Metal working – Method of mechanical manufacture – Fluid pattern dispersing device making – e.g. – ink jet
Reexamination Certificate
2006-05-11
2008-10-21
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Fluid pattern dispersing device making, e.g., ink jet
C029S852000, C216S027000, C216S039000, C347S020000, C347S044000, C347S047000
Reexamination Certificate
active
07437820
ABSTRACT:
A charge plate is fabricated for a continuous ink jet printer print head by applying an etch-stop to one of the opposed sides of an electrically non-conductive substrate. An array of charging channels are etched into the substrate through the etch-stop layer adjacent to predetermined orifice positions. The charging channels are passivated by depositing a dielectric insulator into the charging channels; and electrical leads are formed by coating the passivated charging channels with metal. A second etch-stop layer is applied to the other of the opposed sides of the substrate, and an array of orifices is formed through the orifice plate substrate at the predetermined orifice positions. The orifices extend between the opposed sides.
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Baumer Michael F.
Guan Shan
Harrison, Jr. James E.
Sexton Richard W.
Eastman Kodak Company
Tugbang A. Dexter
Zimmerli William R.
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