Yes, silkscreen is acceptable and for power boards usually a must.
Ted T
Sent from my iPhone
> On Nov 30, 2017, at 1:42 PM, <[log in to unmask]> <[log in to unmask]> wrote:
>
> Fellow TechNetters:
>
> IPC-1066 covers Lead free markings/Symbols/:Labels, etc. Which IPC Standard covers bare board vendor logo/UL Rating/markings/production date/REV and layer counts. Is silk screening printing of information acceptable beside etch from original external copper foil.
>
> Victor,