Patent ID: 7736592

Claim:
A process for producing a microfluidic device, said process comprising: providing a substrate with a non-planar surface; writing a first flowable material on the non-planar surface of the substrate; solidifying the first flowable material to form spacer elements, each with a top surface distal from the non-planar surface of the substrate; writing a second flowable material on the non-planar surface of the substrate, wherein said writing the first flowable material and the second flowable material is carried out by micro-capillary deposition; providing a cover having a surface; applying the cover to the substrate, whereby the surface of the cover contacts the top surfaces of the spacer elements; and solidifying the second flowable material to form walls, whereby the walls, the non-planar surface of the substrate, and the surface of the cover form flow channels of a microfluidic device.