So, when will we move to the future of scaling? We will continue to focus on the third dimension. We’ve created experimental devices stacked on top of each other that provide 30% to 50% smaller logic. Crucially, the top and bottom devices are the two complementary types, NMOS and PMOS, that have been the basis of all logic circuits for the past few decades. We believe this 3D stacked complementary metal oxide semiconductor (CMOS) or CFET (complementary field effect transistor) will be the key to extending Moore’s Law into the next decade.
Continuous innovation is an important foundation of Moore’s Law, but each improvement requires trade-offs. To understand these tradeoffs and how they inevitably lead us to 3D stacked CMOS, you need some background on how transistors work.