Findings Summary:
In summary the changes to the board stack-up and copper weights have caused the change to expected impedance values, the poor through hole conditions have more than likely caused the intermittent open circuits. The poor registration would cause concern for the long term reliability of the board.
The Benefits of using MHA Int-Elect:
The approach MHA takes would eliminate all of these issues, with:
We now have a new customer who has successfully re-designed his most demanding board, and just placed an order for a production batch following a successful prototype build and test supplied by MHA.
To see how MHA Intelect can help you please contact us