a method for producing a microfluidic device includes : a ) forming a carrier plate in an injection compression molding tool ; b ) arranging at least one functional element on one side of the carrier plate ; c ) forming a cover plate in an injection compression molding tool , wherein the injection compression molding tool is the same or different than that used to form the carrier plate ; and d ) arranging the cover plate on the carrier plate to cover the at least one functional element and to seal the fluidic device in an airtight manner .