Metal working – Piezoelectric device making
Reexamination Certificate
2005-11-01
2005-11-01
Tugbang, A. Dexter (Department: 3729)
Metal working
Piezoelectric device making
C029S890100, C029S846000, C029SDIG001, C029SDIG001, C219S121670, C219S121680, C347S068000, C427S096100, C427S097700, C427S098400
Reexamination Certificate
active
06959471
ABSTRACT:
A method of manufacturing an ink jet print head includes the steps of bonding a body of piezoelectric material to a base plate and cutting channels into the piezoelectric material to form ink chambers which are actuated by applying voltages to electrodes provided on surfaces of the chambers. The base plate carries IC's which contain the drive circuitry for actuating the ink chambers. To ensure reliable electrical connection between the chamber electrodes and the IC's, the electrodes and conducting tracks on the base plate are formed in a single step by depositing a conductive layer over both the PZT body and the base plate. A step of masking or selective removal of material may be performed to achieve the necessary patterning of the electrodes and tracks.
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Condie Angus
Drury Paul R.
Harvey Robert A.
Omer Salhadin
Shepherd Mark R.
Marshall & Gerstein & Borun LLP
Tugbang A. Dexter
Xaar Technology Limited
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