TY - CONF AU - Christopher Evans AU - R Parks AU - L Shao AU - Tony Schmitz AU - Angela Davies C2 - SPIE International Symposium on Microlithography, Santa Clara, CA DA - 2001-02-28 LA - en M1 - 4344 PB - SPIE International Symposium on Microlithography, Santa Clara, CA PY - 2001 TI - Interferometric Testing of Photomask Blank Flatness ER -