Chemical detection with MOSFET sensor

摘要

Embodiments relate to a method including receiving a voltage potential at a gate of a first MOSFET based on a sensed chemical characteristic. The method includes receiving at a backgate of the first MOSFET an AC voltage signal and analyzing, with an analysis circuit connected to one of a first source and a first drain of the MOSFET, the sensed characteristic based on the receiving the voltage potential at the gate of the first MOSFET.