Enhanced non-volatile memory device characteristics of crystallite Al2O3 film (¿900°C) with a large hysteresis memory window of ¿V ¿ 9.8 V under a gate voltage of ±15 V have been observed due to crystallization of the Al2O3 film. The hysteresis memory window of ¿V ¿ 3.8 V under a gate voltage of ±10 V is also observed. Both program and erase speeds of ¿V~2.6V@1s are achieved under Fowler-Nordheim injections. A large memory window of ¿V ¿ 4.0 V after ~2Ãl06s of retention (~30% charge loss) is obtained. The high-performance ALD crystallite Al2O3 flash memory devices can be operated at ¿10V.
Published in:
Silicon Nanoelectronics Workshop, 2008. SNW 2008. IEEE
Date of Conference: 15-16 June 2008