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Old 31-01-2017, 05:53 PM
gary
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As a further update, an article has appeared in the Institute of Electrical and Electronics Engineers (IEEE) Spectrum magazine web site dated 30 Jan 2017 and entitled
"Self-Healing Transistors for Chip-Scale Starships. A new design could survive the radiation of a 20-year trip to Alpha Centauri".

Quote:
Originally Posted by IEEE Spectrum
Working with the Korea Advanced Institute of Science and Technology (KAIST), NASA is pioneering the development of tiny spacecraft, each made from a single silicon chip, that could slash interstellar exploration times.

Speaking at the IEEE International Electron Devices Meeting in San Francisco last December, NASA’s Dong-Il Moon detailed this new technology, which is aimed at ensuring such spacecraft survive the potentially powerful radiation they’ll encounter on their journey.
Quote:
Originally Posted by IEEE Spectrum
“On-chip healing has been around for many, many years,” says Jin-Woo Han, a member of the NASA team. The critical addition made now, Han says, is the most comprehensive analysis of radiation damage so far.

This study uses KAIST’s experimental “gate-all-around” nanowire transistor. These devices use nanoscale wires as the transistor channel instead of today’s fin-shaped channels. The gate-all-around device may not be well known today, but production is expected to rocket in the early 2020s. [See “Transistors Could Stop Shrinking in 2021,” IEEE Spectrum, August 2016].
Article here -
http://spectrum.ieee.org/semiconduct...cale-starships
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  #22  
Old 02-02-2017, 07:25 PM
gary
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This 31 Jan 2017 article by the IEEE's Rachel Courtland is entitled
"5 Hurdles to Reaching the Next Star System -Even if your spaceship is just a chip, getting to Alpha Centauri will be a real challenge"

http://spectrum.ieee.org/aerospace/s...xt-star-system

The article lists five challenges and has hyperlinks to active research in the area.
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