It is not exactly what I mean. Spondoolies stated that they will produce 28nm chips and 14/16nm together (weeks or month later). This is because 14/16nm will be very expensive and 28nm can make ROI in shorter view. 28nm will be for small/home miners which can upgrade their hardware often, 14/16nm will be for datacenters who set-up hardware and leave it unattended working.