Ink jet recording head with delaminating feature

摘要

An ink jet recording head is made by laminating on a substrate a cured photosensitive resin film for forming ink pathways on the substrate and a cover of said pathways are provided. In the head, the thicknesses of the wall defining the ink pathways, the grooves and the spaces are not more than 15 times the thickness of the cured photosensitive resin film. Such ratio of the wall thickness to the film thickness and the existence of grooves and spaces serve to prevent the peeling-off at the lamination interfaces.