Patent ID: 8026481
Filing Date: 2011-09-27
Classification: H01J

Abstract:
1. A charged particle apparatus, comprising: a charged particle beam column which irradiates a charged particle beam on a sample; a stage which contains the sample; an electron optical system; a detector which detects the particles which are generated from the sample by irradiating the sample with the charged particle beam; a charged particle control means which controls the charged particle beam; a memory; and a display control means which displays on a monitor control parameters for the charged particle control means which has a plurality of characteristics; wherein the charged particle control means stores a wafer map and a defect file in the memory; wherein the charged particle control means aligns the sample on the stage; wherein the charged particle control means displays and selects defect sites of the sample; wherein the charged particle control means generates a 2-D coordinate system with a throughput of defect inspection as a vertical axis, and displays the 2-D coordinate system on a GUI; wherein the charged particle control means reads an inspection recipe from a recipe memory section of the memory and plots a recipe ID of the inspection recipe on the 2-D coordinate system which is displayed on the GUI such that coordinates of the recipe ID are determined by a robustness variable of charge up and the throughput of defect inspection for the inspection recipe; wherein the charged particle control means determines whether or not recipe IDs of all of the inspection recipes which are stored in the recipe memory are plotted on the 2-D coordinate system which is displayed on the GUI; wherein the charged particle control means selects the inspection recipes from the 2-D coordinate system; wherein the charged particle control means irradiates the charged particle beam according to the electron optical system by outputting a control signal to the optical system through a D/A converter, the sample which was placed on the stage, and the observation condition of the inspection recipe, wherein the charged particle control means moves the stage by a stage controller according to the wafer map and the defect file, and the charged particle control means scans the charged particle beam on an area which includes the defect sites of the sample, and the detector detects secondary electrons of the sample; and wherein the charged particle control means acquires a detection signal through the A/D converter, and generates observation data (SEM image data) by executing image analysis processing and stores the observation data in the image memory section of the memory.