Improved Etching Performance Using PTC Heater: A Comparative Analysis with Traditional Heating System and Temperature Effect on Machined Geometries

Positive Temperature Coefficient (PTC) heaters offer precise temperature control due to their material property, which shows high resistance to temperature. The proposed design of the etching system based on a PTC heater is compared with an ordinary resistor-based system in terms of performance. The analysis includes power consumption, temperature deviation, geometrical deviation, and machining cost. The comparative result shows that the PTC heater-based system maintains temperature with a deviation of ±0.5 °C, compared to ±1.5 °C for the conventional resistor-based system. The total power consumption was reduced in the PTC heater-based system to 0.44KWh from 1 kWh. The overall analysis shows a reduction in power consumption, which ultimately results in a cost reduction and improved product quality. This PTC heater-based system approach shows an alternative to the conventional ordinary heater-based etching system.