> With some work, and a ton of HEPA air purifier machines, you could probably turn an area the size of a small shed or 1 car garage into a class 10000 cleanrom pretty easily.

I wonder if it would be possible to automate the entire process with robotics and reduce the effective "clean" space even further.

There was this post a while back about a company that used thin cassettes to keep the wafers clean when moving between process steps.