hardened circuit

hardened circuit

[′härd·ənd ¦sər·kət]
(electronics)
A circuit that uses components whose tolerance to radiation released by a nuclear explosion has been increased by various radiation-hardening procedures.
References in periodicals archive ?
With everyone in that main event guaranteed at least three matches, the winner of the qualifiers has a wonderful chance to discover just how good he really is when meeting hardened circuit players in serious competition.
The program will build on Boeing's 20 years of experience in developing radiation hardened circuits on leading-edge commercial fabrication processes by use of highly efficient design techniques.