Y. Okada et al., THE PERFORMANCE AND RELIABILITY OF 0.4 MICRON MOSFETS WITH GATE OXYNITRIDES GROWN BY RAPID THERMAL-PROCESSING USING MIXTURES OF N2O AND O2, I.E.E.E. transactions on electron devices, 41(2), 1994, pp. 191-197
We studied the effect of interfacial nitrogen concentration on device
characteristics with gate oxynitrides grown from mixtures of N2O and O
2 by rapid thermal processing. The performance and reliability of MOS
capacitors fabricated by a four mask process and MOSFET's fabricated b
y a 0.4mum twin-well process were examined. No degradation of the curr
ent drive of n-and p-MOSFET's in the linear and the saturation region
was observed due to oxynitridation. The reliability of gate dielectric
s represented by charge-to-breakdown for substrate injection and hot c
arrier immunity of n-MOSFET's is improved with increasing interfacial
nitrogen concentration.