| 摘要 |
PURPOSE: A high density electricity interconnector using a flexible circuit and a dielectric under fill for a printing device is provided to use an under fill after attaching a flexible circuit so that removing a separator from the top of a piezoelectric element is not needed. CONSTITUTION: A method for forming an inkjet print head comprises next steps. A piezoelectric element array including a plurality of piezoelectric elements is attached on a diaphragm(36). A plurality of conductive flexible printed circuit electrodes of the flexible printed circuit is electrically joined to a plurality of conductive piezoelectric elements for forming one or more spaces in between the diaphragm and a flexible printed circuit. A liquid under fill is distributed into the inside of the one or more spaces between the diaphragm and a flexible printed circuit. The liquid under fill is solidified for sealing the piezoelectric elements in the inside of the liquid under fill.
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