20. Nuclear hardness for telecommunication In , telecommunication the term nuclear hardness has the following meanings: 1. An expression of the extent to which the performance of a system, facility, or device is expected to degrade in a given nuclear environment. 2.The physical attributes of a system or electronic component that will allow survival in an environment that includes nuclear radiation and electromagnetic pulse(EMP)
21. Radiation hardened chips are made by two methods Radiation hardening by process (RHBP) Radiation hardening by design (RHBD). It has been demonstrated that RHBD techniques can provide immunity from total-dose and single-event effects in commercially produced circuits
22. Radiation Hardened Technology A normal computer unless given proper shielding will not be able to work properly. Thus special types of chips- rad hard chips are used . Rad Hard Electronics It's an engineering challenge to develop space chips that perform many sensitive, vital functions while being robust enough to performing under severe conditions.
23. Rad-Hard SOI Process Hardening" is realized through specific controls and patented process steps to minimize effects of radiation. No Latchup - SOI inherently eliminates latchup, which can occur in CMOS devices due to a parasitic condition in which at least one pnp junction Hardened Buried Oxide and Trench Isolation - Rad-hard devices require hardening of the buried oxide and trench isolation to reduce charge induced by gamma rays
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