An implantable
system having internal circuitry configured to withstand a pre-determined amount of sterilization
radiation is provided. In general, the
system includes an internal control module in electrical communication with an implantable
medical device. The internal control module can include a circuit board configured to withstand
radiation and / or any number of integrated circuits (e.g.,
application specific integrated circuits) wherein the circuits or at least some portion thereof are fabricated so as to withstand some amount of
radiation. For example, some portion of the circuitry can be fabricated utilizing radiation compliant material(s),
silicon-on-insulator technology, and / or
gallium arsenide technology. Additionally, the circuitry can include various components which are inherently resistant to such radiation (e.g., components fabricated utilizing
magnetic field based technology, surface acoustical wave devices, etc.). A method of sterilizing an implantable
medical device via radiation is also provided.