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How to set the baseline voltage of a SMU after a pulsed sweep using IC-CAP

Question asked by IronLeaves on Sep 6, 2016
Latest reply on Dec 9, 2016 by Else

Hello Community,

 

Does anyone know how to set the baseline voltage of a B2912 device before / after a pulsed sweep?

So what do I mean... I'm using IC-Cap to model some RF transistors after a pulsed IV-curve measurement. The pulsing is necessary to get the proper IV-curves which may be distorted by self heating and charge accumulation. However, since most of the transistors are normally on, the control of the output voltage of a SMU is essential to prevent damage to the device. I can do the pulsed sweep using the IC-CAP software but at the beginning and the end, the output voltage returns to zero which means maximum current through the RF-semiconductor. I want to set the voltage before and after the pulsed sweep to lets say -1V which can be easily done by operating the B2912 device manually. But IC-CAP overwrites the initial source voltages of the SMU...

 

How can I solve this?

Thanks in advance,

IronLeaves

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