HP 4156A

[pandey_88]

I am trying to do the MOSFET characterization with HP 4156A using LabVIEW. The program will be to sweep the gate voltage and drain-source voltage to measure drain-source current for each Vgs. Can you please help me with some VI to start with. I am totally new to LabVIEW.

If someone has 4156A Vi,  it will be great.

Thank you

[oscarfonseca]

Hi pandey_88,

I recommend you check out the next resources to start developing in LabVIEW: 

• http://learnni.com
• Introduction to LabVIEW
• Instrument Control Fundamentals: Main Page

You can find the driver for the HP 4156A here: Agilent Technologies / Keysight Technologies 4156A This driver will have VIs you can use with your instrument, and perhaps an example program for reference. I hope this works for you!

Regards,

[cstorey]

oscarfonseca 's advice is good.  Start there and look at the examples that come with the driver.

That code should give you a good start.  I have lots of experience with the Hp4155s which are similar to the Hp4156. A few tips..

- You will need to pay attention to which SMUs are installed in your Hp4156, know the current voltage limits of each.

- The driver doesn't catch all errors 100% of the time, so when  your code doesn't work you will need to read the screen and track the error message back to your code.  

- SMU names, constants, etc.. in your code need to use the same conventions as when you use the front paenl.  (8 chars max, starts with a letter, etc..)

Good luck.  If you have problems or questions post your code here and you'll find help.

Craig

have more questions post your code here.   But show your code so we can help.