I'll also add that it's fascinating that both 10 nm and 7 nm are having issues.
My understanding (and please correct me if I'm wrong), is that the development of manufacturing capabilities for any given node is an independent process. It's like building two houses: the construction of the second house isn't dependent on the construction of the first. Likewise, the development of 7 nm isn't dependent on the perfection of 10 nm.
This perhaps suggests that there is a deep institutional problem at Intel, impacting multiple manufacturing processes. That is something more significant that a big manufacturing problem holding up the development of one node.
