3 ms·
Can someone explain why the supply voltage for traditional finFETs can't be taken below 0.75V as is quoted in the article? Are they just talking from a mass pro
by kingosticks 7y ago
Can someone explain why the supply voltage for traditional finFETs can't be taken below 0.75V as is quoted in the article? Are they just talking from a mass production yield perspective?
- bertjk 7y agohttps://en.wikipedia.org/wiki/Threshold_voltage https://en.wikipedia.org/wiki/Threshold_voltage
- kingosticks 7y agoI guess I was unclear. I am trying to understand why the threshold voltage can't be reduced below what came across as a hard limit of 0.75V. My guess was that even a finFET can't give you the channel control required to prevent the transistor from approaching a lower threshold voltage. Which means it's half-on when it's supposed to be off, which means you've got a lot more leakage. But surely you can tweak it a bit more: make the fin taller, wrap it around the channel a little bit? And then maybe get a slightly lower threshold voltage? Maybe it's just not worth the hassle and having gate all around is a better return.
- jononor 7y agoThese things are generally already tweaked way into the region of diminishing returns. Easy gains are all taken.
- Robin_Message 7y agohttps://electronics.stackexchange.com/questions/286824/silicon-diode-threshold-voltage-0-7 https://electronics.stackexchange.com/questions/286824/silic...
- kingosticks 7y agoThanks! But I guess my point below still stands, it works just fine, it's just leaky.