Absolutely. There's this misconception that the development of semiconductor junctions spurred a revolution in electronics, but that's just not true. All the semiconductors do it increase the efficiency of Magic Smoke, which is the real working element in all types of components. By some 800%, actually. This enabled a much smaller device to do the same job as the older, bigger ones. As the purity of the semiconductor crystals improved, and the materials changed to even better ones, the efficiency continued to go up, so less and less volume of Magic Smoke was required to get the job done. Think about it, when some old component fails, there is copious amounts of Magic Smoke released, sometimes even flame. But blow a modern IC, and you get maybe a little divot blown out of the package where the Magic Smoke was concentrated and sometimes you don't even see the smoke as it escapes, there's such a tiny quantity.