We exploit a SOI junctionless transistor concept [10] inwhich an ultra-thin highly-doped silicon channel can bepinched-off by the control of a top ferroelectric gate, while thebottom gate can be used to tune the FET device characteristicsand its properties as an electronic artificial synapse. Suchdevice architecture shows simplicity in the fabrication withoutneeding junctions that need to be ultra-shallow and abrupt andremoves severe limits on fabrication thermal budgets [14].