Topics

1

General Questions and Answers / How to shift the Ambipolar characteristics of a GAA CNFET for ID-VG ?

« on: January 2, 2025, 13:31 »

Dear experts,
Good evening, How to shift the Ambipolar characteristics of a GAA CNFET for ID-VG[Towards Negative x-axis]?
U or V shape ID -VG characteristics

Even with gradual doping of P-I-N Formation, it's coming
Source: P-type (1E+19/Cubic cm)
Channel: Intrinsic
Drain: N-type (5E+18/Cubic cm)

2

Scripts, Tutorials and Applications / Device geometry optimization_Cylindrical GAA_ CNTFET_10nm Channel Giving High SS

« on: December 13, 2024, 06:43 »

Dear All,

To ask :
Good morning. I have attached a one.py structure file of Cylindrical GAA CNT FET OF 10nm Channel length. The observation is that it provides high SS, 216mV/Decade. This may be due to the Short-channel Effect. Kindly advise if there is any provision to optimize the device geometry for better performance regarding electrical parameters of an FET such as SS, and Ioff...

Thank You.

3

Scripts, Tutorials and Applications / How to resolve the issue?

« on: December 5, 2024, 07:02 »

Dear all,
Good morning,


Traceback (most recent call last):
  File "C:\Program Files\QuantumATK\QuantumATK-V-2023.12\atkpython\Lib\site-packages\AddOns\DevicePackage\CreateDeviceFromBulkWidget.py", line 105, in accept
    self._stash.addItem(item, set_active=True)
  File "zipdir\NL\GUI\Tools\Builder\Stash\Stash.py", line 430, in addItem
  File "zipdir\NL\GUI\Tools\Builder\Stash\Stash.py", line 238, in setActive
  File "zipdir\NL\GUI\Tools\Builder\Stash\Stash.py", line 710, in saveItem
  File "zipdir\NL\GUI\Tools\Builder\Stash\Stash.py", line 796, in deleteObject
  File "zipdir\NL\IO\NLSaveUtilities.py", line 541, in nldelete
  File "zipdir\NL\IO\HDF5.py", line 299, in _delitem_
  File "h5py\_objects.pyx", line 54, in h5py._objects.with_phil.wrapper
  File "h5py\_objects.pyx", line 55, in h5py._objects.with_phil.wrapper
  File "build\atkpython\Lib\site-packages\h5py\hl\group.py", line 357, in __getitem_
  File "h5py\_objects.pyx", line 54, in h5py._objects.with_phil.wrapper
  File "h5py\_objects.pyx", line 55, in h5py._objects.with_phil.wrapper
  File "h5py\h5o.pyx", line 190, in h5py.h5o.open
KeyError: "Unable to open object (object '(8R,9' doesn't exist)"

Kindly advise. Thank You.

4

General Questions and Answers / How to Make Multiple Channel For a GAA CNT FET & increase Source & drain Height?

« on: November 14, 2024, 04:46 »

Dear All,


Good morning, Just to ask : How to Make Multiple Channel(At least 2)  For a GAA  CNT FET Using Quantum Atk in NEGF formation?.  With Same chirality say (10,0).Thank You.
How to increase Source & drain Height with the same chirality of CNT ?

Thank you.

5

Installation and License Questions / Is there any limitation for number of execution of Simulation?

« on: May 21, 2024, 11:05 »

Good afternoon,

Is there any limitation for number of  execution of Simulation? Some time its showing licensing error.
Thank You.

6

Scripts, Tutorials and Applications / spatial region extended into the centre region, not calculated during electrode

« on: May 17, 2024, 17:06 »

Good evening, Hope you are doing well. Just to ask :
How to give proper metallic contact to source & drain in quantum atk . It's showing "Spatial regions extending into the electrodes are ignored during the electrode calculation"
Just to ask
:how to avoid or solve  " spatial region extended into the centre region, not calculated during electrode calculation in quantum atk"

Thank you




How to put proper dielectric & metal exactly at the centre region of the device?

Kindly let me know. Thank you.

7

General Questions and Answers / Regarding one existed .py file from software tutorial itself. Opening at builder

« on: April 23, 2024, 11:52 »

Good evening,
Hope this text finds you well.
This text is mainly to clarifying one doubt. Regarding one existed .py file(https://docs.quantumatk.com/_downloads/c344073d8389b8850d8b352ffed2f855/cnt-gaa-pin.py) from software tutorial itself. Though, Opening at builder.


Is that possible to characterize the same device for the same ? 

Thank You.