Ink jet print head and ink jet printing apparatus using the same

摘要

The ink jet print head provides a good electrical connection with the silicon substrate (100). In silicon substrate (100) of the ink jet print head (5025, 5027) the electrodes for electrical connection have a layer construction such that, under a part of the metal bumps (210), wires drawn from the cavitation resistant film (230) and a metal layer (255) not corroded by the ink are formed overlapping each other. The ink jet printing apparatus uses the ink jet print head (5025, 5027) constructed as described above. <IMAGE>