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- W3031862946 abstract "The characterization of commercial-grade power transistors upon high levels of particle irradiation is required to enable radiation tolerant LED power supplies for the new luminaires of CERN accelerator tunnels, which represent a harsh environment for semiconductor devices. This work describes the effects of 24 GeV/c proton irradiation on commercial GaN hybrid-drain-embedded gate injection transistors (HD-GITs) after a fluence of 5.9 × 1014 p/cm2. Measurements of drain leakage current, threshold voltage and Ids − Vds curves show that only a minor variation occurs in the electrical properties of GaN HD-GITs after the considered fluence; for example, an average increase of ≈11–13 mV is found in the threshold voltage upon irradiation. We also put forward a physical explanation of the observed degradation caused by proton irradiation; in particular, the electron drift velocity in the 2DEG channel at high electric fields appears to decrease due to a radiation-induced increase in phonon relaxation rate. Finally, an AC/DC LED power supply with current control using GaN HD-GITs is proposed for the new luminaires of CERN tunnels, meeting the requirements in terms of radiation hardness and light quality." @default.
- W3031862946 created "2020-06-05" @default.
- W3031862946 creator A5005126883 @default.
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- W3031862946 date "2020-07-01" @default.
- W3031862946 modified "2023-10-14" @default.
- W3031862946 title "High-energy proton irradiation effects on GaN hybrid-drain-embedded gate injection transistors" @default.
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- W3031862946 doi "https://doi.org/10.1016/j.microrel.2020.113656" @default.
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