Figure 7
(a) Membrane mask. (b) Large-area patterning of the PMMA sheet by the proposed beam-scan method. (c) Coordinate of the measurement points. (d) Deviation of the measurement results for a 1.5 GeV operation. (e) Pattern fabricated with the 1.0 GeV operation. (f) PTFE dry etched with a 1.5 GeV operation. |