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Time-resolved thermal annealing of interface traps in aluminum gate-silicon oxide-silicon devices

Journal Article · · IEEE Trans. Nucl. Sci.; (United States)
DOI:https://doi.org/10.1109/23.7507· OSTI ID:6718941
Anneal kinetics of interface traps in aluminum gate-silicon oxide-silicon structures has been studied using capacitance-voltage measurements. The capacitors were annealed in forming gas at temperatures ranging from 250/sup 0/C to 620/sup 0/C. An exponential decay of the trap density with annealing time has been observed. The curve of the equilibrium value of trap density obtained after long annealing times versus temperature shows a U-shaped form with a minimum located near 450/sup 0/C. A model based on the bimolecular reaction theory is proposed to explain the obtained results.
Research Organization:
Fraunhofer Arbeitsgruppe fur Integrierte Schaltungen, Artilleriestrasse 12, D-8520 Erlangen (DE)
OSTI ID:
6718941
Journal Information:
IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. 35:5; ISSN IETNA
Country of Publication:
United States
Language:
English