I've just started working with Altera's stratix device and found a reasonably well documentation for laying out fine line BGA pcb.
http://www.altera.com/literature/hb/stx/ch_9_vol_3.pdf It's only worthit if you are looking for additional BGA guidlines for PCB layout rules & measurements. Later... ____________ Brian Guralnick [EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *