Probe Station & Curve Tracer

Probe Station & Curve Tracer Tool Type Inspection, Test and Characterization Location Bay 4 Supervisor Demis D. John Supervisor Phone (805) 893-5934 Supervisor E-Mail demis@ucsb.edu Description Probe Station Manufacturer Signa-Tone

About

The probe station in the cleanroom is set up for up to four-point probing of two terminal and three terminal devices. The probe station is a Signatone station with a 2” diameter vacuum chuck. Four probes are provided. The measurements can be taken with various electronic test equipment detailed below, including HP multimeters, a Tektronix Curve-Tracer and a Keithley Source-Meter unit (SMU).

The Curve Tracer & Keithley SMU can be controlled by a computer to get portable data. FETs, HBTs, diodes, and contact resistance measurements are typically done on this system. The 370A curve tracer is capable of pulsed and DC operation.

The system is commonly used for characterizing contacts metals and anneals and contact resistances, diode I-V curves, in addition to other electrical measurements to determine optimal fabrication conditions.

Tektronix 370A Curve Tracer

Keithley 2400 SMU

HP 34401A multimeter

HP 3466A DMM

BK Precision 1672 DC Supply (Three Output)

Equipment Specifications

• 4 probe station, reconfigurable electrical connections
  • Probe needles available, users may bring their own and install on the manipulators
• 2-inch conductive stage with vacuum
• Binocular microscope, low-mag (variable), long working distance.

Installed Equipment

• Keithley 2400 Source-Meter unit
  • Current/Voltage/Resistance readbacks, along with 4-point-probe measurements.
  • Up to 200V, 1.0A
  • Computer-Controlled Sweeping and Plotting available
• HP 3466A Digital Multimeter
• HP 34401A Multimeter with 4-point resistivity measurement
• Tektronix 370A computer controlled curve tracer
  • Pulsed and DC characterization of 2 and 3 terminal devices
  • Computer-Controlled Sweeping and Plotting available
• BK Precision 1672 Triple-Output DC Power Supply
• Windows PC with:
  • GPIB Connections to the above electrical testing equipment for automated measurements.
  • Labview
    • I-V Curve plotting program available (read-only) for Keithley SMU
    • Automated program for Tektronix Curve-Tracer
  • Python(x,y)
    • I-V Curve Plotting script with Keithley 2400
  • Matlab
    • I-V Curve Plotting script with Keithley 2400
  • Nanofiles Sync for getting your measured data from the computer.

Operation Procedures & Manuals

Generally you should learn how to use a probe station in your lab first, but if you don't have one you can contact Tony or Demis for a quick run-down.

• I-V Curves with Keithley 2400 and Python Script

Equipment Manuals

Please search the internet for manufacturer manuals and quick-start guides. Some links are provided here, but these links may break over time:

• Keithley 2400 - Quick Start Guide
• Keithley 2400 - User Manual