Ultra-Thin Mems Packaging Based on Auxetic Stretchable Structures for Applications in Wearable Electronics

This paper reports a new packaging method based on auxetic structures, intended for highly stretchable wearable devices incorporating ultra-thin MEMS components. The auxetics are a class of mechanical metamaterials with a negative Poisson’s ratio. Thus, auxetics exhibit the specific property of becoming wider when stretched and narrower when compressed. Such a feature makes auxetic structures conformable, yet flexible and stretchable. Owing to the specific features, the demonstrated integration method of ultra-thin MEMS components that is based on the use of auxetic structures can be very promising for wearable electronic devices.