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. 2018 Dec 26;5(1):172. doi: 10.18063/ijb.v5i1.172

Figure 4.

Figure 4

(A) Polyurethane etch resist for a circuit is printed by electrohydrodynamic (EHD) before etching the metal layer. (B) EHD printed array of source or drain electrode pairs after deposition of resist layer, etching of metal, and stripping the resist (adapted from Park et al.[9]). (C) Surface morphology of the edge of the silver tracks scanned by scanning electron microscope at a magnification of ×5000 (adapted from Wang et al.). (D) A printed coated resistor. (E) A printed interdigitated capacitor. (F) A printed spiral inductor (adapted from Wang et al.[30]).