Ink jet head and method of producing the same

An ink jet head comprising:

• a substrate;
• a plurality of nozzles;
• a plurality of ink passageways each being communicated to a respective one of said plurality of nozzles;
• a vibration plate positioned in a part of each of said plurality of ink passageways;
• a plurality of independent electrodes formed on said substrate and facing said vibration plate;
• and
• a common electrode formed on said vibration plate;
• wherein a drive voltage is applied between said common electrode and any one of said plurality of independent electrodes for causing said vibration plate to electrostatically deform, thereby ejecting a drop of ink from one of said plurality of nozzles associated with the one independent electrode, wherein said vibration plate comprises single crystal Si while said substrate comprises glass having a coefficient of linear expansion close to a coefficient of linear expansion of said single crystal Si at temperatures between 200° C. and 400° C., and wherein after said single crystal Si has been bonded to said substrate by anodic bonding, said single crystal Si is thinned to a preselected thickness by etching or grinding, and then an ink passageway, ink chamber and nozzle section is adhered or bonded to said substrate.