Hi I just got a 10 layer board back with the +3.3 plane shorted to the ground plane at 2 alignment pins. The design rules were set for a 14 mil power plane clearance. The alignment holes are plated but do not electically connected to any net. The DRC found no problem and the gerber generator did not flash a plane clearout in the plane layers for these 2 holes. We were able to remove the connector and ream the holes to isolate the planes. The other feature of the rules that are different on this board from others that I have done is that I have 3 additional plane clearance rules that apply to regions of the board under BGAs that require a smaller plane clearance of 12mils. I am surprized that I have not run into this problem before.
Dave Eloranta [EMAIL PROTECTED] Locus Inc. 5540 Research Park Dr. Madison, WI * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
