Agilent Technologies Agilent E5250A Guía de usuario descargar pdf (Pagina 128)

3-34 Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 1

Programming Examples Using Agilent VEE

Pulsed Sweep Measurements

To make pulsed sweep measurements, use the following functions.

Table 3-18 Functions for Pulsed Sweep Measurements

A program example is shown in Figure 3-30 on page 3-35. This program measures

MOSFET Id-Vd characteristics. The measurement setup is shown in Figure 3-29.

Figure 3-29 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

Sweep Source Setup hp4156b_setPiv channel,mode,range,base,start,stop,point,hold,

width,period,compliance

Executes measurement hp4156b_sweepPiv channel,mode,range,point,source[ ],value[ ],

status[ ]

Disables output hp4156b_zeroOutput channel

Drain

Substrate

Gate

Source

channel: SMU2

mode: V pulse

range: 20V

base: 0V

start: VdStart

stop: VdStop

point: MeasPoint

hold: 0sec

width: 10msec

period: 20msec

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

range: 0.1A

point: MeasPoint

source: Vd

value: Id

status: status

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