Printhead having a thin film membrane with a floating section

Details Printhead having a thin film membrane with a floating section Printhead having a thin film membrane with a floating section

2005-12-13

2005-12-13

Hassanzadeh, Parviz (Department: 1763)

Etching a substrate: processes

Forming or treating thermal ink jet article

Reexamination Certificate

active

06974548

ABSTRACT:
A printhead including a printhead substrate having at least one opening formed in a first surface to provide a fluid path through the substrate. The printhead further includes a thin film membrane formed on a second surface of the substrate. The thin film membrane includes a plurality of fluid ejection elements and has a floating section and a cantilevered section, which are detached and separated from one another by a gap.

REFERENCES:
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patent: 6402301 (2002-06-01), Powers et al.
patent: 6419346 (2002-07-01), Nikkel
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patent: 6627467 (2003-09-01), Haluzak et al.
patent: 6782621 (2004-08-01), Giere et al.
patent: 2002/0101479 (2002-08-01), Giere et al.
patent: 1078754 (2001-02-01), None
European Search Report, Application No. EP 02 02 3964, mailed Sep. 1, 2003.

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