会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 17. 发明授权
    • In-situ film thickness measurement using spectral interference at grazing incidence
    • 原位薄膜厚度测量采用光谱干涉进行放牧
    • US06888639B2
    • 2005-05-03
    • US09963048
    • 2001-09-24
    • Andreas GoebelMoshe SarfatySebastien Raoux
    • Andreas GoebelMoshe SarfatySebastien Raoux
    • G01B11/06G01N21/84G01N21/95H01L21/66G01B11/02G01B9/02
    • H01L22/26G01B11/0675G01N21/8422G01N21/9501H01L22/12
    • A method and system using spectral interference of light from plasma emissions collected at near grazing incidence to in-situ monitor and control the film thickness of a non-opaque film. Embodiments of this invention are particularly useful to all substrate processing chambers equipped to form an in-situ plasma within the chamber and which are used to deposit or etch non-opaque films. One embodiment of the method of the present invention forms a plasma within a substrate processing chamber to deposit a non-opaque film on a wafer substrate within the chamber. During the plasma deposition process, a plurality of wavelengths of radiation including those reflected from the top and bottom layer of the film being deposited upon a wafer surface are collected through an existing viewport, and conveyed to a spectrometer for measurements via an optical fiber attached near this viewport. These measurements are analyzed to determine the film's thickness. An alternate embodiment of the method of the present invention uses an interference filter to confine the spectral composition of the plasma emissions to an emission at a narrow wavelength interval and a photodiode to detect the intensity of the emission.
    • 一种方法和系统,利用近场放射采集的等离子体发射光的光谱干涉进行原位监测和控制非不透明膜的膜厚度。 本发明的实施例对于所有衬底处理腔室特别有用,所述衬底处理腔室在室内形成原位等离子体,并用于沉积或蚀刻非不透明膜。 本发明方法的一个实施例在衬底处理室内形成等离子体,以将非不透明膜沉积在腔室内的晶片衬底上。 在等离子体沉积过程中,包括从沉积在晶片表面上的膜的顶层和底层反射的多个辐射波长通过现有的视口被收集,并通过附近的光纤被传送到光谱仪进行测量 这个视口。 分析这些测量结果以确定膜的厚度。 本发明方法的替代实施例使用干涉滤波器来限制等离子体发射的光谱组成与窄波长间隔的发射和光电二极管以检测发射的强度。