Cryogenic matching performance of 90 nm MOSFETs

While the matching properties of MOSFETs have been extensively studied, the impact of temperature on matching remains poorly understood. Recent efforts at understanding the effects of temperature on matching report improved matching at higher temperatures. This paper examines the impact of cryogenic temperatures on the matching performance of a 90 nm bulk CMOS technology. Cryogenic operation improves many of the MOSFET performance metrics and cryogenic MOSFETs have been shown to achieve lower broadband noise at cryogenic temperatures, opening up the possibility of their application in radio astronomy that require very low noise.