I am using a standard via of diameter 0.4mm and 0.2mm drill size. How much current does it hole? how to calculate it?
You may use a simple formulary square resitivity * 2 *Pai * r * h / t to calculate out it'resitance ,then check IPC spec. If you have Hyperlynx P
I, you shall get clear version to how much temperature increase.
Yanfeng from Newpad