| 摘要 |
<p>An ink jet printhead is fabricated with a resistive temperature sensor (50) formed adjacent to the heater resistors (44) and, in a preferred embodiment, of the same material. Temperature sensing variations between a plurality of printheads used in the same printer is achieved by trimming the thermistors to the desired resistance value while holding each printhead at its nominal set temperature. In one embodiment, the heater resistor and thermistor are formed within the same polysilicon layer, and the resistor trimmed therein. In a second embodiment, a thick or thin film resistor (58) is formed or bonded in series with the polysilicon thermistor, with the trimming being effected of the thick or thin film resistor. <IMAGE></p> |
