Design and analysis of self-similar serpentine interconnects for stretchable electronics

Stretchable electronics is an emerging area that requires interconnects to offer exceptional levels of stretch ability. In this paper, we developed an analytical model to design a self-similar serpentine interconnect, and derived recursive formulae at different orders of self-similarity. To analyze the stretch ability of self-similar serpentine interconnects, the finite element method (FEM) analysis software Abaqus was utilized. The FEM simulation results showed that self-similar serpentine interconnects had high system stretch ability under the condition of large mechanical deformation.