I found very interesting..

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However, that aspect of Moore's Law is now broken. Yes, for chips that can make use of it there will be wonderful capabilities at 14/16nm, 10nm, 7nm. Much lower power. Much higher performance. Another factor of 10 in integration. But not lower cost. As FinFet volume manufacturing builds up, perhaps 16nm will eventually be cheaper than 28nm, but for sure not by as much as we have been used to (the rule of thumb used to be twice the number of transistors, 15% increase in wafer cost, so 35% reduction in cost per transistor). That is why so many people are predicting that 28nm will be a very long-lived process. Double patterning (necessary below 28nm) is an impossible additional cost to swallow completely."