Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2011-06-07
2011-06-07
Stephens, Juanita D (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S044000
Reexamination Certificate
active
07954927
ABSTRACT:
An improved photoimaged nozzle plate for a micro-fluid ejection head, a micro-fluid ejection head containing the nozzle plate, and methods for making a micro-fluid ejection head. The improved nozzle plate is provided by a photoresist nozzle plate layer applied to a thick film layer on a semiconductor substrate containing fluid ejector actuators. The photoresist nozzle plate layer has a plurality of nozzle holes therein. Each of the nozzle holes are formed in the nozzle plate layer from an exit surface of the nozzle plate layer to an entrance surface of the nozzle plate layer. Each of the nozzle holes has a reentrant hole profile with a wall angle greater than about 4° up to about 30° measured from an axis orthogonal to a plane defined by the exit surface of the nozzle plate layer.
REFERENCES:
patent: 4394670 (1983-07-01), Sugitani et al.
patent: 5198834 (1993-03-01), Childers et al.
patent: 5686224 (1997-11-01), O'Neill
patent: 6024440 (2000-02-01), Murthy et al.
patent: 6162589 (2000-12-01), Chen et al.
patent: 6204182 (2001-03-01), Truninger et al.
patent: 6303274 (2001-10-01), Chen et al.
patent: 6406607 (2002-06-01), Hirsh et al.
patent: 6520627 (2003-02-01), Chen et al.
patent: 6520628 (2003-02-01), McClelland et al.
patent: 6558968 (2003-05-01), Ramamoorthi et al.
patent: 6644789 (2003-11-01), Toews, III
patent: 6682874 (2004-01-01), Ramaswami et al.
patent: 6902259 (2005-06-01), Chen et al.
patent: 7152951 (2006-12-01), Maher et al.
patent: 7364268 (2008-04-01), Hart et al.
patent: 2004/0100535 (2004-05-01), Song et al.
patent: 2005/0035999 (2005-02-01), Kitahara et al.
patent: 64018651 (1989-01-01), None
patent: 08118657 (1996-05-01), None
Hart Brian C.
Holt, Jr. Gary A.
Waldeck Melissa M.
Weaver Sean T.
Williams Gary R.
Lexmark International Inc.
Stephens Juanita D
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