Patent ID: 6732433
Filing Date: 2004-05-11
Classification: B41J,Y10T

Abstract:
A method of manufacturing an orifice plate for an inkjet printhead having a substrate and a thin-film structure carried on said substrate, the thin-film structure including energy-dissipating elements for providing energy for ejecting printing fluid from said printhead during a printing event, and the thin-film structure defining a surface disposed away from said substrate, wherein the orifice plate manufacturing method includes:originally forming the orifice integral with other orifice plates connected along their perimeters in a single layer array to form an intermediate workpiece, each orifice plate including a plurality of upstanding spaced apart peripheral rib members for attachment to said thin-film structure, and further including a plurality of wall portions having upstanding barriers which define multiple chambers for receiving printing fluid, said wall portions of said orifice plate also defining a plurality of orifices respectively separated by said upstanding barriers; creating mutually coplanarized end edges on said upstanding barriers by contact with an abrasive member wherein said end edges present an abrasively truncated smooth surface for engagement contact with said thin-film structure; and separating an individual orifice plate from the single layer array of said intermediate workpiece for attachment to said thin-film structure.