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Agilent Technologies EasyEXPERT

Agilent Technologies EasyEXPERT
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22 IGBT
22.4 Cge-Vge: IGBT Cge-Vg characteristics (A.05.50)
[Supported Analyzer]
B1505A
[Description]
Measures Gate-Emitter capacitance (Cge), and plots Cge-Vg characteristics.
For a more accurate measurement, perform correction data measurement at the measurement frequency before
starting the capacitance measurement.
If the measurement frequency is not included in the list of default frequencies below, click the Advanced
Options... button and set the measurement frequency on the Frequency area of the Advanced Options for CMU
Calibration window.
Default frequencies:
1 k, 2 k, 5 k, 10 k, 20 k, 50 k, 100 k, 200 k, 500 k, 1 M, 1.2 M, 1.5 M, 2 M, 2.5 M, 2.7 M, 3 M, 3.2 M, 3.5 M,
3.7 M, 4 M, 4.2 M, 4.5 M, 5 MHz
[Device Under Test]
IGBT, 3 terminals
[Device Parameters]
Polarity: Nch (SMU forces the specified value) or Pch (SMU forces the negative specified value).
Temp: Temperature
YAxisCgeMin: Y axis (Cge) minimum value
YAxisCgeMax: Y axis (Cge) maximum value
[Test Parameters]
Memo: Memorandum
IntegTime: Integration time
Frequency: Measurement frequency
OscLevel: Measurement signal level
Gate: CMU used for the capacitance measurement
VgStart: DC bias sweep start voltage
VgStop: DC bias sweep stop voltage
VgStep: DC bias sweep step voltage
Vg@Cge0: Gate voltage for Cge0
[Extended Test Parameters]
HoldTime: Hold time
DelayTime: Delay time
[Measurement Parameters]
Gate-Emitter capacitance Cge
Gate-Emitter conductance Gge
[User Function]
Ta: Temperature Ta=Temp
[Analysis Function]
Cge0=@MY (Y coordinate of Marker)
[Auto Analysis]
Marker: Vgate=Vg@Cge0
Agilent EasyEXPERT Application Library Reference, Edition 8
22-9

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