For some reason this email never reached me. I assume the file was an attachment, maybe our incoming virus grabber nabbed it without notifying me. It sounds like the Z traces could be an attempt at adding series inductance in power traces as a filter for noise. >From: Andre Abelian >To: >Sent: Monday, February 11, 2002 7:30 PM >Subject: [EE]: about PCB traces > > > Hi to all, > > Apologize if the tag isn't right. > Friend of mine sent me a picture of this attached board > that I couldn't recognize the purpose of traces being like that. > The board is hatched by very specific way > Any idea why traces are like that? Is it for RF? > > Andre > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.