Abstract
The nonvolatile-memory (NVM) characteristics of AIO- -implanted Al2O3structures are reported and shown to exhibit promising behaviors, including fast program/erase speeds and high-temperature data retention. Photoconductivity spectra show the existence of two dominant trap levels, located at around 2 and 4 eV below the conduction band minimum of Al2O3, and our calculations show that these levels are likely attributed to the defects in the Al2O3, such as the Al-O divacancy. The relative concentrations of these defects vary with the implant fluence and are shown to explain the NVM characteristics of the samples irradiated to different fluences.
| Original language | English |
|---|---|
| Pages (from-to) | 837-839 |
| Number of pages | 3 |
| Journal | IEEE Electron Device Letters |
| Volume | 30 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2009 |