Patent ID: 6306671
Filing Date: 2001-10-23
Classification: B41J

Abstract:
A method of manufacture of an ink jet printhead arrangement including a series of nozzle chambers, said method comprising the steps of:(a) utilizing an initial semiconductor wafer having an electrical circuitry layer and a buried epitaxial layer formed thereon on;(b) etching a nozzle chamber in said wafer and said electrical circuitry layer;(c) depositing and etching a layer of sacrificial material, filling said nozzle chamber;(d) depositing and etching a layer of shape memory alloy forming a conductive paddle structure over said nozzle chamber attached to said electrical circuitry layer;(e) back etching said semiconductor wafer to said epitaxial layer;(f) etching said epitaxial layer to define a nozzle ejection hole therein interconnecting with said nozzle chamber;(g) etching away said sacrificial layers.