This looks like something that I saw being worked on for Intel servers, a
method of quickly routing differential signals on finer pitched sockets. It
looks like they're using it in the mobile devices too (hence "FlowCAD
demonstriert das Snake Routing für mobile intel CPUs in Allegro 16.3"). I'd
think there are alternative routing styles that would work, but this is an
elegant solution if your CAD software supports it.
Jeff Loyer
Signal Integrity Lead
Amazon Web Services (AWS)
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Lee Ritchey
Sent: Friday, December 09, 2016 2:45 PM
To: sergio@xxxxxxxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Diff Pairs Routing - Arc / Snake Routing
It has been shown many times with lab measurements that the shape of corners
does not matter. I agree that there are still may people claiming that they
do. Ask them for some proof!
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On ;
Behalf Of DATACOM - Sergio
Sent: Friday, December 9, 2016 6:29 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Diff Pairs Routing - Arc / Snake Routing
Dear Experts,
Looking reference designs some vendor use Arc / Snake routing in diff pairs
(https://www.youtube.com/watch?v=ujMN-_Zc2eU#sthash.GBifJLcL.dpuf)
some don't.
Do you have some additional information about at which signal frequency it
really have real benefits in signal integrity compared to "45º angled"
layout style ?
Thanks
--
SERGIO Eduardo Spader
DATACOM
System Architect - Ethernet Switches
Rua América, 1000 , Eldorado do Sul - RS CEP: 92990-000
DDR: 51 3933 3234
Skype: datacom_sergio
e-mail: sergio@xxxxxxxxxxxxxx
site: www.datacom.ind.br
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