Has anyone done their own measurements on the resistance and know whether the values in this plot ar...

Luke Harold Miles

11/03/2023, 8:02 PM

Has anyone done their own measurements on the resistance and know whether the values in this plot are accurate/typical?

Luke Harold Miles

11/03/2023, 8:53 PM

Well there's this https://www.weebit-nano.com/wp-content/uploads/2021/05/Weebit-nano_Silvaco_ReRAM-TCAD_Oxide-Based-Model_IMW_OxRAM_2021_published-on-IEEE_V3-1.pdf

Ruibin Mao

11/06/2023, 1:34 AM

I haven’t measured before, but according to my experience, there will be device-to-device variations for sure and it’s not small actually.

Matthew Guthaus

11/06/2023, 2:03 AM

We are still waiting for our test devices. I forget which MPW they were on. 5?

Akash Levy

12/02/2023, 1:23 AM

Yes there are large device-to-device variations on the Skywater RRAM

Akash Levy

12/02/2023, 1:31 AM

I was one of the authors on the paper you posted the plot from and have a lot of characterization data on the variability. Let me know if you need any of it

Ruibin Mao

12/02/2023, 1:36 AM

Thank you @Akash Levy for pointing this out! Could you please share some data about the device-to-device variations, program cycle-to-cycle variations, and also the multi-state performance of the device(how many analog states it can achieve)? Thanks!

Akash Levy

12/02/2023, 1:42 AM

Sure. Let me see what I can dig up

Akash Levy

12/02/2023, 1:44 AM

It can achieve roughly 8 states with < 1% cell error rate, that was reported in this paper: https://ieeexplore.ieee.org/document/9497347

Akash Levy

12/02/2023, 1:44 AM

I have all the data for that paper here: https://github.com/akashlevy/RRAM-RADAR-Tuning

Akash Levy

12/02/2023, 1:48 AM

This repository has some more data: https://github.com/akashlevy/NI-RRAM-Test-Setup/

🙌 1

Akash Levy

12/02/2023, 1:49 AM

I’d look at

resist_sweep.csv

, which contains a sweep of the word line voltage, bit line voltage, pulse width, and the pre/post-read resistance across a bunch of cells

Akash Levy

12/02/2023, 1:50 AM

hope that’s a bit helpful. lmk if you have questions

Ruibin Mao

12/02/2023, 2:56 AM

Thank you so much @Akash Levy I will take a look at it first

Ruibin Mao

12/02/2023, 3:04 AM

Sorry, I think this link: https://github.com/akashlevy/NI-RRAM-Test-Setup/ is not public available? @Akash Levy

Akash Levy

12/02/2023, 7:20 AM

Apologies, I have made it public

Ruibin Mao

12/02/2023, 7:28 AM

Thanks! It's a great help

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