Building interactive systems using unconventional electronics

The wet etching and physical stripping methods are typical methods to release independent SU-8 structures. However, it is difficult to release SU-8 structures by chemically etching sacrificial layers under the large footprint area especially, ...

Methods of releasing the large-area structures. (a) Preparation of SU-8 thin structures. (b) Exposure. (c-1) Peeling off the thin structures by using a razor blade. (c-2) Spin-coating of another thick SU-8 layer. (d) Exposure. (e) ...

• A release technique without any sacrificial layers is developed to release the SU-8 structures from the glass substrate.
• The thin SU-8 layers with their thickness <95 μm are released by merely using the glass substrate.
• The thick ...

Graphical abstract We present a process for direct nanoimprint lithography from one roll to another.The roll-to-roll nanoimprint lithography was conducted in a step-and-repeat manner.We fabricated nanopatterns on a substrate roll of 250-mm diameter and ...

We investigated the hydrophilicity of a large-area, transparent poly-(ethylene terephthalate) (PET) film with a pillar-like nanostructure; the hydrophilicity of the nanostructure was maintained even when it was covered with a large amount of water (30g)...