Abstract
Electrical bias stressing and X irradiation experiments have been carried out on HfO2 / SiO2 dielectric stacks. Evidence is found for a negative electric field induced positive charge injection and trapping and radiation induced positive charge trapping. Positive electric fields associated with radiation result in negative charge trapping. Potential-induced cyclic injection/removal of positive charge is also observed. It is suggested that these structures are radiation soft.
Original language | English (US) |
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Article number | 104101 |
Journal | Journal of Applied Physics |
Volume | 101 |
Issue number | 10 |
DOIs | |
State | Published - 2007 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy