| 摘要 |
A multiplex drop ejection construction for a drop-on-demand, ink jet printer. The construction includes a support substrate; a first circuit portion having branches that include a resistive heater element and a diode device formed in spaced relation on the substrate. A dielectric passivation layer overlies the first circuit portion except at the discrete terminal regions of the first circuit portion branches. A second circuit portion comprising a plurality of multiplex electrode lines overlies the passivation layer and includes connection sections extending through the passivation layer into contact with terminal regions of the first circuit. A second passivation layer overlies the second circuit portion, but not the resistive heater elements.
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