2020 IEEE 33rd International Conference on Microelectronic Test Structures (ICMTS)

Integrated Variability Measurements of 28 nm FDSOI MOSFETs down to 4.2 K for Cryogenic CMOS Applications

Abstract

Mismatch performance of 28 nm FDSOI technology is electrically characterized at low temperatures using integrated on-chip addressing for a matrix of transistors. The first statistical results ever published on FDSOI variability at 4.2 K provide valuable information for future compact transistor modeling in cryogenic circuit design. Slight increase of the threshold voltage mismatch is observed at low temperature. Nevertheless, the suppression of fluctuations in the random distribution of dopants for the fully-depleted transistor channel leads to a smaller threshold voltage variability for FDSOI at 4.2 K compared to advanced Bulk technology at room temperature.

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Author(s)

Bruna Cardoso Paz

Tristan Meunier

CTO & co-founder

Maud Vinet

CEO & co-founder

All authors

Bruna Cardoso Paz , Loick Le Guevel , Mikael Casse , Gerard Billiot , Gaël Pillonnet , Aloysius G.M. Jansen , Sebastien Haendler , Andre Juge , Emmanuel M. Vincent , Philippe Galy , Gérard Ghibaudo , Maud Vinet , Silvano De Franceschi , Tristan Meunier , Fred Gaillard