Patent ID: 8158938
Filing Date: 2012-04-17
Classification: G01N,H01J

Abstract:
1. A method of imaging a specimen by using a scanning electron microscope, comprising the steps of: inputting a value or range of coordinate information of an evaluation point on the specimen on which patterns are formed; acquiring, from CAD data, design layout information of a pattern formed in an area containing said evaluation point on said specimen; selecting, as input information, at least one of the imaging parameters comprising: a processing parameter, a user request specification, history information, the number, coordinates, size, shape and imaging sequence of a plurality of imaging points for addressing, auto-focus, auto-brightness/contrast, electron beam vertically incident coordinates, and imaging conditions; selecting, as output information, at least one of the imaging parameters comprising: the number, coordinates, size, shape and imaging sequence of a plurality of imaging points for addressing, auto-focus, auto-brightness/contrast, electron beam vertically incident coordinates, imaging conditions, and an evaluation value or a preferential order of an imaging point or imaging sequence; calculating the selected output information by using the value or range of the inputted coordinate information of the evaluation point, the acquired design layout information and said selected input information; storing both the imaging parameters of said input information and output information; storing the pattern at said evaluation point or patterns at imaging points as registry templates; and sequentially imaging patterns formed on said specimen on the basis of said stored imaging parameters and registry templates.