Patent ID: 7105817
Filing Date: 2006-09-12
Classification: G01N,H01J

Abstract:
1. A method, comprising: a) scanning an area of a surface of a specimen with an electron beam from a scanning electron microscope; then b) detecting electrons scattered from the area of the surface of the specimen with an electron imaging device, the electron imaging device having a large plurality of individual detector elements; then c) combining signals from at least a first individual detector element of the large plurality of individual detector elements to form a first image of the area of the surface of the specimen; and d) combining signals from at least a second individual detector element of the large plurality of individual detector elements to form a second image of the area of the surface of the specimen; wherein the signals from the at least first individual detector element and the at least second individual detector element of the large plurality of individual detector elements are recorded simultaneously in a single scan of the electron beam over the area of the specimen.