I believe that Moore's Law was based on 2-D.shalom b'SHEM Yah'shua HaMashiachThere has been some work on 3-D chips.
I saw a claim a couple weeks ago that someone had a 16 terabyte SSD in a 2.5 inch form factor so they are getting all those bytes somewhere. They claimed speeds approaching 1000 times normal SSD. I seem to remember a price like $14,000.00.