What Happened To 450mm?

By Mark LaPedus, Ed Sperling & Katherine Derbyshire There was a time not very long ago—one process node, in fact—when the economic momentum of Moore’s Law seemed unstoppable with a combination of extreme ultraviolet lithography, larger wafer sizes and a variety of new materials. Shrinking feature sizes is still technically possible, but certainly not with the same promised economic benef... » read more