Coating processes – Electrical product produced – Piezoelectric properties
Reexamination Certificate
2007-09-11
2007-09-11
Hendricks, Keith (Department: 1762)
Coating processes
Electrical product produced
Piezoelectric properties
C427S287000, C427S385500
Reexamination Certificate
active
10630887
ABSTRACT:
A method is provided for manufacturing a piezoelectric/electrostrictive film device including a ceramic substrate and a piezoelectric/electrostrictive operation portion including a lower electrode, a piezoelectric/electrostrictive layer, and upper electrode stacked on the substrate. The piezoelectric/electrostrictive layer is formed to extend beyond at least one of electrodes to form projected portions at its ends. The method includes the steps of forming the piezoelectric/electrostrictive layer so that ends of the piezoelectric/electrostrictive layer are projected to extend beyond ends of at least one electrode, applying a coating liquid in a sufficient amount so that the coating liquid permeates through a gap between at least the projected end portion of the piezoelectric/electrostrictive layer and the substrate, and so as to coat a predetermined portion of the at least one electrode, and drying the applied coating liquid to form a coupling member to couple the projected end portions of the piezoelectric/electrostrictive layer to the substrate.
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Bessho Yuki
Murasato Masahiro
Ohnishi Takao
Takahashi Nobuo
Burr & Brown
Hendricks Keith
Lin Jimmy
NGK Insulators Ltd.
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