Affiliation: | 1. KTH Royal Institute of Technology, Microsystem Technology Laboratory, 10044 Stockholm, Sweden;2. KTH Royal Institute of Technology, Engineering Materials Physics Laboratory, 10044 Stockholm, Sweden;3. FEI Electron Optics, Achtseweg Noord 5, 5600 KA Eindhoven, The Netherlands;4. KTH Royal Institute of Technology, Integrated Devices and Circuits, 16440 Kista, Sweden |