Patent ID: 7385198
Filing Date: 2008-06-10
Classification: G01L,G01N,H01J,H01L

Abstract:
1. An apparatus for measuring the physical properties of a micro region, the apparatus comprising: a condenser lens system for irradiating a sample with an accelerated electron beam; an electron-beam deflecting means for controlling the position of the irradiation of the sample with the electron beam; an objective lens for forming an electron beam diffraction image of the sample; a focusing lens system for magnifying the electron beam diffraction image; a two-dimensional electron detector for outputting a signal pertaining to a position of a specific diffraction spot of the electron beam diffraction image magnified by the focusing lens system; and an image display apparatus for displaying an output signal from the two-dimensional electron detector, corresponding to a displacement distance of the specific diffraction spot on the detection plane in synchronism with electron-beam deflection by the electron-beam deflecting means.