The design was electrochemicaly micromachined on a 150x150mm stainless steel plate. The overall dimension of the circuit is 40x30mm. The profile of the micro channels is almost hemicircular with a 50 µm width a depth of 20 µm. On the left sample collector pad a blue tinted water droplet was deposited, its shape illustrates the astonishing wetting behavior of the micropatterned surface.
This stainless steel plate will be mirrored by nickel electroforming to create a master for polymeric molding.