Optimization of process parameters for the production of Ni–Mn–Co–Fe based NTC chip thermistors through tape casting route

Ni-Mn-Co-Fe-O based ceramic compositions were prepared and their NTC thermistor characteristics were evaluated. The tape casting slurry composition was optimized to get defect free ceramic tapes. Chip thermistors were prepared from these NTC tapes by optimizing the process parameters. The prepared chip thermistors were tested for their thermal and electrical reliability and found to have excellent reliability. Tape casting can be employed as an effective and ideal method for the mass production of Ni-Mn-Co-Fe based miniaturized NTC chip thermistors. (C) 2011 Elsevier B.V. All rights reserved.