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.

Vanishing geometry in nano level

Please login with a confirmed email address before reporting spam

Hi

I'm trying to plant some nano-cylinders on a larger cylindrical base of [um] dimensions. When I plant 3 cylinders on top with 200[nm] radius, everything works just fine. But if I reduce their sizes to 50[nm], only one of the wires remain. If I add another cylinder of same dimensions, the whole structure just vanishes.

I've already played around with the relative tolerance values. Currently, it's 1e-9. But nothing seems to be working. I've narrowed down the problem to 'form union' section under geometry. But I cannot figure out a solution.

Any advice is appreciated.

0 Replies Last Post 19 feb 2013, 04:07 GMT-5
COMSOL Moderator

Hello Tridib Saha

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.