People Innovation Excellence

Self-Healing Transistors for Chip-Scale Starships

Working with the Korea Institute of Science and Technology (KAIST), NASA is pioneering the development of tiny spacecraft made from a single silicon chip that could slash interstellar exploration times.

On Wednesday at the International Electron Devices Meeting in San Francisco, NASA’s Dong-Il Moon will present new technology aimed at ensuring such spacecraft survive the intense radiation they’ll encounter on their journey.

If a silicon chip were used as a spacecraft, calculations suggest that it could travel at one-fifth of the speed of light and reach the nearest stars in just 20 years. That’s one hundred times faster than a conventional spacecraft can offer.

Twenty years in space is still too long for an ordinary silicon chip, because in addition to the frailties it suffers on earth, such as swings in temperature, it is bombarded by radiation of very high energy. This radiation leads to the accumulation of positively charged defects in the chip’s silicon dioxide layer, where they degrade device performance. The most serious of the impairments is an increase in the current that leaks through a transistor when it is supposed to be turned off, according to Yang-Kyu Choi, leader of the team at KAIST, where the work was done. However, there are also other issues, such as a shift in the voltage at which the transistor turns on.

…[Read more]


Published at : Updated
Leave Your Footprint

    Periksa Browser Anda

    Check Your Browser

    Situs ini tidak lagi mendukung penggunaan browser dengan teknologi tertinggal.

    Apabila Anda melihat pesan ini, berarti Anda masih menggunakan browser Internet Explorer seri 8 / 7 / 6 / ...

    Sebagai informasi, browser yang anda gunakan ini tidaklah aman dan tidak dapat menampilkan teknologi CSS terakhir yang dapat membuat sebuah situs tampil lebih baik. Bahkan Microsoft sebagai pembuatnya, telah merekomendasikan agar menggunakan browser yang lebih modern.

    Untuk tampilan yang lebih baik, gunakan salah satu browser berikut. Download dan Install, seluruhnya gratis untuk digunakan.

    We're Moving Forward.

    This Site Is No Longer Supporting Out-of Date Browser.

    If you are viewing this message, it means that you are currently using Internet Explorer 8 / 7 / 6 / below to access this site. FYI, it is unsafe and unable to render the latest CSS improvements. Even Microsoft, its creator, wants you to install more modern browser.

    Best viewed with one of these browser instead. It is totally free.

    1. Google Chrome
    2. Mozilla Firefox
    3. Opera
    4. Internet Explorer 9
    Close