Now that's funny. A solid road map - just no road. ARMs fabrication is totally broken as indicated by TSMCs continuing silence on its production crisis... -----
Only broken in your mind:) The A15 has tapped out on a TSMC 20nm process and one of the M cores (tiny micro controller) has tapped out on an IBM 14nm test process. Clearly the later is a baby step, but a step none the less.
As for TSMC until we actually know the 'problem' it's difficult to comment. The whole process could be duff, or it could be something more mundane.