Patent ID: 7687286

Claim:
A method of manufacturing an electric device, the electric device comprising an electrically conductive body having a dielectric layer, the dielectric layer being separated from the electrically conductive body by at least one further dielectric layer, the method comprising the steps of: providing the electrically conductive body with the at least one further dielectric layer, providing the at least one further dielectric layer with the dielectric layer, and determining a dielectric layer thickness including, providing an electrically conductive body having a dielectric layer, the dielectric layer being separated from the electrically conductive body by at least one further dielectric layer, a surface of the dielectric layer being exposed, depositing an electric charge onto the exposed surface, thereby inducing an electric potential difference between the exposed surface and the electrically conductive body, the electric potential difference being a function of a thickness of the dielectric layer and a thickness of the at least one further dielectric layer, determining an electrical parameter relating to the electric potential difference, and performing a measurement for obtaining measurement data being a further function of the thickness of the at least one further dielectric layer, the dielectric layer thickness being selected from the thickness of the dielectric layer and the thickness of the at least one further dielectric layer, and deriving the dielectric layer thickness from the electrical parameter and the measurement data; and monitoring the steps of providing the electrically conductive body with the at least one further dielectric layer and/or of providing the at least one further dielectric layer with the dielectric layer.