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To change the vth measurement setup – Agilent Technologies Agilent E5250A User Manual

Page 269

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Agilent E5250A User’s Guide, Edition 11

9-13

Executing Sample Programs

Vth and Capacitance Measurement Program

To change the Vth measurement setup

You can EDIT the program to change the following parameters in the "Constant
Definition" block of the Meas_vth subprogram.

To change the E5250A input port/output port connections, change the Channel$
parameter. And if you want to change the E5250A connection functions (Channel
Configuration mode, etc.), modify the Set5250init subprogram.

To change the 4155/4156 measurement setup, change the Param_file$
parameter to the name of your desired setup file.

To change the name of parameter Vth entered from the 4155/4156, change VTH and
Vth to the desired name on the 3 lines shown below. Where VTH is the parameter
defined by the E5252.MES setup file.

Meas_vth subprogram, "Measurement" block:

OUTPUT @Hp415x;":TRAC? 'VTH'"

ENTER @Hp415x;Vth

Meas_vth subprogram, "Test measurement data" block:

IF VthVth_max THEN

Meas_vth subprogram, "Reset Instrument" block:

OUTPUT Out_str$ USING Img1;Test_num,Result$,Vth_min,V

th,Vth_max,Test_comm$

Parameter Description

Default

Test_comm$

Comment for the measurement.

"MOSFET Vth Measurement"

Param_file$

4155/4156 setup file to use.

"E5252.MES"

Vth_max

The maximum Vth limit in V.

2.0

Vth_min

The minimum Vth limit in V.

0.1

Channel$

E5250A channel_list to use.

"(@10101,10202,10303,10404)"