User`s guide

1-38 Agilent 4155C/4156C User’s Guide Vol.2, Edition 6
Sweep Measurements
Making a Measurement
Figure 1-7 User Function Definition Screen
Figure 1-7 defines the following two user functions:
SQID = √ Id
DSQID = ∂SQID / ∂Vg = ∂√ Id / ∂Vg
Where, Id is drain current and Vg is gate voltage.
B
CHANNELS: USER FUNCTION DEFINITION 01JAN29 10:53AM
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SQID SQRT(ID)
DSQID DIFF(SQID,VG)