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公开(公告)号:US07579590B2
公开(公告)日:2009-08-25
申请号:US11888576
申请日:2007-08-01
IPC分类号: G01N23/225 , H01L21/66
CPC分类号: G01B15/02
摘要: A method for measuring the thickness of a layer is provided, comprising (a) providing a structure (101) comprising a first layer disposed on a second layer; (b) impinging (103) the structure with a first ion beam comprising a first isotope, thereby sputtering off a portion of the first layer which contains a second isotope and exposing a portion of the second layer; and (c) determining (105) the thickness of the first layer by measuring the amount of the second isotope which is sputtered off.
摘要翻译: 提供了一种用于测量层的厚度的方法,包括(a)提供包括设置在第二层上的第一层的结构(101) (b)用包括第一同位素的第一离子束撞击(103)结构,从而溅射包含第二同位素的第一层的一部分并暴露第二层的一部分; 和(c)通过测量溅射出的第二同位素的量来确定(105)第一层的厚度。