Self-heating Effects in RF Region of FDSOI MOSFETs at Cryogenic Temperatures

Radio-frequency (RF) circuits are crucial to qubit manipulation, for which transistor self-heating effects may influence performance and possibly change the quantum state. This paper presents an analytical RF model of FDSOI MOSFETs considering dynamic self-heating effects down to 3.3 K for the first time. Parameter extraction involves analytical calculation and optimization using the iteratively re-weighted least squares (IRLS) and Monte Carlo methods. The temperature rise is estimated by capturing the correlation between thermal resistance and device temperature. This work provides a method for modeling FDSOI RF performance and for analyzing dynamic self-heating effects at cryogenic temperatures.

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Self-heating Effects in RF Region of FDSOI MOSFETs at Cryogenic Temperatures

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