Electron and hole trapping were studied in sub-2-nm SiO2 Al2O3 poly-Si gate stacks. It was found that during substrate injection, electron trapping is the dominant mechanism. Conversely, during gate injection both hole and electron trapping can be observed, depending on the applied bias. These hot carrier effects are closely linked to the band structure of SiO2 Al2O3 poly-Si system.
Impact of band structure on charge trapping in thin SiO2/Al2O3/Poly-Si gate stacks / L., Pantisano; Lucci, Luca; E., Cartier; A., Kerber; G., Groeseneken; M., Green; Selmi, Luca. - In: IEEE ELECTRON DEVICE LETTERS. - ISSN 0741-3106. - 25:(2004), pp. 320-322. [10.1109/LED.2004.826534]
Impact of band structure on charge trapping in thin SiO2/Al2O3/Poly-Si gate stacks
SELMI, Luca
2004
Abstract
Electron and hole trapping were studied in sub-2-nm SiO2 Al2O3 poly-Si gate stacks. It was found that during substrate injection, electron trapping is the dominant mechanism. Conversely, during gate injection both hole and electron trapping can be observed, depending on the applied bias. These hot carrier effects are closely linked to the band structure of SiO2 Al2O3 poly-Si system.
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