Patent ID: 8912487
Filing Date: 2014-12-16
Classification: G01N,H01J

Abstract:
1. A charged particle beam device comprising: a deflector for deflectively scanning a charged particle beam, a display unit for detecting particles generated by irradiation of the charged particle beam and displaying an image, and a controller for controlling a deflection pattern of the charged particle beam, wherein the controller includes: a first memory for storing a first image obtained by scanning a scanning region set outside an ion beam irradiation-prohibited region with an ion beam; a second memory for storing a second image obtained by scanning a capturing region set so as to overlap with at least part of the irradiation-prohibited region and at least part of the scanning region with a charged particle beam other than an ion beam; and means for complementarily superimposing the first and second image, wherein the display unit displays a superimposed image obtained by superimposing the first and the second image, and wherein a region of a sample to be processed with the ion beam is set within the superimposed image.