The HP (Agilent, Keysight) 4140B pA Meter / DC Voltage Source component measurement system consisting of  an extremely stable picoampere meter and two programmable DC voltage sources.  The HP 4140B is ideal for making DC characteristic measurements such as leakage current, current/voltage characteristics, and quasi – static C-V measurements.  

Features of :

●Semiconductor measurements for leakage current, current-voltage, and quasi-static C-V parameters

●Two programmable voltage sources for -100 V to +100 V with up to 10 mV resolution

●High resolution: 0.001 x 10-12 A

●GPIB