| 摘要 |
In the step of forming an external connection electrode, at one end of each ink chamber (26), conductive resin (10) is applied into a plurality of ink chambers (26) and onto a plurality of protruding surfaces of a piezoelectric substrate (60) so as to form a single straight line to vertical intersect the direction of extension of the ink chambers (26). After this, abrasive finishing or grinding is performed to remove the conductive resin (10) from the protruding surfaces of the ink chamber walls. As a result, the conductive resin (10) filling inside the ink chamber (26) constitutes an electrode for an external connection. This reduces the electrostatic capacity attributed to the piezoelectric substrate. Moreover, it is possible to increase the ink jet head drive frequency. This reduces power consumption and provides an ink jet head having a high productivity and reliability and capable of high-speed printing as well as its manufacturing method. |
