Albert Crewe Centre for Electron Microscopy (ACCEM) We are working to extend Albert Crewe’s legacy with a strategic focus on the development of new approaches to imaging atomic scale dynamics in SEM, STEM and FIB (focused ion beam). Nanolithography Facility The nanolithography shared research facility provides equipment for the nanometre scale patterning of thin films and substrates. High precision tools include thermal scanning probe lithography and direct write laser lithography.