Patent ID: 6325491
Filing Date: 2001-12-04
Classification: B41J

Abstract:
An inkjet printhead comprising:a substrate having a plurality of individual ink ejection elements formed on a first surface of said substrate, said ink ejection elements electrically connected to bond pads on said substrate;a barrier layer formed on said first surface of said substrate, said barrier layer defining a plurality of individual ink ejection chambers, said barrier layer patterned to provide isolation of the bond pads on the substrate while allowing access to the bond pads through a barrier opening pattern; anda flexible circuit having electrical traces formed thereon, said electrical traces having leads attached to said bonds pads; said flexible circuit overlaying and affixed to said barrier layer such that a plurality of nozzles formed in a nozzle member portion of said flexible circuit, such that said nozzles align with said ink ejection chambers and said ink ejection elements.