Head chip, liquid jet head, and liquid jet recording apparatus

A head chip comprising:

• a jet hole plate which is penetrated by a plurality of jet holes in a first direction, and in which the plurality of jet holes is arranged side by side in a second direction crossing the first direction;
• and
• an actuator plate facing the jet hole plate in the first direction, and having a plurality of pressure chambers formed between the actuator plate and the jet hole plate, the plurality of pressure chambers respectively communicating with the plurality of jet holes, wherein
• the actuator plate includes
• an opposed portion having a first surface facing the plurality of pressure chambers in the first direction and a second surface facing an opposite side to the first direction with respect to the first surface, and disposed in a state of being separated in the first direction from the jet hole plate,
• a partition portion formed integrally with the opposed portion, protruding from the opposed portion in the first direction, and configured to separate the pressure chambers adjacent in the second direction to each other,
• a first electrode provided on an inner surface of a first groove formed at a position facing each of the plurality of pressure chambers when viewed from the first direction on the first surface, and
• a second electrode provided on an inner surface of a second groove formed at a position overlapping each of the partition portions when viewed from the first direction on the second surface, and
• at least a part of the partition portion is disposed at a position which does not overlap a drive portion when viewed from the first direction, the drive portion being located between the first groove and the second groove adjacent in the second direction to each other in the opposed portion.