Keithley 4200-SCS Semiconductor Characterization System

9 December 2024

The Keithley 4200-SCS Semiconductor Characterization System is used for measuring semiconductor structures and devices, including DC I-V, C-V, and pulse characterization.

I-V Source Measurement Unit (SMU):

  • Modules: ± 210 V / 100 mA or ± 210 V / 1 A
  • Measurement Resolution: 100 fA, with an optional PreAmp providing 10 mA measurement resolution
  • Frequency: Very low frequency capacitance from 10 mHz – 10 Hz

Measurements:

  • Four Quadrant Operation: 2-wire or 4-wire connections for accurate measurement

C-V Multi-Frequency Capacitance Unit (CVU):

  • AC Impedance Measurements: C-V, C-f, C-t
  • Frequency Range: 1 kHz – 10 MHz
  • DC Offset: ± 30 V (60 V differential) built-in DC bias
  • Voltage Range: ± 210 V (420 V differential)
  • Optional CVIV Multi-Switch: Allows easy switching between I-V and C-V measurements

Pulsed I-V Ultra-Fast Pulse Measurement Unit (PMU):

  • Channels: Two independent or synchronized channels
  • Sampling Rate: 200 MSa/s, with 5 ns sampling rate
  • Voltage/Current: ± 40 V (80 Vp-p), ± 800 mA
  • Features:
    • Transient waveform capture mode
    • Random waveform generator for multi-level pulse waveform with 10 ns programmable resolution

High Voltage Pulse Generator Unit (PGU):

  • Channels: Two high-speed pulse voltage sources
  • Voltage/Current: ± 40 V (80 Vp-p), ± 800 mA
  • Pulse Waveform Generator: Random waveform generator for multi-level pulse waveform with 10 ns programmable resolution
  • Segment ARB® Mode: For complex waveform generation

I-V / C-V Multi-Switch Module (CVIV):

  • Easy Switching: Seamlessly switch between I-V and C-V measurements without reconnecting or removing the probes
  • Voltage Routing: ± 210 V DC routing feature

Remote Pre-Amplifier / Switch Module (RPM):

  • Automatic Switching: Automatically switches between I-V, C-V, and ultra-fast pulsed I-V measurements
  • Extended Precision: Expands the existing precision of the 4225-PMU to tens of picoamps
  • Reduced Cable Capacitance Effects: Minimizes the impact of cable capacitance on measurements

This system offers a comprehensive solution for semiconductor electrical characterization, providing high-speed and high-precision measurement capabilities for a wide range of semiconductor devices and materials.