Patent ID: 7683313
Filing Date: 2010-03-23
Classification: B82Y,H01J

Abstract:
1. A charged particle beam measurement equipment for obtaining a size data item on an area of a sample on the basis of data obtained from a secondary particle from the sample by irradiating the sample with a charged particle beam to be scanned, said charged particle beam measurement equipment comprising: first storage unit for storing width data items of respective correction mark members of a standard sample for correction, the standard sample for correction being provided with a plurality of the correction mark members having respective widths differing from each other; error computation unit for finding a difference between a measurement width data item on each of the correction mark members of the standard sample for the correction, obtained by irradiating and scanning the sample with the charged particle beam, and a width data item corresponding thereto among a plurality of the width data items stored in the first storage unit on a measurement width data item-by-measurement width data item basis; relationship generation unit for finding a relationship between the respective measurement width data items on the correction mark members of the standard sample for the correction, obtained by irradiating and scanning the sample with the charged particle beam, and respective errors corresponding thereto, found by the error computation unit, or a relationship between the respective measurement width data items, and respective post-correction width data items after correction with the respective errors found by the error computation unit; second storage unit for storing the relationship found by the relationship generation unit; and correction unit for correcting the measurement width data items obtained by irradiating and scanning the sample with the charged particle beam by use of the relationship found by the relationship generation unit.