Mechanisms of Noise Degradation in Low Power 65 nm CMOS Transistors Exposed to Ionizing Radiation

Experimental data provide insight into the mechanisms governing the impact of gate and lateral isolation dielectrics and of scaling-related technological advances on noise and its sensitivity to total ionizing dose effects in Low Power 65 nm CMOS devices. The behavior of the 1/f noise term is correlated with the effects on the drain current that irradiation brings along by turning on lateral parasitic transistors. A comparison with data from previous CMOS generations is carried out to assess the impact of process features on radiation-induced degradation effects.