Yes 16 node is really 20 node transistor density (both transistor pitch and metal pitch are same as 20) at higher wafer cost.
It makes no sense. Cost per transistor goes up (Moore's law goes backward)
Plus if that was not bad enough it is too costly to build and validate design IP for 2 nodes with the same transistor density.
This is why Altera, Cisco, Micro Semi and i hear likely another another left for intel. Intel''s 14 nm will have a real 14nm metal system and a real 14nm transistor density
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.