Patil, ShubhamShubhamPatilKadam, AbhishekAbhishekKadamSonawane, JayJaySonawaneDeshmukh, ShreyasShreyasDeshmukhGaurav, R.R.GauravKumar Singh, AjayAjayKumar SinghLashkare, SandipSandipLashkareDeshpande, VeereshVeereshDeshpandeSomappa, LaxmeeshaLaxmeeshaSomappaGanguly, UdayanUdayanGanguly2025-08-312025-08-312024-01-0110.1109/TED.2024.34691772-s2.0-85207801331https://d8.irins.org/handle/IITG2025/29145The compact and energy-efficient integrated temperature sensors are crucial for temperature monitoring and control. In this work, we propose a novel area and energy-efficient band-to-band tunneling (BTBT)-based oscillator for temperature sensing applications. It utilizes oscillation frequency as a metric for temperature sensing. The linearity in BTBT current with temperature can enable sensing with a simple readout mechanism. The initially designed circuit is simulated and analyzed in TCAD using mixed-mode simulation, followed by the fabrication of the proposed circuit using GF 45nm RFSOI technology. Measurements show the BTBT oscillator's quasi-linear response as a function of temperature. Our proposed work enables the area (0.32μm²) and energy-efficient temperature sensor (2.5 fJ/cycle) for the energy and area-constraint edge applications.falseBand-to-band tunneling (BTBT) | oscillator | SOI | TCAD mixed mode simulation | temperature sensorArticle155796467208-721220240arJournal0WOS:001335993600001