TY - CONF AU - Richard Silver AU - Theodore Doiron AU - William Penzes AU - S Fox AU - Edward Kornegay AU - S Rathjen AU - M Takac AU - D Owen C2 - Proceedings of SPIE, Metrology, Inspection, and Process Control for Microlithography XIII, Bhanwar Singh, Editor, Santa Clara, CA DA - 1999-06-01 LA - en M1 - 3677 PB - Proceedings of SPIE, Metrology, Inspection, and Process Control for Microlithography XIII, Bhanwar Singh, Editor, Santa Clara, CA PY - 1999 TI - Two-Dimensional Calibration Artifact and Measurement Methodology ER -