Wafer Level 3-D ICs Process Technology

Three-dimensional (3D) integration is clearly the simplest answer to most of the semiconductor industry’s vexing problems: heterogeneous integration and red- tions of power, form factor, delay, and even cost. Conceptually the power, latency, and form factor of a system with a ?xed number of transistors all scale roughly linearly with the diameter of the smallest sphere enclosing frequently interac...