Patent ID: 7598755
Filing Date: 2009-10-06
Classification: G01R

Abstract:
1. A charged particle beam system for measuring electrical characteristics of a sample, comprising: a plurality of probes to detect an electrical current or voltage or electrical signal from the sample, each of the probes having a tip for contacting a sample; an electro-optical device to irradiate the sample with a charged particle beam and to obtain a second charged particle image by detection of a second charged particle beam resulting from irradiation of the sample; an electrical characteristics measuring instrument to measure the electrical characteristics of the sample based on the electrical current or the voltage or the electrical signal detected by the probe; a computer connected to a CAD image storing means for storing layout pattern of the sample, and a displaying unit for displaying the second charged particle image and a first CAD stored in the CAD image storing means such that the second charged particle image is lying on the first CAD.