Home Iwatsu | Curve Tracers CS-8000 Curve Tracer

The IWATSU CS-8000 Series Semiconductor Curve Tracer is an advanced power semiconductor characterization platform designed for high-voltage, high-current and ultra-low-current measurements. Depending on the selected mainframe and optional high-current unit, the series supports up to 5 kV peak voltage and up to 2,000 A peak pulse current, along with a minimum current measurement resolution of 250 fA. It is suitable for evaluating modern power semiconductor devices including SiC, GaN, MOSFETs, IGBTs and diodes, with capabilities for static characteristics, leakage current, gate control, hysteresis evaluation and on-wafer measurements..

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  • Special Features
  • Specification

The CS-8000 Series is designed for power electronics research, semiconductor development and device characterization where engineers need flexible voltage and current capabilities within a configurable test system.

The series consists of three mainframe configurations. The CS-8020 provides medium-voltage capability up to 200 V at 1 A or 100 V at 2 A. The CS-8200 adds a high-voltage unit supporting up to 2 kV at 20 mA, while the CS-8500 extends the high-voltage capability to 5 kV at 8 mA. Both the CS-8200 and CS-8500 support DC and pulse operation through their HV units.

All mainframes incorporate a medium-voltage unit and gate unit. The MV section supports voltage measurement ranges from 200 mV to 200 V, current ranges from 5 nA to 2 A, and DC, pulse, sine, half-wave and full-wave operation. The gate unit provides up to 40 V / 1 A, supports DC, pulse and 50 Hz sine waveforms, and enables programmable gate signal sequences for semiconductor characterization.

For high-current device testing, optional CS-205, CS-210 and CS-220 HC units extend peak pulse current capability to 500 A, 1,000 A and 2,000 A respectively, with a maximum HC voltage of 50 V. Pulse widths are configurable according to the selected unit and range, supporting testing of high-power devices while reducing thermal stress associated with continuous high-current operation.

The CS-8000 Series uses triaxial measurement connections and an optimized measurement architecture to reduce leakage and noise, enabling a minimum measured-current resolution of 250 fA. This makes the platform suitable not only for high-power characterization but also for very small leakage-current measurements.

A 12.1-inch touch display provides X-Y characteristic curves, time-domain Y-T waveform monitoring and detailed measurement data. Engineers can observe pulse width, measurement points and abnormal waveforms such as oscillation while testing. Measurement data, waveform information and setup conditions can also be saved to USB storage.

For wide-bandgap semiconductor evaluation, the CS-8000 Series provides a double-sweep function that simultaneously displays upward and downward sweeps for observing hysteresis in SiC and GaN devices. Programmable gate patterns and preliminary gate signals allow devices to be evaluated under multiple gate-bias conditions.

The system also supports on-wafer testing, temperature-characteristic measurement configurations, remote control through LAN, and fixture interlock functions for safer high-voltage and high-current measurements.

  • Up to 5 kV peak high-voltage capability with the CS-8500 mainframe.
  • Up to 2,000 A peak pulse current using the CS-220 HC unit.
  • 250 fA minimum current measurement resolution for ultra-low-current and leakage measurements.
  • Supports SiC, GaN, MOSFET, IGBT and diode characterization.
  • Three mainframe options: CS-8020, CS-8200 and CS-8500.
  • Optional high-current units: CS-205, CS-210 and CS-220.
  • 12.1-inch TFT touch-screen interface for intuitive measurement setup and analysis.
  • X-Y characteristic curve and Y-T time-domain waveform display.
  • Supports DC, pulse, sine, half-wave and full-wave measurement modes depending on the selected unit.
  • Flexible programmable gate signal output for advanced semiconductor testing.
  • Gate pre-signal range of -40 V to +40 V.
  • Gate hold-time setting from 0.000 s to 5.000 s.
  • Double-sweep hysteresis measurement for SiC and GaN devices.
  • Triaxial connections help reduce leakage current and measurement noise.
  • Supports constant-voltage and constant-current drive measurement.
  • Designed for on-wafer semiconductor characterization using compatible wafer probers.
  • Supports optional temperature-characteristic measurements using compatible hotplates or ThermoStream equipment.
  • CS-322 HV/HC Test Fixture provides automatic internal switching according to the measurement configuration.
  • Fixture and external interlock protection help improve operator safety.
  • Configurable voltage, current and power limits help protect the device under test.
  • Hardware overcurrent protection provides an additional level of device protection.
  • USB support for saving measurement data, waveforms and setup conditions.
  • LAN-based remote control enables integration with automated semiconductor test systems.
Specification Details
Product Type Semiconductor Curve Tracer
Series CS-8000 Series
Mainframe Models CS-8020, CS-8200, CS-8500
Maximum System HV Capability Up to 5 kV
Maximum System HC Capability Up to 2,000 A pulse
Minimum Current Resolution 250 fA
Display 12.1-inch TFT touch screen
Supported Applications SiC, GaN, MOSFET, IGBT, diode and power semiconductor characterization

 

Mainframe / HV Specifications

Model Maximum HV Capability HV Measurement Range HV Current Range Waveform
CS-8020 No dedicated HV unit
CS-8200 2 kV / 20 mA 50 V to 2 kV 50 μA to 20 mA DC, Pulse
CS-8500 5 kV / 8 mA 50 V to 5 kV 50 μA to 20 mA DC, Pulse

 

Medium-Voltage Unit

Specification Value
Maximum Peak Output 200 V / 1 A or 100 V / 2 A
Measured Voltage Range 200 mV to 200 V
Measured Current Range 5 nA to 2 A
Minimum Current Resolution 250 fA
Waveforms DC, Pulse, Sine, Half-Wave, Full-Wave

 

Gate Unit

Specification Value
Maximum Peak Output 40 V / 1 A
Measured Voltage Range 1 V to 50 V
Measured Current Range 5 nA to 1 A
Minimum Current Resolution 250 fA
Waveforms DC, Pulse, Sine 50 Hz
Pre-Signal Gate Voltage -40 V to +40 V
Gate Hold-Time Range 0.000 s to 5.000 s

 

Optional High-Current Units

HC Unit Maximum Peak Current Maximum Voltage Pulse Operation
CS-205 500 A 50 V 10 μs to 1 ms
CS-210 1,000 A 50 V Pulse
CS-220 2,000 A 50 V Pulse
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