Photonics

Photonics

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built voltage

    • tade
      Subscriber

      hello.

      why in this example, the voltage in the boundary condition is more than the applied one?

      https://optics.ansys.com/hc/en-us/articles/360042760633-Metal-oxide-semiconductor-MOS-capacitor

    • Amrita Pati
      Ansys Employee

      Hi Tade,

      I am not sure about this. It might have been just an oversight. I will talk to the development team and get back to you. Thank you.

      Regards,
      Amrita

    • tade
      Subscriber

      thanks a million. The answer is so necessary for me. Please answer me as soon as possible.

    • Amrita Pati
      Ansys Employee

      Hi Tade,

      I reached out to the Development team but I haven't heard back yet. I will get back to you as soon as I can.

      Regards,
      Amrita

    • tade
      Subscriber

      Dear Amrita, thank you for your response. The answer you will provide is crucial to my thesis. I had to pause my simulations due to unexpected results on the monitor. I am eagerly awaiting your reply.

    • Amrita Pati
      Ansys Employee

      Hi Tade,

      I understand. Sorry that it is taking a while. I will remind the team again.

      Regards,
      Amrita

    • Amrita Pati
      Ansys Employee

      Hi Tade,

      I apologize that it took me so long to get back to you. But I heard back from the R&D team recently. The response is as follows: "The base grid is defined with dV = 0.25 and then we just add one more voltage point next to every base grid point at the distance of 0.025. So essentially the voltage grid dV = 0.025 and 0.225 alternately. The reason to have small dV = 0.025 next to every point is that we need to calculate a numerical derivative C = dQ/dV on line 41. The numerical derivative is more accurate if dV is smaller.".

      Regards,
      Amrita

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