Hi everyone,
In most fab house, they asking tolerance +/-3mils for via (PTH) fabrication. But my doubt is, for 12x24 power via, if hole size becomes 12+3=15mils, there is no issues for current flowing. But if hole size becomes 12-3=9mils, the current capacity will reduces and if might be fatal for design. How to overcome this issue?
Any inputs will be greatly appreciated.
Shiva.