Stretchable electronics need stretchable wiring membranes that are equivalent to printed wiring boards but with elastically stretchable insulators and multilevel metallization. We have developed technology for elastically stretchable two-level metallization on an elastomeric membrane. Two levels of conductors were separated by a photopatternable elastomeric dielectric and connected through via holes. They were evaluated at uniaxial tensile strains of up to 30% and then used to create an elastomeric resistor-inductor-capacitor (RLC) circuit, whose alternating-current (AC) response was measured at biaxial tensile strains of up to 6%. We describe the fabrication process, morphology, and electrical performance of the bilevel metallization and the RLC circuit.
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