Np56: Read this article and you will get more courage to invest, Poet has already built RO in other scale.
Very important article indeed! Make sure you also read the comments!
Unfortunately EE Times has mixed up images and captions. Actually the ring oscillator looks like this:
![](http://img.deusm.com/eetimes/2014/09/1323892/rcj_POET_ring-oscillator_GaAs_III-V.jpg)