Guru
Joined: 09/08/2007
Location: AustraliaPosts: 4406
| Posted: 08:28am 21 Apr 2021 |
When you go to the PCB manufacturers quotation page, and select the various options, among them are minimum track widths and clearances.
What you might consider very very small are to them absolutely enormous.
Long gone are the days of etching your own boards in the kitchen sink.
And professional boards never come back with microscopic shorts or open tracks. These days every track, and every via, on every board is probed and 100% tested by a robot that has the complete net list to work from.