Fred - Check with you fab house. One of the ones I work with has done a stack up of 14 layers in 0.062" thick. They tell me that they can go 16 layers and stay at the high end of 0.062"+/-10%. If you need to do this and your current fabricator won't/can't e-mail me and I will send you my fabricators contact info off line. Jeffrey A McGlaughlin, CID Engineering Designer Battelle Memorial Institute Columbus Ohio http://www.battelle.org [log in to unmask] -----Original Message----- From: Fred Dark [mailto:[log in to unmask]] Sent: Wednesday, September 10, 2003 12:19 PM To: [log in to unmask] Subject: [DC] 12layer board Hello All, I would like to know if a 12layer board be a .062thk board and at what point dose the board become thicker? Can you help with this? 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 ---------------------------------------------------------------------------------