Micro-irradiation experiments in MOS transistors using synchrotron radiation

Spatially-resolved total-dose degradation has been performed in MOS transistors by focusing X-ray synchrotron radiation on the gate electrode with micrometer resolution. The influence of the resulting permanent degradation on device electrical properties has been analyzed using current-voltage and charge pumping measurements, in concert with optical characterization (photon emission) and quasi-breakdown measurements.