Agilent Technologies Agilent E5250A manual Adding the Bias Source Control Routine, Subend

Executing Sample Programs

HCI Measurement Program

Adding the Bias Source Control Routine

This sample program requires bias sources to apply stress to DUT. So, you must modify the following bias source control subprograms to match your bias sources or create new subprograms. The following subprogram is for bias sources that support SCPI commands:

1.Get the HCI test program (SP_MUX_M) from the E5250A Program Disk by using the computer:

GET "SP_MUX_M"

2.Delete the exclamation marks (!) from beginning of the following two program lines. You can easily find these lines by using FIND statement.

!CALL Bias_source_on

::

!CALL Bias_source_off

3.Delete the exclamation mark (!) from the beginning of the following lines in the "Bias_source_on" and "Bias_source_off" subprograms.

Then modify the "OUTPUT" statements to match your Bias Sources. The "SOUR XXX" SCPI command is used to control the output voltage of the Bias Sources.

!Bias_source_on:SUB Bias_source_on

!!===========================================================

!! Bias Source On

!!-----------------------------------------------------------

!COM /Meas_info5/ REAL Vdstr,Vgstr,Vdd,Vbb,Gate_length,Gate_w idth

!!-----------------------------------------------------------

!OUTPUT 701;"SOUR "&VAL$(Vgstr) ! Set Gate Stress Voltage

!OUTPUT 702;"SOUR "&VAL$(Vdstr) ! Set Drain Stress Voltage

!OUTPUT 703;"SOUR 0.0" ! Set Substrate Stress Voltage

!SUBEND

!!=========================================================== !Bias_source_off:SUB Bias_source_off

!!===========================================================

!! Bias Source Off

!!-----------------------------------------------------------

!COM /Meas_info5/ REAL Vdstr,Vgstr,Vdd,Vbb,Gate_length,Gate_w idth

!!-----------------------------------------------------------

!OUTPUT 701;"SOUR 0.0" ! Set Gate Voltage to 0.0V

!OUTPUT 702;"SOUR 0.0" ! Set Drain Voltage to 0.0V

!OUTPUT 703;"SOUR 0.0" ! Set Substrate Voltage to 0.0V

!SUBEND

4.Save modified file to an empty formatted diskette as in following example. This diskette is used for executing program. And the data measured and analyzed will be saved to this diskette automatically during program execution.

RE-STORE "SP_MUX"

Agilent E5250A User’s Guide, Edition 9 9-23