Problems in Heat simulation

- August 1, 2022 at 1:58 pm
  
  jb2nn
  Subscriber
  
  I tried to simulate the thermal transportation in a photodiode. And AlN or diamond is attached to Au tried to get better thermal transport. I only set T=300K as the boundary condition at the bottom of simulation region. But after the simulation, I found T profile shows no difference w AlN and wo AlN. Is there anythinig or boundary condition I forgot to set? Thanks for your guys help.
- August 2, 2022 at 11:23 pm
  
  Guilin Sun
  Ansys Employee
  
  It can be due to different reasons.
  What is the AIN and are its thermal parameters correct?
  It seems the T=300k boundary is too close to the source, which drains the heat to room temperature. Why do you simulate larger AIN space but not the substrate T=300k?