Patent ID: 7649216

Claim:
A radiation hardened integrated circuit (IC) comprising: a ground node; a first voltage node configured to receive a first voltage between the first voltage node and ground; a second voltage node configured to receive a second voltage between the second voltage node and ground, such that a magnitude of the second voltage is between a magnitude of the first voltage and a magnitude of ground; interface circuitry coupled between and configured to receive operating power from the first voltage node and the ground node; and core circuitry: coupled between and configured to receive operating power from the first voltage node and the second voltage node; and comprising a plurality of N-type metal-oxide-semiconductor (NMOS) transistors having a plurality of sources connected to the second voltage node and a plurality of bodies connected to the ground node, wherein applying the second voltage to the plurality of sources and applying ground to the plurality of bodies provides reverse body biasing (RBB) to the plurality of NMOS transistors.