>what you thought was an electrical connection becomes an open circuit Yes, this is my problem.
Recently, I found an error in a design, a Track and a via with same net is tangent, It is connected in the virtual world but at the real world is broken, So I think, In theory, A 0 gap between two entites should be regard as connected, but it is very critical, especially in the tangent condition (Line to circle or arc, and so on), I think regard it as open is more reasonable. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, May 13, 2004 8:21 PM To: [EMAIL PROTECTED] Subject: Re: [PEDA] "0 Gap" Means Touch or Not? I think the gap between entities suggests the gap between edge features on each entity, not between centers. While the entities MAY be touching within the virtual world, etch-back at the real-world board-house may mean that what you thought was an electrical connection becomes an open circuit. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > Sent: Wednesday, May 12, 2004 11:12 PM > To: [EMAIL PROTECTED] > Subject: [PEDA] "0 Gap" Means Touch or Not? > > Dear Members, > > P99SE, The gap between a track and a via is exact 0, DRC does > not show this issue, obviously, It consider the track and the > via is connected. Verify the gerber with IPC-D-356A netlist, > also does not find this issue, But on the finish board, the > track and the via is broken. So I got a question as topic, > Does anyone have a good idea to find this problem, except > much more carefulness during design. Thanks. > > Best Regards, > Luo. > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
