I don't think demand for silicon(measured by area) for high end manufacturing processes had dropped. It might have shifted from pc to tablets/smartphones. but i

I don't think demand for silicon(measured by area) for high end manufacturing processes had dropped. It might have shifted from pc to tablets/smartphones. but it's there. According to darpa , the end would probably come due to money. But even assuming unlimited money, 6nm is the size of a silicon atom. to go below we'll have to split the atom :)