Agilent Technologies 4155C, User Manual

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6-30 Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 4
Programming Examples for VEE Users
Pulsed Spot Measurements
Pulsed Spot Measurements
To make pulsed spot measurements, use the following functions.
Table 6-14 Functions for Pulsed Spot Measurements
A program example is shown in Figure 6-26 on page 6-31. This program measures
MOSFET drain current. The measurement setup is shown in Figure 6-25.
Figure 6-25 Device Connection and Source Setup for Example Program
Description Function Parameters
Output Switch Setup hp4156b_setSwitch channel,state
Output Filter Setup hp4156b_setFilter channel,state (pulse channel must be set to OFF)
Integration Time Setup hp4156b_setInteg table,time,average
Forces dc bias hp4156b_force channel,mode,range,value,compliance,polarity
Forces pulse bias hp4156b_setPbias channel,mode,range,base,peak,width,period,
hold,compliance
Executes measurement hp4156b_measureP channel,mode,range,value,status
Disables output hp4156b_zeroOutput channel
A
Drain
Substrate
Gate
Source
channel: SMU2
mode: V pulse
range: 20V
base: 0V
peak: Vd
width: 10msec
period: 20msec
hold: 0sec
comp: 0.1A
channel: SMU4
mode: V output
value: Vsub
range: 2V
comp: 0.1A
polarity: AUTO
channel: SMU3
mode: V output
value: Vg
range: 20V
comp: 10mA
polarity: AUTO
channel: SMU1
mode: V output
value: Vs
range: 2V
comp: 0.1A
polarity: AUTO
channel: SMU2
mode: I measure
value: Id
range: 0.1A
status: status