Now here's one worthwhile noting … (even though not strictly Astronomy .. but for processing those AP images ...):
"Graphene transistor beats speed records"
Quote:
Researchers in the US have developed a new way of making transistors from graphene – a sheet of carbon just one atom thick. The technique overcomes a major obstacle facing those who want graphene to replace silicon as the material of choice in future electronic devices. It has also been used to make the highest-speed graphene transistors ever.
…
The finished devices have the highest transconductance, (the inverse of resistance), value ever reported for such devices, of 1.27 mSµm–1. The transconductance of a transistor determines how well it performs.
Microwave measurements on the transistors also show they have a record-breaking intrinsic cut-off frequency in the range of 100–300 GHz, which is about twice as fast as the very best silicon MOSFETs of a similar size.
Finally, the mobility of the devices (which determines how fast electrons move through them) is about 20,000 cm2/Vs – a value that is around two orders of magnitude better than that of similarly sized commercial silicon transistors.
…
The team now plans to fabricate transistors with smaller gate lengths to push the cut-off frequency even higher – perhaps towards 1 THz. "We also hope to scale up the approach to fabricate big arrays of high-speed graphene transistors on large-area substrates, including flexible substrates," revealed Duan.
|
They are going on to fabricate transistors that push the cutoff frequency towards 1 THz !
Watch this space ... this one is going to be big … I mean ...really big !
Cheers