Method of forming piezo driver electrodes

Abstract

A method for forming piezoelectric transducers for inkjet printheads includes: forming at least one piezoelectric layer on a substrate; forming at least one electrode pattern by depositing a conductive material on an exposed surface of the at least one piezoelectric layer; and forming a plurality of individual piezoelectric elements from the at least one piezoelectric layer before or after the forming of the at least one electrode pattern.

Description

technical field [0001] Embodiments described herein relate generally to the field of printing, in particular inkjet printing, and in particular to the field of inkjet printhead component fabrication. Background technique [0002] Printing images onto print media such as paper for consumer and industrial use is generally dominated by laser technology and inkjet technology. Inkjet technology has become more common as the resolution and quality of inkjet printing has improved. Inkjet printers typically use thermal inkjet technology or piezoelectric technology. Even though piezo inkjet is more expensive to manufacture than thermal inkjet, piezo inkjet is generally favored due to its ability to use a wider variety of inks. [0003] A piezoelectric inkjet printhead includes an array of piezoelectric transducers attached to a flexible membrane. Other printhead structures may include one or more laser-patterned dielectric spacer layers and a flexible printed circuit ("flex circui...

AI Technical Summary

Problems solved by technology

Additional challenges of the overlay coating process arise when manufacturing piezoelectric transducers by using a thick film process: a thick film process is a process that does not start with a plate, the piezoelectric material is stenciled or printed onto the substrate, as a separate patch

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