Evaluation of Printed Heating Element for Micro-System Applications

The heating element with different configurations has been designed and fabricated by the screen printing approach using the conductive silver ink XZ250 with resistivity of 30 muOmegaldrcm. Thermal and electrical performances of screen printed heating element were evaluated at different electrical input power and certain ambient temperature. The printed heater can heat up temperature 85degC at input power 2.3 W for the configuration of substrate dimension 45 mm x30 mm x0.775 mm. This technique can be applied in micro PCR, micro chemical reactor and microfluidic devices.