Evidence that similar point defects cause 1/<i>f</i>noise and radiation-induced-hole trapping in metal-oxide-semiconductor transistors

Daniel M. Fleetwood, John H. Scofield

Physical Review Letters · 1990 · 155 citations · 19 references

Concepts

Abstract

We have found that the 1/f-noise magnitude of unirradiated metal-oxide-semiconductor (MOS) transistors correlates strikingly with the radiation-induced-hole trapping efficiency of the oxide (${f}_{\mathrm{OT}}$). This suggests that the previously unidentified defect that causes 1/f noise in MOS transistors is linked to the radiation-induced-hole trap, the ``E' center,'' or to a direct precursor (likely a simple oxygen vacancy) known to be present in ${\mathrm{SiO}}_{2}$ before irradiation. We derive a simple equation that relates the noise and ${f}_{\mathrm{OT}}$.

References

19