[SI-LIST] Re: One stitching via or more vias is better for 25Gbps application???

  • From: "Lee " <leeritchey@xxxxxxxxxxxxx>
  • To: <lee.home.61@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
  • Date: Sat, 6 Sep 2014 12:17:28 -0700

No stitching vias are needed.  Where did this idea get started?

-----Original Message----- 
From: Leeyuyun
Sent: Saturday, September 06, 2014 4:25 AM
To: si-list@xxxxxxxxxxxxx
Cc: lee.home.61@xxxxxxxxx
Subject: [SI-LIST] One stitching via or more vias is better for 25Gbps 
application???

Hi, all
I am doing 100Gbps (4x25Gps) product now
How do we put stitching vias when high speed signal change the layer?
This is a differential pair, which has P and N
Someone told me that one stitching vias is better because P and N share the 
common return
Someone told me that more stitching vias is better because loop inductance 
could be reduced more
I am confused which one is better?
Can anyone help me?
Thanks, 
Lee------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field


List forum  is accessible at:
               http://tech.groups.yahoo.com/group/si-list

List archives are viewable at:
http://www.freelists.org/archives/si-list

Old (prior to June 6, 2001) list archives are viewable at:
  http://www.qsl.net/wb6tpu




-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4765 / Virus Database: 4015/8162 - Release Date: 09/05/14 

------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field


List forum  is accessible at:
               http://tech.groups.yahoo.com/group/si-list

List archives are viewable at:     
                http://www.freelists.org/archives/si-list
 
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu
  

Other related posts: