Patent ID: 9305744
Filing Date: 2016-04-05
CPC Classification: G01B,G01N,H01J

Claim Text:
1. A method of measuring a pattern formed on a sample including a wafer and a primary coating layer formed on the wafer, by irradiating a charged particle beam onto the sample, the pattern being formed on the primary coating layer using a material which is different from the material of the primary coating layer so that the primary coating layer is positioned between the pattern and the wafer, the method comprising: a step of preparing data including a pattern shape of the sample acquired while the charged particle beam is irradiating or after it has been irradiated onto the sample; a step of preparing a parameter relating to shrink of a pattern part of the sample; a step of preparing a parameter relating to shrink of a primary coating layer part of the sample; a step of preparing a beam condition when irradiating the charged particle beam onto the sample, and a step of calculating the pattern shape or dimension of the sample before irradiating the charged particle beam onto the sample by using the data including the pattern shape, the parameter relating to shrink of the pattern part, the parameter relating to shrink of the primary coating layer part, and the beam condition.