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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Error in CHARGE › Reply To: Error in CHARGE

November 16, 2023 at 8:45 am
alisa
Subscriber

Hi Amrita,

Thank you for your reply!

 

I have checked the points you suggested.

  1. There are no warnings shown
  2. My design has top triangular electrodes where each triangle has some separation (currently 3 um, but it showed the same error at 20 nm as well). Intentionally I created the gap between electrodes since I wanted to avoid the charge overlap between them in an actual device so in the simulation I want to see what the sufficient gap is. I attached the screenshot of my design here. Could this gap be the cause of error in 2D Z-normal simulation?

*On alternative triangles the electrical I set in BC is like +/-

3. As you mentioned about the mesh, here is how I set up the global mesh constraint now. the size of the triangle (from the tip to the base) is 20 um and the thickness is 0.6 um. I have played with the max and min a bit, but the error remains.

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