At 05:16 PM 11/29/2001 -0600, Jeff Stout wrote: >So in a PCB, with a stack up like: > >T >--C-- >1 >--P-- >2 >--C-- >3 >--P-- >4 >--C-- >B
(Typical 6 layer/3 core stackup) >It's only possible to manufacturer: > >T -> 1 >T -> 3 >T -> B >2 -> 3 >2 -> B >4 -> B Yes, you cannot connect layers 1 & 2 (as you have them notated) or layers 3 & 4 without a through-hole via appearing on either layer B or layer T. Or both B and T (cheapest) I think you've got it, heh heh Frank Gilley Dell-Star Technologies (918) 838-1973 Phone (918) 838-8814 Fax [EMAIL PROTECTED] http://www.dellstar.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
