Fish & Richardson P.C.
Passivation of ring electrodes
An inkjet device includes a pumping chamber bounded by a wall, a piezoelectric layer disposed above the pumping chamber, a ring electrode having an annular lower portion disposed on the piezoelectric layer. A moisture barrier layer covers a remainder of the piezoelectric layer over the pumping chamber that is not covered by the annular lower portion of the ring electrode.
FUJIFILM Corporation
B B B B B
B41J B41J B41J B41J B41J
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Jeffrey Yoshikazu Youming
Birkmeyer Hishinuma Li