Thought for the month
“It is a general popular error to suppose the loudest complainers for the public to be the most anxious for its welfare.” Edmund Burke, politician (1729 – 97).
Friday, 11 March 2011
Graphene, on or off?
This month has seen Texas Instruments give further insights into their CVD work on the growth of graphene and fabrication of FETs. IBM have produced a graphene transistor running at 100GHz and UCLU one with a cut of frequency of 300GHz. However, as real world applications become more feasible, the IBM group has highlighted the issues associated with the difficulty of turning off a graphene FET. Residual leakage currents will generate heat and the inability to always detect the difference between an open and a closed gate are clearly worrying IBM.