LIQUID JET HEAD, LIQUID JET APPARATUS AND METHOD OF MANUFACTURING LIQUID JET HEAD

摘要

A liquid jet head includes a piezoelectric body substrate having a plurality of groove arrays, in each of which ejection grooves penetrating from the upper surface to the lower surface are arrayed in a reference direction, drive electrode provided on side faces of the ejection grooves, and terminal electrodes provided on the lower surface, and electrically connected to the drive electrodes; and a flexible circuit board electrically connected from the terminal electrodes, and connected to the lower surface of the piezoelectric body substrate. The piezoelectric body substrate includes a first opening portion that penetrates from the upper surface to the lower surface between the plurality of groove arrays, and the flexible circuit board is led out from the lower surface to the upper surface of the piezoelectric body substrate through the first opening portion.

主权项

1. A liquid jet head comprising:
a piezoelectric body substrate having
a plurality of groove arrays, in each of which ejection grooves penetrating from an upper surface to an lower surface are arrayed in a reference direction,drive electrodes provided on side faces of the ejection grooves, andterminal electrodes provided on the lower surface, and electrically connected to the drive electrodes; and a flexible circuit board electrically connected from the terminal electrodes, and connected to the lower surface of the piezoelectric body substrate, wherein the piezoelectric body substrate includes a first opening portion that penetrates from the upper surface to the lower surface between the plurality of groove arrays, and the flexible circuit board is led out from the lower surface to the upper surface of the piezoelectric body substrate through the first opening portion.