A Nonvolatile InGaZnO Charge-Trapping-Engineered Flash Memory With Good Retention Characteristics
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10.1109/LED.2009.2037986
Abstract
We report an amorphous indium gallium zinc oxide (a-IGZO) thin-film transistor nonvolatile memory (NVM). This NVM shows a large 1.2-V extrapolated ten-year memory window, along with low 10-V/-12-V program/erase voltage, fast 1-ms/100-mu s speed, and good endurance. This was achieved using a charge-trap-engineered structure and high-kappa layers.