BS ISO 21466:2019

This standard BS ISO 21466:2019 Microbeam analysis. Scanning electron microscopy. Method for evaluating critical dimensions by CDSEM is classified in these ICS categories:

• 37.020 Optical equipment

This document specifies the structure model with related parameters, file format and fitting procedure for characterizing critical dimension (CD) values for wafer and photomask by imaging with a critical dimension scanning electron microscope (CD-SEM) by the model-based library (MBL) method. The method is applicable to linewidth determination for specimen, such as, gate on wafer, photomask, single isolated or dense line feature pattern down to size of 10 nm.