Delay Analysis of Different Stretchable Interconnect Structures

Stretchable electronic systems are needed in realizing a wide range of applications, such as wearable healthcare monitoring, where stretching movements are present. Current electronics and sensors are rigid and non-stretchable. However, after integrating with stretchable interconnects, the overall system is able to withstand a certain degree of bending, stretching, and twisting. In this chapter, extraction of the parasitic parameters of a wire and an analytical model is developed based on the skin effect of stretchable interconnects. Analytical models are employed to estimate the delay of various stretchable interconnects and the results are found to be in good accuracy with the simulation results. Finally, the proposed model is employed for comparing the simulation results of circular, rectangular, triangular, and horseshoe stretchable interconnects over a wide frequency range up to 10 GHz.