High Performance Current-Voltage Characterization System for High Resistance Materials
Muhammad Miftahul Munir, Yundi Supriadani, Maman Budiman, Khairurrijal Khairurrijal · Advanced materials research · 2014
The resistivity measurement finds many applications in semiconductors and insulating materials characterization. Conventional digital multimeter can provide resistance measurement up to about 10-200MΩ. However, in some cases, resistances in gigaohms (GΩs) and higher ranges need to be measured accurately. To measure the resistance of high resistivity materials, a programmable voltage source (-100V to +100V) combined with an electrometer system (100pA 10mA) have been built. The electrometer system and programmable voltage source have been calibrated with a calibrator (Fluke 5100B series) and digital multimeter (Fluke 8808A). Materials resistance up to 10 GΩ can be obtained by measuring the current-voltage (I-V) characteristics. It is found that the I-V curve of the 10 GΩ resistor fits very well the linear function with a high linear regression coefficient R2 of 0.999.