Piezoelectric ink jet head having electrodes connected by anisotropic adhesive

An ink-jet head having a plurality of ink pressurizing cells, each being for a containment of ink, said ink-jet head comprising:

• a plurality of sidewalls, each of said sidewalls forming a respective longitudinal sidewall of a respective one of said plurality of ink pressurizing cells, and each being subjectable to shear deformation to impart a pressure pulse to said ink pressurizing cells;
• a bottom wall forming a bottom lateral wall of said plurality of ink pressurizing cells;
• a top wall forming a top lateral wall of said plurality of ink pressurizing cells;
• and
• a front wall forming a front longitudinal wall of said plurality of ink pressurizing cells, and having a plurality of orifices, each of said orifices passing through said front wall, the ink in said ink pressurizing cells being ejectable from the ink pressurizing cells and through said orifices when the pressure pulse is imparted to said ink pressurizing cells;
• each of said plurality of sidewalls comprising:
• a first wall section made from a piezoelectric material, and having a width, and an upper surface,
• a first electrode disposed on the upper surface of said first wall section and having a width, with the width of said first electrode being narrower than the width of said first wall section, and said upper surface of said first wall section having a first side area which is not covered by said first electrode,
• an anisotropic adhesive disposed on said first electrode and said first side area of said first wall section,
• a second electrode disposed on said anisotropic adhesive, and having a width, and
• a second wall section made from a piezoelectric material, and having a width and a lower surface, and having said second electrode disposed on the lower surface thereof, with the width of said second electrode being narrower than the width of said second wall section, and with the lower surface of said second wall section having a second side area which is not covered by said second electrode;
• wherein said anisotropic adhesive is conductive only in a direction perpendicular to said upper surface of said first wall section and said lower surface of said second wall section, and said anisotropic adhesive covers said first electrode and said second electrode so that said first electrode and said second electrode are not exposed to the ink in said ink pressurizing cells.