You are correct. Can't think of any case where they add value commensurate with their cost. Lee -----Original Message----- From: Aaditya K Sent: Wednesday, October 15, 2014 10:41 AM To: si-list Subject: [SI-LIST] Ground vias around signal via Hello Experts, I have a question on ground vias placement around signal via. My opinion is, if we have a proper return path, they are not necessary. Am I correct? Any situations they are useful other than shielding? How will they help? When do we need them? Please help. Thanks Aaditya ------------------------------------------------------------------ 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: //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: //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: 4040/8394 - Release Date: 10/15/14 ------------------------------------------------------------------ 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: //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: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu