Fabrication of ion-trap electrodes by self-terminated electrochemical etching Zhao Wang, Le Luo, Karthik Thadasina, Kim Qian, Jinming Cui and Yunfeng Huang EPJ Techn Instrum, 3 1 (2016) 3 Published online: 17 March 2016 DOI: 10.1140/epjti/s40485-016-0030-5