Heater for inkjet printer head and method for production thereof
A technology of inkjet print head and heater, which is applied in printing and other directions, and can solve problems such as difficult to achieve life, long printing clarity, etc.
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[0021] figure 1 This figure is drawn to describe the cross-sectional structure of one point of heater board IC 20 , a heater device for an inkjet print head formed in one embodiment of the present invention. The heater board IC 20 is an IC (integrated circuit) used for a print head such as a thermal (heating) inkjet printer.
[0022] The heater board IC 20 has a base layer 22 disposed on a semiconductor substrate, and a wiring layer 26 disposed in contact therewith so as to partially cover the base layer 22 . The base layer 22 is made of an insulating material—silicon oxide (SiO 2 )constitute. The wiring material constituting the wiring layer 26 is not particularly limited, but in this embodiment, aluminum·copper (Al—Cn) is used as the wiring material.
[0023] A portion of the base layer 22 not covered by the wiring layer 26 is referred to as a "heater arrangement portion 22a". The heater layer 24 is arranged in contact with them, and covers the heater arrangement portio...
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