Hi Peter!

The IPC-A-610C spells out that for Class-I, the width cannot be reduced by
more than 30% of the original width, and for Class-II and Class-III, it's 20%.

-Steve Gregory-


Does anyone know if there is a min. acceptance
standard for the copper conductors on PCB,
specifically on the traces width?

I am encountering partially broken traces on a board
and thinking at which point should I start looking at
the option of repairing.

Rgds,
Peter