Measuring strain of epitaxial films using micro x-ray diffraction for in-line metrology
    31.
    发明授权
    Measuring strain of epitaxial films using micro x-ray diffraction for in-line metrology 失效
    使用微X射线衍射测量外延膜的测量应变

    公开(公告)号:US07769134B1

    公开(公告)日:2010-08-03

    申请号:US12372104

    申请日:2009-02-17

    IPC分类号: G01N23/20

    CPC分类号: G01N23/20 G01N2223/6116

    摘要: In a method for use of x-ray diffraction to measure the strain on the top silicon germanium layer of an SOI substrate, the location of the peak diffraction area of an upper silicon layer of the SOI substrate is determined by first determining the peak diffraction area of the upper silicon layer on a reference pad (where the SOI thickness is about 700-900 Angstroms) within a die formed on a semiconductor wafer. The x-ray beam then moves to that location on the pad of interest to be measured and begins the XRD scan on the pad of interest to ultimately determine the strain of the top silicon germanium layer of the pad of interest.

    摘要翻译: 在使用x射线衍射测量SOI衬底的顶部硅锗层上的应变的方法中,SOI衬底的上硅层的峰值衍射面积的位置是通过首先确定峰值衍射面积 在半导体晶片上形成的晶片内的参考焊盘(其中SOI厚度为约700-900埃)上硅层。 然后X射线束移动到要测量的感兴趣的焊盘上的该位置,并在感兴趣的焊盘上开始XRD扫描,以最终确定感兴趣焊盘的顶部硅锗层的应变。

    N-channel MOSFETs comprising dual stressors, and methods for forming the same
    34.
    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:US07473608B2

    公开(公告)日:2009-01-06

    申请号:US11840795

    申请日:2007-08-17

    IPC分类号: H01L21/22

    摘要: The present invention relates to a semiconductor device comprising at least one n-channel field effect transistor (n-FET). Specifically, the n-FET comprises 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包括第一和第二图案应力层,它们都包含碳取代和拉伸应力单晶半导体。 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。

    N-CHANNEL MOSFETS COMPRISING DUAL STRESSORS, AND METHODS FOR FORMING THE SAME
    35.
    发明申请
    N-CHANNEL MOSFETS COMPRISING DUAL STRESSORS, AND METHODS FOR FORMING THE SAME 有权
    包含双重压力机的N沟道MOSFET及其形成方法

    公开(公告)号:US20070281413A1

    公开(公告)日:2007-12-06

    申请号:US11840795

    申请日:2007-08-17

    IPC分类号: H01L21/8238

    摘要: The present invention relates to a semiconductor device comprising at least one n-channel field effect transistor (n-FET). Specifically, the n-FET comprises 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包括第一和第二图案应力层,它们都包含碳取代和拉伸应力单晶半导体。 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。