Agilent Technologies EasyEXPERT - Page 599

27 PowerMOSFET, PMIC, SiC
27.7 Id-Vgs: Id-Vgs characteristics, SMU Pulse (A.05.00)
[Supported Analyzer]
B1505A
[Description]
Measures Drain current vs Gate voltage characteristics. SMU pulse is used for the Drain-Source voltage output.
[Device Under Test]
Power MOSFET, 3 terminals
[Device Parameters]
Polarity: Nch (SMUs force the specified value) or Pch (SMUs force the negative specified value).
Temp: Temperature
YAxisgfsMin: Y axis (gfs) minimum value
YAxisgfsMax: Y axis (gfs) maximum value
[Test Parameters]
Memo: Memorandum
Gate: SMU connected to Gate terminal, primary sweep voltage output
VgStart: Sweep start voltage for Gate terminal
VgStop: Sweep stop voltage for Gate terminal
VgStep: Sweep step voltage for Gate terminal
PulsePeriodMode: Pluse period mode, AUTO or MANUAL
ManualPulsePeriod: Pulse period, effective if PulsePeriodMode=MANUAL
PulseWidth: Pulse width
Drain: SMU connected to Drain terminal, secondary sweep voltage output
VdStart: Sweep start voltage for Drain terminal
VdStop: Sweep stop voltage for Drain terminal
VdPoint: Number of drain voltage sweep steps
Source: GNDU connected to Source terminal
IdLimit: Drain current compliance
[Extended Test Parameters]
PulseBase: Pulse base voltage
PulseAvgCnt: Pulse averaging count
IgLimit: Gate current compliance
HoldTime: Hold time
MeasurementTime: Actural measurement time for a pulse period
[Measurement Parameters]
Drain current Idrain
Gate current Igate
[User Function]
gfs: Forward transconductance gfs=diff(Idrain,Vgate)
Ta: Temperature Ta=Temp
[Analysis Function]
gfsMax=max(gfs)
Vth=@L1X (X intercept of Line1)
[Auto Analysis]
Line1: Tangent for Y2 data at the point of gfs=gfsMax
Agilent EasyEXPERT Application Library Reference, Edition 8
27-15