Testing at the Speed of Light The State of U.S. Electronic Parts Space Radiation Testing Infrastructure (2018) / Chapter Skim
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4 Future Infrastructure Needs
4 Future Infrastructure Needs
Pages 44-50
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From page 44... ...
In this rapidly evolving field, however, future demand is difficult to quantify. The actual number of hours required depends on the evolution of the commercial space sector and electronics technology as well as future developments in testing methodology and the level of reliability required for future missions.
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From page 45... ...
has enabled device integration to keep pace with Moore's Law that predicts the number of transistors on cutting-edge integrated circuits doubling approximately every 2 years without a corresponding increase in manufacturing costs. Eventually, expected performance gains from simply making the individual transistors smaller will stall, due to the combined effects of the need to reduce the supply voltages to control device leakage and reduce power consumption, and the increasing wiring load of densely
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From page 46... ...
Figure 4.1 also illustrates a time lag in radiation-hardened parts compared with commercial-part scaling that increases from a 5-year lag in 2000 to an 8-year lag in 2015. With decreasing feature size often comes increased performance speed and reduced power consumption, and it is clear that spacecraft designers face pressure to use the more advanced commercial parts to take advantage of their capabilities.
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From page 47... ...
integration, so-called "3D power scaling," building multiple layers of circuitry atop one another and connecting them with a dense wiring network. Specifically, the ITRS predicts that chip manufacturers will most likely move from device structures currently used in leading-edge chip production (such as the Fin Field effect transistor [FinFET]
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From page 48... ...
Many of these requirements dovetail with the evolution of commercial electronics, and space electronics can take advantage of the tremendous amount of research funded by companies and government agencies. However, the additional requirement for these electronics to function for long periods of time in harsh space radiation environments imposes additional constraints on the materials and devices and additional testing requirements to ensure adequate performance in radiation environments.
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From page 49... ...
• The growing commercial space industry and numbers and variety of spacecraft that increase testing requests. • The pressure for spacecraft designers to incorporate commercial electronic parts for their performance and power advantages.
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From page 50... ...
, especially Monte Carlo estimation of SEE failure rates, to reduce the number of heavy-ion tests required to assure device reliability and lifetime. However, although improved M&S may reduce the need for electronic parts testing in the long term, in the short term, validating and verifying new models and simulations may in fact increase the need for radiation testing.
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