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Table 1 The dependence of surface roughness on the etching voltages

From: Fabrication of ion-trap electrodes by self-terminated electrochemical etching

Voltage(V) Ra(nm) Rq(nm) Rt(nm)
1 145 183 1096
2 88.9 116 964
3 40.5 50.9 375
4 18.8 24.8 171
5 17.3 22.4 189
6 6.63 8.72 67.8
7 9.6 16.0 246
8 47 63.8 1787
10 182 255 2086
12 110 143 988
14 306 376 1728