Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Heterojunction Tunneling

Please login with a confirmed email address before reporting spam

Hi all. I am trying to model a semiconductor heterojunction tunneling for 8 domains , and i got this error when trying to simulate the model.

"undefined value found in the equation residual vector.there are 2627 degree of freedom giving NaN/Inf in the vector for the variable comp1.Efn_. at coordinate .....".

Can anyone help me with this error. I don't understand and how to fix it.Thank you in advance.


0 Replies Last Post 5 mag 2020, 23:29 GMT-4
COMSOL Moderator

Hello Effah Jamil

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.