Andy Turudic • Respectfully disagree, Daniel, unless you meant "packaged chip transistor count increases" instead of "Moore's Law".
Moore's law is a curve fit to a parabolic function (square law) and the capital, NRE, and recurring cost, per annual transistors fabbed, is VERY low, even at 10nm (do the math...a 1B transistor 28nm FPGA is only $0.004 per transistor fabbed to build the fab to make 1000 chips a year)....those that need low cost per transistor, large transistor counts, or require improvements in speed, or thermal performance, will continue "Moore's Madness". There's nothing less expensive, PER TRANSISTOR.
"3D" is a one time doubler, assuming you can even get it to the equivalent of two layers and, if you're talking about die stacking using TSVs, 3D actually represents a cost INCREASE because of yield compounding. Then you're back to the area correlation again, because competition prioritizes cost over technologer-amusement.
With stacked 3D, whether via (pun intended) TSV, wafer bonding, or whatever - it's a linear function with the number of layers. Thermal flux density limitations, again, will make 3D a fixed multiplier of the area correlation and there's very little chance that layer counts will double every 18 months unless substrates change (compare SiC with Si, for instance and its yield of its planar/FINFETs...not a winning choice). I'd be surprised to see doubling of layers every DECADE. We'll make multilayer to limits quickly, then its progress will grind to a halt, or run on a snail's pace density curve. The ONLY economically viable, non fantasy, reasons for 3D is either a cost-tolerant packaging limitation or coexistence of non-integrable processes and devices, IMO.
Either Moore's law dies off to being a linear function instead of square, or we invent new, non FET, devices. My money's on the latter - you FET-heads need to dump the assumption it'll be a MOSFET in a few years, just like the vacuum tube people never envisioned FET-based scaling. That new technology will likely be borne out of CERN's work, IMO - the science has to come before the engineering can happen.
Time for something new...non-FET...."soon" - my crystal ball says two decades.
We also are stuck with a binary logic paradigm - there's a fair amount of innovation here that few, if any, are exploiting, particularly the somewhat unimaginative CAE providers. This may actually provide some relief until my predicted sub-atomic devices are developed....and those may be some form of analog/binary bastardization that will require entirely new computation constructs.
As far as analog goes, hang on to the thought that there's no room for process improvement or technology advances and you'll get run over by the big truck called innovation. As long as we invest in innovation, instead of Wall St, human imagination, creativity, and resourcefulness is limitless. Sadly, we're in a phase where we are not, though kudos to the EU for CERN and ITER..
BTW, I'm now looking for new career opportunities in semiconductor product line roadmaps, strategic planning, chip architecture, product marketing, biz dev, etc. Please take a look at my profile and let me know if there's an area where I can make a significant contribution to a team you are working with, or if you know a team that would welcome my abilities and background..