METHOD FOR FABRICATION OF A SEMICONDUCTOR DEVICE AND STRUCTURE

摘要

A 3D IC based system comprising a first semiconductor layer comprising first transistors, wherein the first transistors are interconnected by at least one metal layer comprising aluminum or copper; a second mono-crystallized semiconductor layer comprising second transistors and overlaying the metal layer; wherein the second mono-crystallized semiconductor layer thickness is less than 150 nm, and wherein at least one of the second transistors is an N-type transistor and at least one of the second transistors is a P-type transistor.