Timeline for Can I lay traces on internal layers of 4 layer PCB?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Dec 31, 2016 at 9:02 | history | edited | Neil_UK | CC BY-SA 3.0 |
speeling
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| Dec 31, 2016 at 8:54 | comment | added | Jasen Слава Україні | it all depends on how you want the currrents to flow. planes can help with decoupling, or if you have tricky EMC requirements, if you don't you don't need them. | |
| Dec 31, 2016 at 8:53 | comment | added | Chris Stratton | Think about how the current gets to and back from each power consumer on the board - think of the planes as big wide traces, and anything that cuts across the flow is potentially problematic. Also keep in mind that you want both the supply and return paths to be as similar as possible, otherwise you get a loop formed by the differences in path, and that can start to look like a loop antenna radiating interference. | |
| Dec 31, 2016 at 8:38 | comment | added | U7786 | Okay, So any trace having a lot of interconnects like GND would benefit from using a plane instead of layer . | |
| Dec 31, 2016 at 8:36 | comment | added | Jasen Слава Україні | a plane is just a layer that's a pour | |
| Dec 31, 2016 at 8:34 | comment | added | U7786 | Also what's the basic difference between a signal layer and plane? | |
| Dec 31, 2016 at 8:33 | comment | added | U7786 | Thank you @Jasen . Can you please tell or guide me to a source to know the benefits of having planes and not having the same (Power & Ground) as ordinary traces. One I understand might be the interference that can be avoided by having a ground plane in between . | |
| Dec 31, 2016 at 8:28 | history | answered | Jasen Слава Україні | CC BY-SA 3.0 |