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    • 62. 发明授权
    • Method and apparatus for controlling the thickness of a selective epitaxial growth layer
    • 用于控制选择性外延生长层厚度的方法和装置
    • US07402207B1
    • 2008-07-22
    • US10839378
    • 2004-05-05
    • Paul R. BesserEric N. PatonWilliam G. En
    • Paul R. BesserEric N. PatonWilliam G. En
    • C30B21/04
    • C30B25/16G01B11/0616H01L21/67167H01L21/67207H01L21/67745Y10T117/1004Y10T117/1008
    • Methods and systems for permitting thickness control of the selective epitaxial growth (SEG) layer in a semiconductor manufacturing process, for example raised source/drain applications in CMOS technologies, are presented. These methods and systems provide the capability to measure the thickness of an SEG film in-situ utilizing optical ellipsometry equipment during or after SEG layer growth, prior to removing the wafer from the SEG growth tool. Optical ellipsometry equipment can be integrated into the SEG platform and control software, thus providing automated process control (APC) capability for SEG thickness. The integration of the ellipsometry equipment may be varied, dependent upon the needs of the fabrication facility, e.g., integration to provide ellipsometer monitoring of a single process tool, or multiple tool monitoring, among other configurations.
    • 提出了在半导体制造工艺中允许厚度控制选择性外延生长(SEG)层的方法和系统,例如CMOS技术中的升高的源/漏应用。 这些方法和系统提供了在从SEG生长工具移除晶片之前在SEG层生长期间或之后使用光学椭偏仪设备原位测量SEG膜的厚度的能力。 光学椭圆测量设备可以集成到SEG平台和控制软件中,从而为SEG厚度提供自动化过程控制(APC)能力。 椭圆测量设备的集成可以根据制造设施的需要而变化,例如集成以提供单个处理工具的椭偏仪监控,或者多个工具监视以及其他配置。