How to share with you the footprint on the forum by being new user ?
I receive an error message during the upload “Sorry, new users can not upload attachments” …
Probably the clearance setting for your track can’t be enforced because of the central pad. You can either escape the pad with a smaller track that is connected to your 1.0mm main track, or (my favourite option) you can use a copper pour zone for that pad connection (it helps with removing heat from the LED).
Indeed, if you look at the datasheet you can see that continuous copper areas are recommended. The H shape isn’t important, it’s just a suggestion. You can for example add vias to it and another thermal copper area to the bottom of the board.
Hi @6temrepair. I might have not been clear enough.
First of all, don’t use copper polygons on your footprints - it’s a really bad practice and should be used very, very carefully for very specific use cases.
The central pad of the LED should be built as a pad, not a graphical polygon in the copper layer (they are quite different things - the pad will link to your schematic, while the copper polygon will be a bunch of copper where you can’t connect anything - not very useful).
What I was suggesting was that you put your footprint on your PCB and then you should add a “Filled Zone” (look up the icon “Add Filled Zone”) - this will let you associate that “zone” with a specific net and if the zone covers the pad, it will make the necessary connections.
(The colors are a bit different because this is from the unstable version 5.99.)
See the arrows. One points at the track segment which is 1 mm wide. The other points at the clearance line of the pad 3. The track violates DRC rules, therefore you can’t do it.
Use zones instead of tracks. As was said, it gives better thermal cooling for the power led.
No problem. I hoped that there was a translation error there. You can edit your profile to give a location (as general or specific as you desire, for example I give a general “Northern Delaware, USA” instead of my specific city). That gives us an idea what language you might speak.
This looks strange, the thermal reliefs are missing. Did you press “B” to update the fills? Maybe read a tutorial on fills?
The fill sould be wider so you get connections to the sides as well. Try to replicate the example tiagogala posted above.
@MartinS yes, fills is updated, I’m new to Kicad and PCB in general, I do not understand how the filled zones works, and I do not find much documentation in French …
I have only 4 LEDs on the PCB (component on the front copper layer only), I think ultimately reduce the track width … filled zones it’s much more complicated than I imagined …
Can someone make a second filled zones example ? I will appreciate
@paulvdh Thank you for the link, yes I already had some tutorials on PCBNew but it’s pretty complicating sometimes, I do not have a global view of making a PCB, we learn every day
