Patent ID: 6592205
Filing Date: 2003-07-15
Classification: B41J,H01L,Y10T

Abstract:
A method of manufacturing a printhead comprising the steps of:laminating first and second laminations to form an essentially rigid substrate, said first lamination being thinner than said second lamination and having a first side of said first lamination forming an external surface of said essentially rigid substrate, said second lamination being affixed to a second side of said first lamination; providing an opening in said essentially rigid substrate, said opening extending from said external surface to a second surface of said essentially rigid substrate; disposing a conducting layer at least partially on said second side; forming an ink ejection assembly including an ejector, a nozzle plate and an ink feed channel, further comprising the steps of forming a nozzle in said nozzle plate, disposing said nozzle plate on a portion of an external surface of said ink ejection assembly, disposing an ejector in association with said nozzle such that ink is ejected from said nozzle when said ejector is energized, disposing a conducting layer on a second portion of said external surface of said ink ejection assembly and coupling said conducting layer to said ejector whereby said ejector is energized, and opening an ink feed channel in an inside surface of said ink ejection assembly; disposing said ink ejection assembly in said opening and in contact with said essentially rigid substrate such that said nozzle plate and said external surface of said essentially rigid substrate are in a predetermined relationship relative to one another and said conducting layer of said ink ejection assembly is connected to said conducting layer of said essentially rigid substrate; and wherein said opening includes a first magnitude of area in said first lamination and a second magnitude of area in said second lamination, said second area magnitude being larger than said first area magnitude, whereby said opening is smaller at said first surface of said essentially rigid substrate than at said second surface of said essentially rigid substrate.