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US 6,663,232 B2Granted
Configuration of ink jet print head capable of reliably maintaining its continuity
AssigneeHitachi Printing Solutions, Ltd.
InventorsNorimasa Kondo, Yasuo Takano
Life of this patent
Estimating the term…
Abstract
An ink jet print head 1 includes a laminated piezoelectric element 31. The piezoelectric element 31 is fixedly attached to electrodes 33 by electrically conductive adhesive 32. A flexible printed cable 16 is electrically connected to electrodes 35 by soldering. The stationary plate 15 is formed with through holes 36, which are filled with an electrically conductive filler 34. The filler 34 and the electrodes 33, 35 are formed of tungsten, and the electrodes 33, 35 are plated with gold.
Claims7
An ink jet print head comprising:
- a stationary plate having a first surface and a second surface opposite to the first surface,
- a first electrode provided on the first surface;
- and
- a laminated piezoelectric element mounted on the first surface, the laminated piezoelectric element being electrically connected to the first electrode via an electrically conductive adhesive, wherein
- the first electrode is formed of one of tungsten and molybdenum-manganese alloy.
2 more elements
A producing method of producing an ink jet print head, comprising the steps of:
- a) forming a plurality of through holes in a green sheet, the through holes having first ends opened to a first surface of the green sheet and second ends opened to a second surface of the green sheet;
- b) filling in the through holes with filler, wherein the filler is one of tungsten and molybdenum-manganese alloy;
- c) forming a plurality of first electrodes on the first ends from one of tungsten and molybdenum-manganese alloy;
- d) forming a plurality of second electrodes on the second ends from one of tungsten and molybdenum-manganese alloy;
- e) plating the first and second electrodes with gold;
- f) placing a laminated-piezoelectric block on the first surface;
- g) applying an electrically conductive adhesive over the first surface and the first electrodes;
- and
- h) dicing the laminated-piezoelectric block into a plurality of laminated piezoelectric elements.
6 more elements
Dependencies are inferred from the claim text.