Keysight Technologies B1542A Pulsed IV Package, Руководство пользователя

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5-34 Keysight B1542A User’s Guide, Edition 10
PLSDIV Test Definitions
Parameters
Parameters
This section explains the definitions of the parameters used in the pulsed IV test
definitions.
Polarity
Polarity controls the source output polarity. Usually, a positive polarity is used for
the N channel devices and a negative polarity is used for the P channel devices.
Figure 5-6 shows the polarity of gate pulse voltage.
DeviceDelay
DeviceDelay defines the delay time set to the oscilloscope and used to compensate a
skew caused by the device under test. This is important to synchronize the gate pulse
and the drain pulse. Check the pulse waveform and read the delay time between the
gate pulse and the drain pulse.
Figure 5-6 Polarity
Figure 5-7 DeviceDelay
PulseBase
Vg
1 PulseBase
1 Vg
Polarity = Nch
Polarity = Pch
After adjustment Before adjustment
Drain monitor pulse
Device Delay
Gate monitor pulse
Drain monitor pulse
Gate monitor pulse