Patent ID: 9449788
Filing Date: 2016-09-20
CPC Classification: G01N,H01J

Claim Text:
1. An electron beam apparatus for inspection and/or review, the apparatus comprising: an electron source that generates a primary electron beam; a stage which carries a sample; an electron-optics system that shapes and focuses said primary electron beam onto said sample; a detection system that detects signal-carrying electrons including secondary electrons and back-scattered electrons from said sample; an image processing system that processes data from said detection system; a host computer system that controls and coordinates operations of the electron-optics system, the detection system, and the image processing system; and a graphical user interface which displays a parameter space and provides for user selection and activation of operating parameters of the apparatus, wherein the parameter space displayed by the graphical user interface is a two-dimensional parameter space that has a first dimension comprising a charge control voltage and a second dimension comprising a landing energy, wherein the two-dimensional parameter space includes both continuously-variable regions displayed as lines in the two-dimensional parameter space and discretely-variable regions displayed as points in the two-dimensional parameter space, and wherein said user selection and activation of said operating parameters comprises selecting an operating point from allowed points in the two-dimensional parameter space by pointing and clicking on the operating point using the graphical user interface.