High-Voltage Pulse Trimming of Thick-Film Resistors - Some Modelling Aspects

Novel applications of thick-film technology require precision trimming of thick-film resistors that are being used as both resistive and sensing elements. High-voltage pulse trimming provides high precision trimming leaving the resistor body undamaged and resistor geometry intact. This paper introduces an adapted statistical bimodal bond conductance approach to analysis of high-voltage pulse trimmed thick-film resistors. Application of high-voltage pulses causes transitions from contact conductance to tunneling conductance and vice versa in resistors whose disordered structure is being presented using 3D planar random resistor network.