Serwis CHIP News podaje informacje o rewolucyjnym odkryciu w technologi tworzenia tranzystorów
Weixiao Huang, amerykański naukowiec chińskiego pochodzenia z Instytutu Politechnicznego Rensselaer, wynalazł alternatywę dla krzemowego tranzystora, wykorzystując mieszankę o nazwie azotek galu (GaN)
Nowe rozwiązanie charakteryzuje się również niższym poborem mocy, mniejszym rozmiarem chip-a oraz wyższą dopuszczalną temperaturą pracy, w stosunku do układów krzemowych
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Jak to jest z tym portalem? można przeklejać newsy z innych polskich portali czy nie?
A ja odkryłem, że woda to w miarę dobry środek gaśniczy…
Uznaje się, że GaN (związek chemiczny, a nie mieszanka) posiada właściwości półprzewodnikowe, więc nie wiem co to za nowina.
Jak dla mnie on tylko był tak bardzo znudzony, że wykonywał bramki logiczne na innych od krzemu podstawach i wyszło, że to też pasuje (ale zaskoczenie, z półprzewodnika można zrobić bramkę logiczną).
Nowe rozwiązanie charakteryzuje się również niższym poborem mocy, mniejszym rozmiarem chip-a oraz wyższą dopuszczalną temperaturą pracy, w stosunku do układów krzemowych
Tak, i ceną kilkukrotnie (minimum) wyższą.
😉 może świecący? bo właśnie czytałem o diodach świecących (LED) i tam przełomowe było chyba użycie GaN do produkcji niebieskich diód.
"Krzem to przeżytek" tak samo jak "Internet Explorer znów przoduje w nowościach na rynku przeglądarek WWW". 🙂
wiecej w Fakcie!
Kuchenki gazowe to przeżytek! Rosyjscy naukowcy zbadali, że jajecznicę można usmażyć do 13^10 razy szybciej na stosie atomowym elektrowni "Meteop" na południowej Kamczatce!
Rosyjscy naukowcy też obliczyli, że jakby całą wodę, z wszystkich mórz i oceanów, wlać do cienkiej szklanej rurki, to ta rurka by była długa "że ja pier***e" 😉
Chyba "wynalazł" tak jak rower u niemca na strychu 😉 Arsenek galu od wiele, wielu, wielu lat stosuje się do budowy szybkoprzełączających układów półprzewodnikowych, laserów, baterii słonecznych. A nie stosuje się go powszechnie zamiast krzemu mimo lepszych właściwości bo jest droższy.
Arsenek galu? W newsie mowa o azotku galu. To o co tu chodzi? Ten news jest newsem czy tylko udaje?
Oj ten "News" to przeszedł przez prawdziwy głuchy telefon każdy kolejny serwis trochę przerabiał oryginalny tekst z esciencenews.com, aż powstał ten nonsens i krzykliwy tytuł – jak się podaje jakąś wiadomośc to trzeba sprawdzić źródło a nie tylko powtarzać jak po 10-tej papudze. Tam nie ma mowy o zastępowaniu krzemu w normalych zastosowaniach!
Bardzo słaby news. Od lat mówi się o węgliku krzemu i innych materiałach(GaN). Technologia obróbki krzemu jest tak dobrze opanowana, że póki co producentom nie opłaca się wdrażać nowej.
GaN jest od dawna używany w diodach, czy laserach (generalnie w optoelektronice). Nawet jeżeli wspomniany tranzystor okazał się lepszy od krzemowego, to jest jeden problem. Krzem należy do najpowszechniejszych materiałów na Ziemii – drogie jest jego przetworzenie, ale nie samo pozyskanie (krzem jest w krzemionce, czyli zwykłym piasku, jakiego wszędzie pełno). Innymi słowy produkcja masowa sprawia, że układy scalone są zazwyczaj dość tanie. Pozyskanie GaN jest już znacznie bardziej skomplikowane, choćby ze względu na to, że gal jest raczej rzadkim pierwiastkiem. Dlatego choćby ruszyła produkcja masowa, to i tak cena nawet nie zbliży się do ceny obecnych rozwiązań opartych o krzem. Tak więc przykro mi, ale tytuł "krzem to przeżytek" jest mocno na wyrost.
Grafen, to jest przyszlosc!
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