Abstract
N-channel depletion MOSFETs were irradiated with different swift heavy ions viz., 175 MeV Ni13+ ions, 140 MeV Si10+ ions, 100 MeV F8+ ions, 95 MeV O7+ ions and 48 MeV Li3+ ions in the same dose range of 100 krad–100 Mrad. The different electrical characteristics of MOSFETs were studied before and after irradiation and after annealing. The degradation and recovery mechanisms were studied systematically. It was found that around 80 % degradation in transconductance and mobility and almost 100 % recoveries in the electrical characteristics of irradiated MOSFETs after annealing.
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Acknowledgments
The authors acknowledge with thanks to Dr D Kanjilal, Dr D K Avasthi and Dr Ambuj Tripathi, IUAC, New Delhi, India for their help and encouragement to do this work. This work is carried out under the project supported by DAE-BRNS (Project No. 2009/37/35/BRNS/2275) and DST (Project No. SR/S2/CMP-0034/2012), Government of India.
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Pushpa, N., Gnana Prakash, A.P. Swift heavy ion irradiation and annealing studies on the I–V characteristics of N-channel depletion Metal–oxide–semiconductor field-effect transistors. Indian J Phys 89, 943–950 (2015). https://doi.org/10.1007/s12648-015-0659-y
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DOI: https://doi.org/10.1007/s12648-015-0659-y