Coating apparatus – Control means responsive to a randomly occurring sensed... – Responsive to attribute – absence or presence of work
Reexamination Certificate
2005-08-02
2005-08-02
Fiorilla, Chris (Department: 1734)
Coating apparatus
Control means responsive to a randomly occurring sensed...
Responsive to attribute, absence or presence of work
C118S325000, C118S046000, C347S055000, C347S009000, C347S019000, C347S075000
Reexamination Certificate
active
06923866
ABSTRACT:
An apparatus for depositing droplets on a substrate is disclosed. The apparatus includes a support for the substrate, a droplet ejection assembly which includes a pumping chamber, a controller and a source of static pressure to maintain the total pressure in the pumping chamber above a threshold pressure level to avoid rectified diffusion type bubble growth in the pumping chamber. The droplet ejection assembly is positioned over the support for depositing the droplets on the substrate and includes, in addition to a pumping chamber, a displacement member and an orifice that ejects the droplets. The controller provides signals to the displacement member to eject drops.
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Barss Steven H.
Biggs Melvin L.
Hoisington Paul A.
Fiorilla Chris
Fish & Richardson P.C.
Spectra Inc.
Tadesse Yewebdar
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