坏结构接收衍射光束。 基于接收的衍射光束获得测量的衍射信号。 计算第一个模拟衍射信号。 第一模拟衍射信号对应于第一损坏结构的假想轮廓。 假想轮廓包括未损坏的电介质部分和损坏的电介质部分。 将测量的衍射信号与第一模拟衍射信号进行比较。 如果测量的衍射信号和第一模拟衍射信号在匹配标准内匹配,则第一模拟衍射信号,第一损坏结构的假想轮廓和对应于假想轮廓损坏的介质部分的介电损伤量是 存储在库中。
    • 86. 发明申请
    • Dynamic metrology sampling with wafer uniformity control
    • 具有晶圆均匀性控制的动态计量采样
    • US20070238201A1
    • 2007-10-11
    • US11390415
    • 2006-03-28
    • Merritt FunkRadha SundararajanDaniel PragerWesley Natzle
    • Merritt FunkRadha SundararajanDaniel PragerWesley Natzle
    • H01L21/66
    • H01L22/12
    • A method of processing a wafer is presented that includes creating a pre-processing measurement map using measured metrology data for the wafer including metrology data for at least one isolated structure on the wafer, metrology data for at least one nested structure on the wafer, bi-layer mask data, and BARC layer data. At least one pre-processing prediction map is calculated for the wafer. A pre-processing confidence map is calculated for the wafer. The pre-processing confidence map includes a set of confidence data for the plurality of dies on the wafer. A prioritized measurement site is determined when the confidence data for one or more dies is not within the confidence limits. A new measurement recipe that includes the prioritized measurement site is then created.
    • 提出了一种处理晶片的方法,其包括使用测量的晶片的测量数据创建预处理测量图,包括晶片上的至少一个隔离结构的测量数据,晶片上的至少一个嵌套结构的度量数据,bi 层掩模数据和BARC层数据。 为晶片计算至少一个预处理预测图。 计算晶片的预处理置信图。 预处理置信图包括晶片上的多个管芯的一组置信数据。 当一个或多个管芯的置信度数据不在置信限度内时,确定优先测量点。 然后创建包含优先测量站点的新测量配方。
    • 87. 发明申请
    • Creating a library for measuring a damaged structure formed on a wafer using optical metrology
    • 使用光学测量法创建用于测量在晶圆上形成的损坏结构的库
    • US20070233404A1
    • 2007-10-04
    • US11395636
    • 2006-03-30
    • Kevin LallyMerritt FunkRadha Sundararajan
    • Kevin LallyMerritt FunkRadha Sundararajan
    • G06F19/00G01N21/00
    • G01N21/95607
    • A method of creating a library for measuring a plurality of damaged structures formed on a semiconductor wafer using optical metrology includes directing an incident beam on a first damaged structure. The first damaged structure was formed by modifying at least one process parameter in a dual damascene procedure. A diffracted beam is received from the first damaged structure. A measured diffraction signal is obtained based on the received diffracted beam. A first simulated diffraction signal is calculated. The first simulated diffraction signal corresponds to a hypothetical profile of the first damaged structure. The hypothetical profile includes an undamaged dielectric portion and a damaged dielectric portion. The measured diffraction signal is compared to the first simulated diffraction signal. If the measured diffraction signal and the first simulated diffraction signal match within a matching criterion, then the first simulated diffraction signal, the hypothetical profile of the first damaged structure, and an amount of dielectric damage corresponding to the damaged dielectric portion of the hypothetical profile are stored in a library.
    • 使用光学测量法创建用于测量形成在半导体晶片上的多个损坏结构的库的方法包括将入射光束引导到第一损坏结构上。 通过在双镶嵌程序中修改至少一个工艺参数来形成第一个损坏的结构。 从第一损坏结构接收衍射光束。 基于接收的衍射光束获得测量的衍射信号。 计算第一个模拟衍射信号。 第一模拟衍射信号对应于第一损坏结构的假想轮廓。 假想轮廓包括未损坏的电介质部分和损坏的电介质部分。 将测量的衍射信号与第一模拟衍射信号进行比较。 如果测量的衍射信号和第一模拟衍射信号在匹配标准内匹配,则第一模拟衍射信号,第一损坏结构的假想轮廓和对应于假想轮廓损坏的介质部分的介电损伤量是 存储在库中。
    • 88. 发明申请
    • Measuring a damaged structure formed on a wafer using optical metrology
    • 使用光学测量法测量在晶片上形成的损坏结构
    • US20070229807A1
    • 2007-10-04
    • US11396214
    • 2006-03-30
    • Kevin LallyMerritt FunkRadha Sundararajan
    • Kevin LallyMerritt FunkRadha Sundararajan
    • G01N21/00
    • G01N21/95607G01N21/4788G01N21/9501H01L22/12H01L2924/0002H01L2924/00
    • A method of measuring a damaged structure formed on a semiconductor wafer using optical metrology, the method includes obtaining a measured diffraction signal from a damaged periodic structure. A hypothetical profile of the damaged periodic structure is defined. The hypothetical profile having an undamaged portion, which corresponds to an undamaged area of a first material in the damaged periodic structure, and a damaged portion, which corresponds to a damaged area of the first material in the damaged periodic structure. The undamaged portion and the damaged portion have different properties associated with them. A simulated diffraction signal is calculated for the hypothetical damaged periodic structure using the hypothetical profile. The measured diffraction signal is compared to the simulated diffraction signal. If the measured diffraction signal and the simulated diffraction signal match within a matching criterion, then a damage amount for the damaged periodic structure is established based on the damaged portion of the hypothetical profile used to calculate the simulated diffraction signal.
    • 一种使用光学测量法测量在半导体晶片上形成的损坏结构的方法,该方法包括从损坏的周期性结构获得测量的衍射信号。 定义损坏的周期结构的假设剖面。 具有未损坏部分的假想轮廓,其对应于损坏的周期性结构中的第一材料的未损坏区域,以及损坏部分,其对应于损坏的周期性结构中的第一材料的损坏区域。 未损伤部分和损坏部分具有与它们相关联的不同性质。 使用假设曲线计算假设损坏的周期性结构的模拟衍射信号。 将测得的衍射信号与模拟衍射信号进行比较。 如果测量的衍射信号和模拟衍射信号在匹配标准内匹配,则基于用于计算模拟衍射信号的假想轮廓的损坏部分建立损坏的周期性结构的损伤量。