Science, Physics, Quantum Mechanics, Quantum Physics, Silicon Valley.
invented in 1988 using 1 micron (um), equal to 1000 nanometers (nm), minimum feature sizes. After almost 30 years of continuous shrinking, this 2-D NAND approach has halted at about 15 nm minimum feature size. Various forms of 3-D NAND are now being introduced to get around problems of increasing