search

ut-robotics / picr22-team-saga

0 stars 0 forks source link

Unnecessary vias #34

Closed ReikoR closed 2 years ago

ReikoR commented 2 years ago

  1. There are a lot of vias connected only on 1 layer. This can also be checked with DRC. image

  2. You don't need that many vias for low currents. Up to 2 per decoupling capacitor is enough. Adding to many vias inside pads can make soldering hard. image \ Something like this would be good for most decoupling capacitors: image Keeping +3.3V and GND vias close to each other makes sure that electric field between them spread out less.

  3. Programmer connector does not have any high currents. 1 via per pin is enough. image

AnishShr commented 2 years ago

Unnecessary vias removed

AnishShr commented 2 years ago

Can we put just one via in the Isolators pins and decoupling capacitors?

ReikoR commented 2 years ago

  1. Another thing to avoid are wide gaps in copper fills created by vias that are close to each other: image \ More space should be added between vias: image

  2. Use same small size via everywhere on the board: image

AnishShr commented 2 years ago

Uniform via size maintained all over the PCB with gaps maintained as well.