TY - GEN AU - M G Buchler AU - J M David AU - R L Mattis AU - W E Phillips AU - W R Thurber C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1976-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.400-21 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1976 TI - Planar test structures for characterizing impurities in silicon: ER -