Fig. 5. SEM observation of (a) side view and (b) bottom view of successive deposition of aluminum droplets; (c) enlarged side view of the section of the printed metal trace in (a); (d) fracture of two neighboring droplets; (e) cross-section of two droplets successive deposition; (f) enlarged view of the selected section in (e).

Fig. 5. SEM observation of (a) side view and (b) bottom view of successive deposition of
aluminum droplets; (c) enlarged side view of the section of the printed metal trace in (a); (d)
fracture of two neighboring droplets; (e) cross-section of two droplets successive deposition; (f)
enlarged view of the selected section in (e).