Patent ID: 9110384
Filing Date: 2015-08-18
Classification: G03F,H01J

Abstract:
1. A scanning electron microscope comprising: an electron source; a convergent lens of converging an electron beam emitted from the electron source; a deflection coil of scanning the electron beam on a sample; a detector of detecting a secondary electron generated from the sample by irradiating the sample with the electron beam; and calculating means for calculating a contour of a pattern of a surface of the sample based on an output of the detector; wherein the calculating means corrects a contour of the pattern changed by irradiating the sample with the electron beam in accordance with a shape of the pattern, wherein the shape of the pattern is an angle of a pattern edge relative to a scanning direction of the electron beam, further comprising: a corresponding diagram storing portion of storing a corresponding diagram of the angle of the pattern edge relative to the scanning direction of the electron beam and a size change amount of the pattern.