IP Library › Granted Patent US 8,117,751
Granted Patent B2
US 8,117,751 · App. 12/501,473 · Granted Feb 21, 2012

Method of forming printhead by removing sacrificial material through nozzle apertures

Assignee: Silverbrook Research Pty Ltd
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Quick Facts
Patent No.
US 8,117,751
App. No.
12/501,473
Granted
Feb 21, 2012
Kind
B2
Abstract

A method of fabricating an inkjet printhead by forming a plurality of actuators on a monolithic substrate, covering the actuators with a sacrificial material, covering the sacrificial material with a printhead surface layer, defining a plurality of nozzle apertures in the printhead surface layer such that each of the actuators corresponds to one of the nozzle apertures and then, removing at least some of the sacrificial material on each of the actuators through the nozzle aperture corresponding to each of the actuators.

Claims (6)

1. A method of fabricating an inkjet printhead comprising the steps of:

forming a plurality of actuators on a monolithic substrate;

covering the actuators with a sacrificial material;

covering the sacrificial material with a printhead surface layer;

defining a plurality of nozzle apertures in the printhead surface layer such that each of the actuators corresponds to one of the nozzle apertures; and,

removing at least some of the sacrificial material on each of the actuators through the nozzle aperture corresponding to each of the actuators.

Assignments (3)
CHANGE OF NAME Recorded Jun 25, 2014
From: ZAMTEC LIMITED
To: MEMJET TECHNOLOGY LIMITED
Reel/Frame 033244/0276 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2012
From: SILVERBROOK RESEARCH PTY. LIMITED AND CLAMATE PTY LIMITED
To: ZAMTEC LIMITED
Reel/Frame 028522/0857 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 12, 2009
From: SILVERBROOK, KIA
To: SILVERBROOK RESEARCH PTY LTD
Reel/Frame 022943/0324 →
Priority Claims (2)
AU PO7991 · Jul 15, 1997 · national
AU PO8004 · Jul 15, 1997 · national
Continuity (7)
Continuation In Part 11926109 · Oct 28, 2007
Continuation 11778572 · Jul 16, 2007
Continuation 11349074 · Feb 8, 2006
Continuation 10982789 · Nov 8, 2004
Continuation 10421823 · Apr 24, 2003
Continuation 09113122 · Jul 10, 1998
Related Publication 20090275151A1 · Nov 5, 2009