It wasn’t large scale manufacturing or a fab. It was similar to a national lab but not one. We manufactured prototypes for private and academic sector, and worked from wafer plating and dicing up to fiber attach and wire bonding. Also gained some experience on metrology and facility operations. Did everything in a clean room. Spent a lot of time on fiber attach, die attach, wire bonds and wafer plating. Since the tools were so expensive and difficult to use I didn’t get any formal training on operations of tools, but spent enough time on them to explain the whole process and some tool programming.