TY - JOUR AU - John Burnett AU - Zachary Levine AU - Eric Shirley C2 - Semiconductors DA - 2001-12-01 LA - en M1 - 15 PB - Semiconductors PY - 2001 TI - Intrinsic Birefringence in Crystalline Optical Materials for 193 nm and 157 nm Lithography ER -