Off hand I would say you would need to use microvia technology. Obvisouly the size of the via you can use depends on ball pitch (.8mm in this case), ball pad size, and electrical clearance rules. Regards, Brent -----Original Message----- From: Fred Dark [mailto:[log in to unmask]] Sent: Friday, September 26, 2003 1:07 PM To: [log in to unmask] Subject: [DC] .8mm BGA Hello all, Sorry.... Its a .8mm BGA... I would like to know if anyone can tell me what trace width, spacing and via size(pad,drill & anti-pad) to use with this footprint... All input is well appreciated, Thanks Regard's, Fred Dark Jr. ---------------------------------------------------------------------------- ----- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------