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    • 4. 发明授权
    • Implementation of temperature-dependent phase switch layer for improved temperature uniformity during annealing
    • 实现温度相关的开关层,以提高退火过程中的温度均匀性
    • US08324011B2
    • 2012-12-04
    • US11853156
    • 2007-09-11
    • Chyiu Hyia PoonAlex SeeMei Sheng Zhou
    • Chyiu Hyia PoonAlex SeeMei Sheng Zhou
    • H01L21/00
    • H01L21/324H01L21/268
    • The present invention provides a method of annealing a semiconductor by applying a temperature-dependant phase switch layer to a semiconductor structure. The temperature-dependant phase switch layer changes phase from amorphous to crystalline at a predetermined temperature. When the semiconductor structure is annealed, electromagnetic radiation passes through the temperature-dependant phase switch layer before reaching the semiconductor structure. When a desired annealing temperature is reached the temperature-dependant phase switch layer substantially blocks the electromagnetic radiation from reaching the semiconductor structure. As a result, the semiconductor is annealed at a consistent temperature across the wafer. The temperature at which the temperature-dependant phase switch layer changes phase can be controlled by an ion implantation process.
    • 本发明提供了一种通过向半导体结构施加温度相关的相位开关层来退火半导体的方法。 温度相关的相位开关层在预定温度下将相从非晶形变化为结晶。 当半导体结构退火时,电磁辐射在到达半导体结构之前通过温度相关的相位开关层。 当达到期望的退火温度时,温度相关的相位开关层基本上阻止电磁辐射到达半导体结构。 结果,半导体在晶片上以一致的温度退火。 温度相关的相位开关层改变相位的温度可以通过离子注入工艺来控制。
    • 7. 发明授权
    • Multi-variable regression for metrology
    • 计量学的多元回归
    • US07966142B2
    • 2011-06-21
    • US12103690
    • 2008-04-15
    • Wen Zhan ZhouZheng ZouJasper GohMei Sheng Zhou
    • Wen Zhan ZhouZheng ZouJasper GohMei Sheng Zhou
    • G01D21/00G06F19/00
    • H01L22/12G01B21/045G01B2210/56H01L22/20
    • A method for assessing metrology tool accuracy is described. Multi-variable regression is used to define the accuracy of a metrology tool such that the interaction between different measurement parameters is taken into account. A metrology tool under test (MTUT) and a reference metrology tool (RMT) are used to measure a set of test profiles. The MTUT measures the test profiles to generate a MTUT data set for a first measurement parameter. The RMT measures the test profiles to generate RMT data sets for the first measurement parameter, and at least a second measurement parameter. Multi-variable regression is then performed to generate a best-fit plane for the data sets. The coefficient of determination (R2 value) represents the accuracy index of the MTUT.
    • 描述了一种评估测量工具精度的方法。 多变量回归用于定义计量工具的准确性,以便考虑不同测量参数之间的相互作用。 被测量的测量工具(MTUT)和参考计量工具(RMT)用于测量一组测试曲线。 MTUT测量测试配置文件,以生成第一个测量参数的MTUT数据集。 RMT测量测试配置文件以生成用于第一测量参数的RMT数据集和至少第二测量参数。 然后执行多变量回归以为数据集生成最佳拟合平面。 测定系数(R2值)表示MTUT的精度指标。