Liquid jet apparatus and method for manufacturing liquid jet apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorToru Kakiuchi
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Abstract
There is provided a liquid jet apparatus including a channel substrate having a plurality of pressure chambers and a film covering the plurality of pressure chambers, a piezoelectric layer, a plurality of individual electrodes, a common electrode, and a trace extending from one of the plurality of individual electrodes to pass through between two adjacent individual electrodes of the plurality of individual electrodes. An opening of the piezoelectric layer is provided between the two adjacent individual electrodes, and a metallic film is formed to cover the trace in such an area of the trace as to overlap with the opening positioned between the two adjacent individual electrodes.
Claims9
A liquid jet apparatus comprising:
- a film;
- a first piezoelectric element arranged on the film;
- a second piezoelectric element arranged on the film;
- a third piezoelectric element arranged on the film;
- a trace connected with the first piezoelectric element;
- and
- an electrode arranged on the film,
- wherein the second piezoelectric element and the third piezoelectric element are aligned along a first direction,
- wherein the first piezoelectric element is offset from the second and the third piezoelectric element in a second direction orthogonal to the first direction,
- wherein the first piezoelectric element includes a first piezoelectric portion,
- wherein the second piezoelectric element includes a second piezoelectric portion,
- wherein the third piezoelectric element includes a third piezoelectric portion,
- wherein the trace includes an end, in the second direction, which is connected to the electrode and a portion which is offset from the end in the second direction,
- wherein the electrode is located between the film and the first piezoelectric portion in a third direction orthogonal to the first and second direction,
- wherein the portion of the trace is located between the second piezoelectric portion and the third piezoelectric portion in the first direction, and
- wherein the portion of the trace is covered with a metallic film.
Dependencies are inferred from the claim text.