I can't find a long video animation depicting the process. It was a bit old, but it was so great at displaying the process of coating a layer with masks and etc

I can't find a long video animation depicting the process. It was a bit old, but it was so great at displaying the process of coating a layer with masks and etching them with acid. If I remember correctly it was repeated 5 or 7 times. After watching it, I concluded we are gods for manipulating matter at this level :)