...that is the question: I'm making a footprint of a 128 pin qfp 0.4mm pitch. I have seen people use a pad that is .070 x .010. Now with those numbers it would give me approx 2 mil's of LPI in between pads and approx 2 mil's guard from edge of pad to start of LPI mask in the web between the pads.
My pcb house says he needs a min. of 5 mils of LPI to stick to the board and around 3 mil's clearance to register the mask around the pad. With this kind of qfp is it possible to have a mask between pads? Would it be dangerous to make the pad width thinner? From 10 mil to ??? Any help would be appreciated. Best regards to the group, Tom Robinson * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
