STRETCH.flex

Stretchable electronics – manufacturing concept

The stretchable circuit carriers are currently manufactured as single-sided or double-sided boards. The basic manufacturing process for a single-sided circuit carrier is shown below:

TPU with laminated copper

Copper structuring

Lamination of pre-structured TPU

Surface finish and contour machining

For a single-sided circuit carrier with partial FR4 stiffener, the following procedure is performed:

Preparation of a TPU/FR4 composite with partial auxiliary material

Copper structuring

Lamination of pre-structured TPU

Surface finish and contour machining