Three dimensional microfluidic design with spincoated micrometer-thin elastomer multilayer

We propose a method to fabricate three dimensional microfluidic channel systems with spincoated micrometer-thin elastomer multilayer. We use the molecular diffusion of thin elastomer layers to our advantage and propose a microfluidic fabrication process free of molding and bonding steps. We achieved various expandable three dimensional multilayer channel designs that can have interesting applications.