Just FYI.... Design for breakaway tabs can be found in IPC Standard IPC-2222 although I personally don't find it very helpful...
Tim Fifield -----Original Message----- From: Danny Bishop [mailto:[EMAIL PROTECTED]] Sent: Tuesday, June 25, 2002 8:39 PM To: 'Protel EDA Forum' Subject: Re: [PEDA] PCB breakoffs Ivan the technique you describe is a standard way to panelize/depanelize boards with FR4( to be used with routing, rather than scoring/v-grooving), but I don't know about running tracks between them. I wouldn't break it off with copper connecting the two parts together. Perhaps you should consider an IDC connector between the two. Danny > -----Original Message----- > From: Bagotronix Tech Support [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, 25 June 2002 5:16 AM > To: Protel EDA Forum > Subject: [PEDA] PCB breakoffs > > > Hello, all: > > We have had our domain transferred to a new ISP last week, so > e-mail has > just begun working normally (I hope!). > > Anyway, I want to make a PCB that has a "break-off" area with extra > circuitry on it. The idea is that some users may not need the extra > circuitry, so they can break off that area of the board to > reduce the size. > I know this is easy for cheap PCB material (phenolic, etc.) > but does this > work with FR-4 and such? > > If this is feasible with FR-4, what technique should I use to make the > break-off? I assume I will have to lay out a bunch of > unplated holes spaced > in a line, with traces going inbetween holes. And I assume > that the way to > indicate this to the fab is to put comments on the drill layer. > > Thanks in advance for your help. If no one replies, I will assume our > e-mail still isn't working right. > > Best regards, > Ivan Baggett > Bagotronix Inc. > website: www.bagotronix.com > > > > > ************************************************************** > ********** > * Tracking #: E0D56A16817ACA4091A0139DC100BD9938215AA3 > * > ************************************************************** > ********** > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
