Metal working – Method of mechanical manufacture – Fluid pattern dispersing device making – e.g. – ink jet
Reexamination Certificate
2011-07-19
2011-07-19
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Fluid pattern dispersing device making, e.g., ink jet
C430S270100
Reexamination Certificate
active
07979987
ABSTRACT:
A method of manufacturing a fluid ejection device includes providing a barrier layer and an orifice layer on a substrate, laminating a layer of photo-resist over a substantially planar surface of the orifice layer, forming an orifice in the orifice layer, and forming a counterbore in the layer of photo-resist, with forming a counterbore in the layer of photo-resist including exposing a portion of the substantially planar surface of the orifice layer within the counterbore.
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Donaldson Jeremy
Giri Manish
Keese William A.
Shaarawi Mohammed
Strand Thomas R.
Hewlett--Packard Development Company, L.P.
Tugbang A. Dexter
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