LIQUID JET HEAD CHIP, LIQUID JET HEAD, LIQUID JET RECORDING DEVICE AND LIQUID JET HEAD CHIP FORMING METHOD

To provide a liquid jet head chip that can exert stable discharging performance.SOLUTION: The liquid jet head chip comprises an actuator plate and electrodes. The actuator plate has a front surface, a rear surface and a plurality of discharge channels penetrating in a thickness direction in which the front surface is joined to the rear surface, provided separately from and adjacently to each other in a first direction orthogonal to the thickness direction and extended respectively in a second direction orthogonal to both of the thickness direction and the first direction. The electrode has a first electrode part provided on an inner surface of the discharge channel and covering the inner surface of the discharge channel continuously, from the front surface toward the rear surface, and a second electrode part covering continuously the inner surface of the discharge channel from the rear surface toward the front surface and overlapping with at least part of the first electrode part.SELECTED DRAWING: Figure 6B 【課題】安定した吐出性能を発揮することができる液体噴射ヘッドチップを提供する。【解決手段】この液体噴射ヘッドチップは、アクチュエータプレートと、電極とを備える。アクチュエータプレートは、表面と、裏面と、表面と裏面とを繋ぐ厚さ方向に貫通すると共に厚さ方向と直交する第１の方向において互いに離間して隣り合うように設けられ、厚さ方向および第１の方向の双方と直交する第２の方向にそれぞれ延在する複数の吐出チャネル、を有する。電極は、吐出チャネルの内面に設けられており、吐出チャネルの内面を、表面から裏面に向けて連続的に覆う第１の電極部分と、吐出チャネルの内面を、裏面から表面に向けて連続的に覆うと共に第１の電極部分の少なくとも一部と重なり合う第２の電極部分とを有する。【選択図】図６Ｂ