Metal working – Method of mechanical manufacture – Fluid pattern dispersing device making – e.g. – ink jet
Reexamination Certificate
2008-07-15
2008-07-15
Cazan, Livius R. (Department: 3729)
Metal working
Method of mechanical manufacture
Fluid pattern dispersing device making, e.g., ink jet
C347S061000, C438S021000
Reexamination Certificate
active
11026046
ABSTRACT:
A method for forming a printhead having a very high dot-per-inch printing capability is described. The method includes forming a layer containing electronic control circuits upon a semiconductor wafer. Nozzle chambers are then etched into the wafer and corresponding fluid ejection assemblies are formed for each nozzle chamber. Ink inlets for the nozzle chambers are produced by back-etching through the wafer. Steps for fabricating thermal bend actuators to eject ink from the nozzles are also described.
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Cazan Livius R.
Silverbrook Research Pty Ltd
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