Transistor measurement

[12130030@zju.edu.cn]

Hello,

I have a problem with the dual-channel measurement, as a transistor has three terminals: gate, source and drain, while two channels of the source meter are needed to work synchronously. I find some examples but there is no one mentioned about this. So how can I do to achieve this?

Thanks!

[Basjong53]

Which device are you using to measure your transistor? What do you want to measure? A standard voltage current characteristic doensn't require any synchronization. Just set a voltage on the gate, sweep the channel and repeat at different gate voltages.

[12130030@zju.edu.cn]

Thanks for your reply!

Sorry that I don't explain what I did before.

I use LABVIEW to control the sourcemeter Keithley 2636B measuring a transistor, and when one channel sweep the Gate voltage, I also need another channel output a bias darin voltage and measure corresponding drain current. Unfortunately, the data of drain current needs to be collected as every gate voltage changes. So I think these two channel need to work synchronously, 

If I have some mistakes about the work principle, please point out and I'll be very very grateful for your help!

[santo_13]

Keithley's KickStart software may be a good off the shelf solution for your need - https://www.tek.com/en/products/keithley/keithley-control-software-bench-instruments/kickstart

In general, you need to read the user manual to understand how to set up triggering across SMUs along with sweeping and measuring.

[12130030@zju.edu.cn]

Thank you for your reply!

My group used the Kickstart software for a long time, but now we need a more free and more precise method to measure the transistor.:) And I also hope find some examples of measuring transistors that I can understand the whole process deeply.

[Basjong53]

The Keithley 2636 has 2 channels and you can use dataflow to synchronize for basic measurements. If you need super precise timing, you should send an array to the Keithley and measure using triggers or fixed intervals.

For basic measurements, this should work well (you may have to set some additional configuration parameters): 

You can find the drivers here: https://www.tek.com/en/support/software/driver/keithley-series-2600-2600a-2600b-native-labview-2009-...

[12130030@zju.edu.cn]

Many many thanks!

I 'll read it to find the logic.

Best regard!