If a particular manufacturing step requires a vaccuum, you can always just pump all the undesirable atoms out with a pump.
All? This sounds like something from someone who’s never worked with vacuums. Vacuums are expensive and asymptotic. Whether or not you can get “enough of” the undesirable atoms out is still a question for many nanotech applications.
All? This sounds like something from someone who’s never worked with vacuums. Vacuums are expensive and asymptotic. Whether or not you can get “enough of” the undesirable atoms out is still a question for many nanotech applications.