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--- ee:pcbdesign [2019/01/04 08:13] – fkr@staff.hsrw
+++ ee:pcbdesign [2025/11/14 15:47] (current) – FKR@staff.hsrw
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+====== PCB design guidelines ======
+[[https://hackaday.io/project/6936-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:
 [[https://www.aetzwerk.de/eagle|Ätzwerk files for EAGLE design rule check]]
-[[https://hackaday.io/project/6936-pcb-design-guidelines|Hackaday PCB Design Guidelines write-up]]
+==== Design considerations for self-etched PCBs at the university ====
+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.
+===== Common mistakes =====
+Trust in autorouter
+Wrong track size
+Use of discontinued or unavailable components
+No prototyping/simulation
+===== misc =====
+Use SMT footprints you can handle, e.g. 1206 for standard resistors and capacitors
+===== Design rules Düngelhoef =====
+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:
+    -Max. 100 x 160 mm
+=>Minimum Feature Sizes
+   ->Copper features & Trace Width
+     -Recommended: 0.6mm
+     -Minimum: 0.4mm
+    ->Distance Copper/Copper (Isolation distances)
+      -Recommended: 0.6mm
+      -Minimum: 0.4mm
+    ->Available Via Sizes
+      -Small (Via 0.6mm, Pad 1.5mm, drill 0.9mm);
+      -Large (Via 1mm, Pad 2.5mm, drill 1.5mm)
+=>Other Important Things
+      -Through hole parts located on the top have to be connected on the bottom layer
+      -Through hole parts located on the bottom layer have to be connected from the top
+      -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!
-Available sizes for making vias: 0.6mm and 1.0mm (drill size?, pad size?)