Specific heater circuit track pattern coated on a thin heater plate for high temperature uniformity
Abstract:
A heater circuit track pattern designed to be coated on a heater plate in order to achieve high uniform heat distribution and fast heating up, low power consumption and prevent current crowding with high fill factor. The heater plate includes a substrate layer which is an electrically insulative, highly thermally conductive, low heat capacity substrate where the heater circuit track pattern has a conductive layer and a resistive layer. The conductive layer has conductive parts such that power pads, main power lines, electrical transfer pads, sub-conductor lines are formed by a highly conductive material to distribute power equally to the resistive layer. The resistive layer has resistive portions including resistive parts formed by a resistive ink to heat up the heater plate.
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