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't Hart, P.A. (author), Babaie, M. (author), Charbon-Iwasaki-Charbon, E. (author), Vladimirescu, A. (author), Sebastiano, F. (author)This paper presents a device matching study of a commercial 40-nm bulk CMOS technology operated at cryogenic temperatures. Transistor pairs and linear arrays, optimized for device matching, were characterized over the temperature range from 300 K down to 4.2 K. The device parameters relevant for mismatch, i.e., the threshold voltage and the...journal article 2020
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Sonmez, U. (author), Sebastiano, F. (author), Makinwa, K.A.A. (author)An array of temperature sensors based on the thermal diffusivity (TD) of bulk silicon has been realized in a standard 40-nm CMOS process. In each TD sensor, a highly digital voltage-controlled oscillator-based Σ Δ ADC digitizes the temperature-dependent phase shift of an electrothermal filter (ETF). A phase calibration scheme is used to...journal article 2017
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Sebastiano, F. (author)Wireless Sensor Networks require small low-cost radios to enable communication among its nodes. Since those radios must be fully integrated to reduce cost and size, integration is required also for their on-board time references, which are needed to achieve synchronization with the other nodes. To deal with the lower accuracy of integrated...doctoral thesis 2011