Epitaxy is one of the fundamental processes used to make all kinds of semiconductor devices: LEDs, power electronics and, of course, microchips.
The term epitaxy means, roughly speaking, “adding order” and that’s exactly what it does. Hot gases react on a surface to “grow” a layer that precisely matches the underlying crystal structure.
Epitaxy was first used in chipmaking to grow ultrapure silicon films – the starting point for making high-performance CMOS transistors. Today, we use epitaxy for a whole lot more.
In this video, three of Applied’s researchers, David Carlson, Yihwan Kim and Errol Sanchez, delve into the past, present and future of epitaxy technology.