Messages

1

General Questions and Answers / Showing memory error just after the 2nd IV execution task for 2x2 multi channel

« on: February 9, 2026, 11:03 »

Good afternoon. Hope you are doing well. I am facing a memory error after the 2nd I–V execution out of 80 runs for a 2×2 multichannel FET device. Each run has 40 I–V points at constant VDS = 0.5 V. Cache memory is disabled, and the job is executed on the local disk (C/D), both having >300 GB free space.

MPI: Number of Threads =4 & Number of process =10. Just for your kind information/reference

Thank you.

2

General Questions and Answers / Why device density of states is not opening to visualize the curve ?

« on: December 19, 2025, 06:35 »

Dear experts,

Why device density of states is not opening to visualize the curve ? It is opening as editor where the data is written after execution.

3

General Questions and Answers / Showing Memory allocation error for one job task execution_Reg.

« on: December 17, 2025, 10:08 »

Dear sir,

Good afternoon, Hope you are doing well. it is showing --Showing Memory allocation error for one job task execution_Reg..

The device structure is like - 4 Cylindrical GAA FET (2X2) . 4 Devices are having  4 different common dielectric (30) & 4 different metal gate.

How to resolve the issues?

4

General Questions and Answers / Re: calculation of gate oxide capacitance

« on: October 8, 2025, 06:26 »

I suppose you are mainly looking at how the electron density changes with bias, so you can just subtract the zero-bias electron density and that's your bias-induced charge transfer.

Dear experts,

Good afternoon, how to compute cgg, cgd, cgs  of a fet using quantum atk?

5

General Questions and Answers / how to compute cgg, cgd, cgs of a fet using quantum atk?

« on: October 7, 2025, 11:47 »

Dear experts,

Good afternoon, how to compute cgg, cgd, cgs  of a fet using quantum atk?

6

General Questions and Answers / Whenever trying to open Current density .hdf5 file after execution isnot opening

« on: October 6, 2025, 05:24 »

Dear experts,

Good morning, Hope you are doing well. Whenever trying to open the Current density .hdf5 file after execution is not opening.. Opening editor instead. How to open the executed result file? Thank you.

7

General Questions and Answers / Re: How to get carrier density in a device?

« on: September 25, 2025, 08:32 »

Especially when processing an I-V curve calculation with bias.

Also, can we Do the analysis of electric field , Current density , EF, Mobility variations for FET Device ?

If then how, Like what will be the efficient / suitable calculator and analysis block

Thanks

8

General Questions and Answers / How to analyze of electric fireld , Current density , EF, Mobility for FET Dev

« on: September 22, 2025, 11:18 »

Dear experts,


 can we Do the analysis of electric fireld , Current density , EF, Mobility variations for FET Device ?

If then how, Like what will be the efficient / suitable calculator and analysis block

Thanks

9

General Questions and Answers / Re: How to do VIP3,IIIP3,IMD3 analysis of a FET?

« on: September 10, 2025, 08:47 »

Dear sir,

Good morning, Hope this msg finds you well. PFA the snap shot for linearity analysis. How to perform this using quantum atk
Thank you.

If I provide the .opju ( Origin file ) or CSV file of ID-VGS Data of each devices(5 devices) . Can I get those analysis or someone can guide me once.  Then I can do the rest. Thank you.

10

Plugin Development / Re: QATK 2024-09 IV Curve

« on: September 9, 2025, 13:05 »

Yes, use IVCharacteristics, it works fine without gate too.

Not sure about IVCurve, is your problem that you can't read and plot old files?

Facing the same problem. Kindly advise.

11

General Questions and Answers / How to do VIP3,IIIP3,IMD3 analysis of a FET?

« on: September 9, 2025, 06:55 »

Dear sir,

Good morning, Hope this msg finds you well. PFA the snap shot for linearity analysis. How to perform this using quantum atk
Thank you.

12

General Questions and Answers / HOW TO OBTAIN gm1, gm2 of a FET(For linearity analysis) from Quantum Atk IV ANZ

« on: September 8, 2025, 06:39 »

Dear Experts,


'Good morning , HOW TO OBTAIN  gm1, gm2 of a FET(For linearity analysis) from Quantum Atk IV ANALYZER?
Also, Maximum transconductance.....
N.B: Enclosing for reference.

Thank you.

Regards

13

General Questions and Answers / Re: Executed IV HDF5 File is not showing at "Data" Section even saved at the folder

« on: September 4, 2025, 06:20 »

Kindly advise

14

General Questions and Answers / Re: When GUI crashes it locks the hdf5 files

« on: September 2, 2025, 07:24 »

Ok, but it's more of a operating system thing, than anything we can control in our code

As I am not aware whether the issue I have faced is similar to this or not . But still I would like to request you to guide me regarding this. For my case- I have successfully executed the hdf5 file based on convergence IV simulation for 10hrs. But after that I can not visualize the HDF5 file from " Data" Section of the software.  I have also tried to close and reopen the software and also I have copied the file in to the output folder as well.  Please help me to retrieve the IV Data  atleast within excel file. Thank you.

15

General Questions and Answers / Re: Executed IV HDF5 File is not showing at "Data" Section even saved at the folder

« on: September 2, 2025, 06:56 »

I have attached the issue . Please help me to resolve. I can not visualize the hdf5 file