Figure 12.

Core–shell pillar elastic modulus E_C.S vs. shell thickness normalized to the core–shell pillar radius r_C.S according to Equation (12) for the case of (i) stiff core/compliant shell (E_C = 300 GPa/E_S = 30 GPa) (blue line) as for pillar FEBID and FIBID, and (ii) compliant core/stiff shell (E_C = 30 GPa/E_S = 300 GPa) (orange dotted line) as may happen for e-beam curing. The total diameter 2r_C.S was kept constant. The inset shows the cross-section geometry related to Equation (12). Furthermore, three core–shell cross-sections were visualized for indicated shell thicknesses to pillar radii. For discussion, see text.