| 摘要 |
<p>An ink jet head includes: (a) an ink passage unit having pressure chambers and wall portions defining each pressure chamber; (b) an actuator unit having a piezoelectric sheet, surface electrode and land; (c) printed circuit board on which a terminal connected to the land and a predetermined wiring pattern are provided; (d) metallic bond for connecting the land to the terminal; and (e) protrusion disposed on the connecting portion. An ink jet head includes: (a) an ink passage unit having pressure chambers and wall portions defining each pressure chamber; (b) actuator unit having a piezoelectric sheet disposed on the ink passage unit; (c) a surface electrode (35) on the piezoelectric sheet (41) with a main electrode portion opposed to a pressure chamber and a connecting portion opposed to a wall portion, and a land (36) on the piezoelectric sheet in a region opposed to the wall portion; (d) a printed circuit board (50) on which a terminal (54) connected to the land and a predetermined wiring pattern are provided; (e) metallic bond for connecting the land to the terminal; and (f) protrusion (162) disposed on the connecting portion. The land is connected to the surface electrode. The metallic bond is disposed between the land and a region extending over the land and the terminal along the peripheries of the land and the terminal. An independent claim is also included for manufacturing an inkjet head by: (a) forming protrusion on the connecting portion; (b) disposing metallic bond between the terminal and the land; and (c) pressing the land and the terminal so that they are brought near each other for connecting the land to the terminal to each other with metallic bond being disposed in the region between the land and the terminal and a region extending over the land and the terminal along the peripheries of the land and the terminal.</p> |
