Hermes mercury probe station has a specialized sample stage for probing the thin film reactance (L, C, R) of a material without a top contact. Liquid mercury is applied via vacuum to the surface of the specimen and the back of the specimen is used as the other electrical contact. The mercury top contact has a minimum spot size of 775 microns with a mercury ring contact at 1 centimeter in diameter if surface measurements are desired. The Precision LCR Meter can also measure devices with leads by an external bias voltage fixture without exposing your sample to mercury contamination.


  • Nondestructive testing
  • GW Instek LCR-8110G Precision LCR Meter
    • Frequency range: 20 Hz < f < 10 MHz
  • Keithley 230 Programmable Voltage Source
    • DC bias: 100 V maximum, 100 mA maximum
  • MDC Mercury Probe
    • Sample size: Ø0.5 inch minimum, Ø6.0 inch maximum by 0.5 inch thick
  • External Bias Voltage Fixture
    • Sample size: 2 x 3 x 4 ¾ inches maximum

Example Data

Location: RFM 2226
Manager: Dr. Casey Smith
Backup: Jacob Armitage,
Model: 802-150 MDC Mercury Probe