PCB design guidelines

Hackaday PCB Design Guidelines write-up

Perform you submit a PCB for manufacturing please perform ERC (electrical rule check) and DRC (design rule check). As the standard rules in EAGLE are not precise please use these files for DRC: Ätzwerk files for EAGLE design rule check

The biggest PCB blanks we stock at the university are 160 mm by 100 mm. Your designs should not be bigger than that.

Available sizes for punching vias in the university: 0.6 mm (drill 0.9 mm, pad 1.5 mm) and 1.0 mm (drill 1.5 mm, pad 2.5 mm). Große Nieten (Innendurchmesser = 1 mm):

Passendes Via: Bohrung (= Bohrlochdurchmesser): 1,5 mm Durchmesser (= Außendurchmesser): 2,5 mm

Kleine Nieten (Innendurchmesser = 0,6 mm):

Passendes Via: Bohrung (= Bohrlochdurchmesser): 0,9 mm Durchmesser (= Außendurchmesser): 1,5 mm

Through-hole (THT) components need to be routed to at the bottom layer.

Trust in autorouter

Wrong track size

Use of discontinued or unavailable components

No prototyping/simulation

Use SMT footprints you can handle, e.g. 1206 for standard resistors and capacitors

ATTENTION! If you want to have your PCB produced at HSRW, it is really important that you have read and understood the following in order to avoid problems later on! Design Rules For Etching At HSRW ⇒PCB dimensions:

1. Max. 100 x 160 mm

⇒Minimum Feature Sizes

1. >Copper features & Trace Width
   1. Recommended: 0.6mm
   2. Minimum: 0.4mm
   3. >Distance Copper/Copper (Isolation distances)
      1. Recommended: 0.6mm
      2. Minimum: 0.4mm
   4. >Available Via Sizes
      1. Small (Via 0.6mm, Pad 1.5mm, drill 0.9mm);
      2. Large (Via 1mm, Pad 2.5mm, drill 1.5mm)

⇒Other Important Things

1. Through hole parts located on the top have to be connected on the bottom layer
2. Through hole parts located on the bottom layer have to be connected from the top
3. You may otherwise be unable to solder your parts properly!

WARNING: Not following these rules is risky and may often lead to a defective PCB!