Patent ID: 8962487
Filing Date: 2015-02-24
Classification: B81B,B81C

Abstract:
1. A method for fabricating in a substrate at least two empty microchannels closed over at least part of their length, comprising: a step of producing a single pattern on the surface of a bottom layer, said single pattern having a width (L) of between 5 and 1000 μm, a step of producing a pair of patterns on said surface of a bottom layer, wherein the patterns in the pair are spaced apart by a distance (L) not exceeding 5 μm, and depositing a layer of polymer material in a single step simultaneously on top of said bottom layer, said single pattern, and said pair of patterns by polymerizing an organic or organometallic monomer containing siloxane functional groups in a plasma-enhanced chemical vapor deposition reactor so as to create between the two patterns in said pair, without a development step to decompose the two patterns in said pair, a first empty microchannel having a width (L) not exceeding 5 μm, and a development step to decompose said single pattern so as to create, in place of said single pattern, a second empty microchannel having a width (L) of between 5 and 1000 μm.