Extended Data Fig. 9: Embedded layers for computing-dense mechanical integrated circuit material.
(a) A schematic of a 2-bit adder with three stacked layers that contain the QS2, QCout, and QS1 on layers 1, 2 and 3, respectively. All layers are powered by the same Vcc terminal (cyan). (b) Experimental image showing the three layers made with cast urethane rubber substrates and Ag-TPU networks. (c) Image of commercial dual extrusion printer as it simultaneously prints the substrate and conductive network of a 2-bit adder by the layer-by-layer fabrication method. Photos of 2-bit adders as fabricated using the (d) casting and (e) additive manufacturing techniques. (f) Experimental results showing three digital input and output combinations for the cast (top) and additive manufactured (bottom) samples.
