PMID- 19441593 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20090604 LR - 20190715 IS - 1533-4880 (Print) IS - 1533-4880 (Linking) VI - 9 IP - 2 DP - 2009 Feb TI - Monte Carlo simulation of scanning electron microscope image of sidewall shape for linewidth measurement. PG - 1655-8 AB - Scanning electron microscope (SEM) has been an important tool for the observation of surface micro-structures of various kinds of materials. The secondary electron image, which uses secondary electrons that escaped from the surface under a primary electron beam bombardment as imaging signals, can provide the surface topographic information with a resolution up to sub-nm with a modern SEM. Therefore, it can be used for nanometrology with improved measurement accuracy by critical dimension scanning electron microscope (CD-SEM). This work aims to develop a Monte Carlo simulation method for application to the nanometer linewidth measurement for semiconductor devices by SEM. The simulation will provide a theoretical analysis of the influence of various parameters of specimen and electron beam on the estimation of linewidth and the sidewall angles. The result will be helpful for the improvement of the measurement precision by CD-SEM. FAU - Xiao, S M AU - Xiao SM AD - Hefei National Laboratory for Physical Sciences at Microscale and Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China. FAU - Zhang, Z M AU - Zhang ZM FAU - Li, H M AU - Li HM FAU - Ding, Z J AU - Ding ZJ LA - eng PT - Journal Article PL - United States TA - J Nanosci Nanotechnol JT - Journal of nanoscience and nanotechnology JID - 101088195 EDAT- 2009/05/16 09:00 MHDA- 2009/05/16 09:01 CRDT- 2009/05/16 09:00 PHST- 2009/05/16 09:00 [entrez] PHST- 2009/05/16 09:00 [pubmed] PHST- 2009/05/16 09:01 [medline] AID - 10.1166/jnn.2009.c225 [doi] PST - ppublish SO - J Nanosci Nanotechnol. 2009 Feb;9(2):1655-8. doi: 10.1166/jnn.2009.c225.