Ralph
Go to http://www.connecteda.com/ and read the article Autorouting Techniques/ Using ELECTRA with Protel. Mike Reagan -----Original Message----- From: Ralph Effinger [mailto:[EMAIL PROTECTED] Sent: Monday, July 26, 2004 9:10 AM To: [EMAIL PROTECTED] Subject: [PEDA] first BGA layout I am haveing trouble laying put an 8 layer board. I have a schematic, board with chips, resistor,caps and one 256 bga. The bga has a 1mm pitch. I have setup the layer stack mang. and the desing rules the best I know how,{this is my first bga}. I layed out the board using blind or buried vias. I am using protell 99se. after auto routing the board, the vias all go from the top layer to the bottom not useing any blind or buried vias. I,ve looked at the tutorials and book, and can find nothing to help me. thank you! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
