Hello!
I'm using this kind of mesh parameter for discrete power devices, in 2D modeling. So then, I noticed that the current with a cylindrical mesh device is larger than a device without this parameter.
In this case, the area of the cylindrical device is larger than the other device. But I would like to know how this area is generated; in this case, if I have a device with a cylindrical mesh of 1 um in the X direction, it would definitely be a cylinder with 1 um radius.
I got some approximate data from the equation below.
R = V/I ( I run a simulation to acquire the current value I ) So then, I found the resistance and then used this resistance in the resistivity equation to find the area.
A = (rho* L) / R, and
The obtained value is approximately 3.04 um² , which is around the area of 1 um radius (3.14 um²)
So, the values are close each other, but I really want to know what is the area the device creates when cylindrical coordinate in mesh statement is created>