Hello all: I have a question here regarding the stack up for blind/buried boards. Is this necessary to have ROUTING layer adjacent to Top and Bottom layers or we may have Planes (negative) layers adjacent to Top/Bottom and then a positive routing layer. In case we have planes layer adjacent to TOP, then the TOP-Blind via must be like from TOP->Plane->Signal layer, right? Looking forward to some expert opinion. Cheers, Hamid. ----------------------------------------------------------- To subscribe/unsubscribe: Send a message to icu-pcb-forum-request@xxxxxxxxxxxxx with a subject of subscribe or unsubscribe To view the archives of this list go to //www.freelists.org/archives/icu-pcb-forum/ Problems or Questions: Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx -----------------------------------------------------------