PCB design checklist

This revision is from 2020/12/18 08:05. You can Restore it.

General

• A Power LED!
• Check connector pin sequence (is it mirrored?)
• Check inverted logic is used and named properly
• ERC and DRC
• I2C: pullups ok?
• Are decoupling caps at the right place?
• Via placement for ground plane?
• Check track width. Enough vias? Via diameter?
• No via under pad.
• Add test points?
• Check thermal management
• Silkscreen labels for jumpers and connectors
• Verify that silkscreen component labels are next to their component
• No silkscreen over pads!
• Verify mounting holes position
• Verify clearance around mounting holes to avoid shorts
• Verify 3d clearance if several boards stacked or if it has to fit in an enclosure.
• Double-check orientation of connectors
• No silkscreen over vias or pads
• Silkscreen board name and revision. Optional which square for tested tick
• Machine assembly: add fiducials, check part centroids, check pin 1 location (IPC-7351)
• Check solder mask clearance

RF tips

• Michael Ossman's rules: 4 layers, ICs, 50 Ohms everywhere, follow recommendations, route RF first

At order time

• What PCB thickness to use?
• Manufacturers: Oshpark, Aisler, Seeed, Eurocircuits

When using an ATmega:

• Crystal: frequency, load caps, 1M
• VCC decoupling caps
• RESET pullup
• AUTO RESET necessary for arduino bootloader programming
• Decouple AVCC with ferrite BLM15BB221SN1D and 10uF

More at https://pcbchecklist.com/