Re: [PSES] SV: [PSES] PCB layout technique - multilayer

2020-02-14 Thread Amund Westin
I'm looking into an existing large and complex PCB (500mm x 300mm) with 8 layers. I will not bother you with all details, but the issue is this: We want to change the stack-up in a limited region (70x50m) on this PCB. That means that the original GND plane and the adjacent Signal plane to

[PSES] SV: [PSES] SV: [PSES] PCB layout technique - multilayer

2020-02-12 Thread Amund Westin
Emne: Re: [PSES] SV: [PSES] PCB layout technique - multilayer Hi Amund/Gert, I agree with Gert’s advice, that all (especially high speed) signal layers need to have an adjacent ground return plane in order to properly capture the electromagnetic wave of the digital signals (which travel

Re: [PSES] SV: [PSES] PCB layout technique - multilayer

2020-02-10 Thread Ken Wyatt
Hi Amund/Gert, I agree with Gert’s advice, that all (especially high speed) signal layers need to have an adjacent ground return plane in order to properly capture the electromagnetic wave of the digital signals (which travel in the dielectric space between layers). The one exception, in my

Re: [PSES] SV: [PSES] PCB layout technique - multilayer

2020-02-10 Thread Gert Gremmen
It s an extra layer you might allocate to that low frequency signals , analog signals and or extra power supply. On 10-2-2020 10:22, Amund Westin wrote: Thanks Gert I want to read your advices with great attention. Just one immediately follow-up èThis Misc layer, is it an extra layer for

[PSES] SV: [PSES] PCB layout technique - multilayer

2020-02-10 Thread Amund Westin
Thanks Gert I want to read your advices with great attention. Just one immediately follow-up ==>This Misc layer, is it an extra layer for signal routing, as a Sbott3? Mvh Amund Fra: Gert Gremmen Sendt: 10. februar 2020 09:57 Til: Amund Westin ; EMC-PSTC@LISTSERV.IEEE.ORG Emne: