TY - CONF AU - M Tanaka AU - John Villarrubia AU - Andras Vladar C2 - Proceedings of SPIE, San Jose, CA, USA DA - 2005-03-03 00:03:00 LA - en M1 - 5752 PB - Proceedings of SPIE, San Jose, CA, USA PY - 2005 TI - Influence of Focus Variation on Linewidth Measurements ER -