Fabrication of Multi-Layer Silicone-Based Integrated Active Soft Electronics

3 Fabrication of Multi-Layer Silicone-Based Integrated Active Soft Electronics 

Taking one step further, the emerging field of silicone-based soft electronics has been advanced to build multilayer configurations, with the demonstration of a microfluidic, reversibly stretchable, large-area wireless strain sensor [31], 

In brief, the upper and lower microfluidic channels are respectively constructed in the top and the bottom silicone substrates, using standard soft lithography techniques. Then a number of inlets and outlets are punched. A blank middle silicone rubber slab is also prepared. The microstructured top elastomer layer is bonded to the blank silicone substrate using thermal or plasma bonding, and addition inlets are punched on the bonded elastomer sheet. The bottom silicone elastomer is bonded 

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