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Discovery suggests new promise for nonsilicon computer transistors
- peter_d_sherman 6y ago>"Cai’s team pinpointed oxide trapping as the culprit by studying the transistor’s frequency dependence — the rate at which electric pulses are sent through the transistor. At low frequencies, the performance of nanoscale InGaAs transistors appeared degraded. But at frequencies of 1 gigahertz or greater, they worked just fine — oxide trapping was no longer a hindrance. “When we operate these devices at really high frequency, we noticed that the performance is really good,” she says. “They’re competitive with silicon technology.”
- bcrl 6y agoI always got the impression that the reason InGaAs is never used outside of RF applications is due to it having a higher production cost than silicon based semiconductors. Has this research actually moved the needle on that cost?