Inkjet printhead and method of manufacturing the same

An inkjet printhead, comprising:

• a substrate having an ink chamber to contain ink;
• a heater to heat the ink contained in the ink chamber;
• one or more passivation layers adjacent to the heater to protect the heater;
• and
• a heat transfer layer to contact a portion of the one or more passivation layers and a surface of the substrate to dissipate heat generated by the heater from the one or more passivation layers to the substrate.

An inkjet printhead, comprising:

• a substrate having an ink chamber to store ink;
• a heater to heat the ink in the ink chamber;
• a nozzle layer having nozzles to eject droplets of the ink from the ink chamber due to heat generated by the heater;
• one or more passivation layers to separate the heater from the substrate and the nozzle layer, and formed with a thermal plug to expose a surface of the substrate therethrough;
• and
• a heat transfer layer formed between the one or more passivation layers and the nozzle layer and in the thermal plug to prevent the heat generated by the heater from accumulating in the nozzle layer by dissipating the heat to the surface of the substrate.