Etching a substrate: processes – Forming or treating thermal ink jet article
Reexamination Certificate
2007-07-26
2010-11-23
Ahmed, Shamim (Department: 1713)
Etching a substrate: processes
Forming or treating thermal ink jet article
C216S041000, C216S058000, C347S055000
Reexamination Certificate
active
07837886
ABSTRACT:
A method of making a printhead comprises forming a resistor strip in a heating region of the printhead. In a first portion of the heating region, a resistive layer is formed including a central resistor region interposed between two spaced apart conductive elements. In the method, a conductive layer is removed from a bus region of the printhead while protecting the first portion of the heating region.
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International Search Report for Application No. PCT/US2008/071149. Report issued Jan. 20, 2009.
Chung Bradley D.
Clark Garrett E.
Fuller Anthony M.
Shah Bhavin
Yildirim Ozgur
Ahmed Shamim
Hewlett--Packard Development Company, L.P.
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