N-channel MOSFETs comprising dual stressors, and methods for forming the same
    23.
    发明授权
    N-channel MOSFETs comprising dual stressors, and methods for forming the same 有权
    包含双重应力的N沟道MOSFET及其形成方法

    公开(公告)号:US07279758B1

    公开(公告)日:2007-10-09

    申请号:US11420047

    申请日:2006-05-24

    摘要: The present invention relates to a semiconductor device including at least one n-channel field effect transistor (n-FET). Specifically, the n-FET includes first and second patterned stressor layers that both contain a carbon-substituted and tensilely stressed single crystal semiconductor. The first patterned stressor layer has a first carbon concentration and is located in source and drain (S/D) extension regions of the n-FET at a first depth. The second patterned stressor layer has a second, higher carbon concentration and is located in S/D regions of the n-FET at a second, deeper depth. Such an n-FET with the first and second patterned stressor layers of different carbon concentration and different depths provide improved stress profile for enhancing electron mobility in the channel region of the n-FET.

    摘要翻译: 本发明涉及包括至少一个n沟道场效应晶体管(n-FET)的半导体器件。 具体地说,n-FET包括均包含碳取代和拉伸应力单晶半导体的第一和第二图案应力层。 第一图案应力层具有第一碳浓度并且位于第一深度处的n-FET的源极和漏极(S / D)延伸区域中。 第二图案应力层具有第二较高的碳浓度,并且位于第二较深深度处的n-FET的S / D区中。 这种具有不同碳浓度和不同深度的第一和第二图案应力层的n-FET提供了改善的应力分布,用于增强n-FET的沟道区域中的电子迁移率。

    Measurement of CMOS device channel strain by X-ray diffraction
    30.
    发明授权
    Measurement of CMOS device channel strain by X-ray diffraction 失效
    通过X射线衍射测量CMOS器件通道应变

    公开(公告)号:US08716037B2

    公开(公告)日:2014-05-06

    申请号:US12967323

    申请日:2010-12-14

    IPC分类号: G01R31/26 H01L21/66

    摘要: A direct measurement of lattice spacing by X-ray diffraction is performed on a periodic array of unit structures provided on a substrate including semiconductor devices. Each unit structure includes a single crystalline strained material region and at least one stress-generating material region. For example, the single crystalline strained material region may be a structure simulating a channel of a field effect transistor, and the at least one stress-generating material region may be a single crystalline semiconductor region in epitaxial alignment with the single crystalline strained material region. The direct measurement can be performed in-situ at various processing states to provide in-line monitoring of the strain in field effect transistors in actual semiconductor devices.

    摘要翻译: 在包括半导体器件的衬底上提供的单元结构的周期性阵列上进行通过X射线衍射的晶格间距的直接测量。 每个单位结构包括单晶应变材料区域和至少一个应力产生材料区域。 例如,单晶应变材料区域可以是模拟场效应晶体管的沟道的结构,并且所述至少一个应力产生材料区域可以是与单晶应变材料区域外延对准的单晶半导体区域。 可以在各种处理状态下原位执行直接测量,以提供在实际半导体器件中场效应晶体管中的应变的在线监测。