Etching a substrate: processes – Forming or treating thermal ink jet article
Reexamination Certificate
2007-10-08
2008-12-23
Olsen, Allan (Department: 1792)
Etching a substrate: processes
Forming or treating thermal ink jet article
Reexamination Certificate
active
07468140
ABSTRACT:
A method of fabricating a printhead is provided in which sacrificial material is deposited on a substrate having printing nozzles formed thereon so that a first portion of the sacrificial material encases the nozzles and a second portion of the sacrificial material forms part of a printing fluid containment formation surrounding one or more of the nozzles, positioning a nozzle guard over the nozzles so as to contact the second portion of the sacrificial material, and removing the first portion of the sacrificial material.
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Olsen Allan
Silverbrook Research Pty Ltd.
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