be found in sand we use silicon to make in round wafers and then build tiny intricate circuits on it over the course of hundreds of prophecies since billions of transistors Must be placed inside this small area it is very important to be small yet precise semiconductor making processes have evolved to reduce the width of the circuit micrometers and then nanometers at a time however there were physical limitations to improving these fine process technologies on a planar scheme as Samsung these limitations were overcome through a structural innovation called instead which uses thin share 3d transistors through this the 14 nanometer chips here develored and have further evolved today 's 10 nanometer semiconductors ten nanometers is about ten thousand times thinner than the diameter of a single human hair it canit be Seen by the naked eye