he SEM pin stubs for the Zeiss and LEO SEMs, CrossBeams or SEM/FIB systems use a 6mm short pin. The pin diameter for all Zeiss SEM pin stubs is 3.2mm (1/8”) diameter. They are made from high quality, vacuum grade aluminium. The Zeiss SEM pin stubs are manufactured according to original specifications for the pin stubs and additional style are added to enable a wide range of applications. The most popular Zeiss pin stubs are the pin stubs with the 12.7 and 25.4mm top diameter. Most of the flat Zeiss SEM pin stubs have a 3.2mm platform height and a groove to enable easy holding and handling.