发明名称 Method and apparatus for determining the thickness of a dielectric layer
摘要 The method for determining the thickness of a dielectric layer according to the invention comprises the step of providing an electrically conductive body having a dielectric layer which is separated from the electrically conductive body by at least a further dielectric layer and a surface of which is exposed. Onto the exposed surface an electric charge is deposited, thereby inducing an electric potential difference between the exposed surface and the electrically conductive body. An electrical parameter relating to the electric potential difference is determined and a measurement is performed to obtain additional measurement data relating to the thickness of the dielectric layer and/or to the thickness of the further dielectric layer. In this way the thickness of the dielectric layer and/or of the further dielectric layer is determined. The method of manufacturing an electric device comprises this method for determining the thickness of a dielectric layer. The apparatus for determining the thickness of a dielectric layer is arranged to execute this method.
申请公布号 US7687286(B2) 申请公布日期 2010.03.30
申请号 US20070837486 申请日期 2007.08.10
申请人 NXP B.V. 发明人 MAJHI PRASHANT
分类号 H01L21/66;G01B7/06;H01L23/58 主分类号 H01L21/66
代理机构 代理人
主权项
地址