Patent ID: 7298010

Claim:
A composite transistor for use in radiation hardening a complementary metal-oxide semiconductor (CMOS) integrated circuit, comprising: a circuit transistor of an n-type or p-type having a source terminal, a drain terminal, a gate terminal and a body terminal; and a blocking transistor of the same n-type or p-type having a source terminal, a drain terminal, a gate terminal and a body terminal, with the gate terminals of the circuit and blocking transistors being connected together to form a gate terminal for the composite transistor, with the source terminal of the circuit transistor forming a source terminal for the composite transistor, with the drain terminal of the blocking transistor forming a drain terminal for the composite transistor, with the source terminal of the blocking transistor being connected to the drain terminal of the circuit transistor, with the body terminal of the circuit transistor forming a body terminal for the composite transistor, and with the body terminal of the blocking transistor being connected to the source terminal of the blocking transistor and with the body terminal of the blocking transistor being electrically isolated from any other connection point in the CMOS integrated circuit.