Patent ID: 7357864

Claim:
A microfluidic device comprising a substrate, a porous resin layer having a three-dimensional mesh structure, a channel and a cover; wherein, said microfluidic device (I) has said porous resin layer in the upper portion of the substrate, (II) said porous resin layer is filled with a curable resin of an activating energy beam-curable resin composition (X) impregnated excluding the channel portion, and (III) the channel has wall surfaces consisting of a porous resin layer having a three-dimensional mesh structure that is not filled with activating energy beam-curable resin composition (X), a curable resin layer of the activating energy beam-curable resin composition (X) formed in the upper portion of the porous resin layer having a three-dimensional mesh structure filled with the curable resin of activating energy beam-curable resin composition (X), and a cover, and is formed into the form of a cavity.