Plated and non-plated hole of the same diameter need different drill tools. That is because the plating process applies copper to the inner wall of the hole, so you need a
> -----Original Message----- > From: Thomas [mailto:[EMAIL PROTECTED]] > Sent: Friday, September 20, 2002 7:39 AM > To: 'Protel EDA Forum' > Subject: Re: [PEDA] Unplated pads > > > > > > -----Original Message----- > > From: Rick Wilson (Protta) [mailto:[EMAIL PROTECTED]] > > Sent: Friday, 20 September 2002 15:06 > > To: 'Protel EDA Forum' > > Subject: Re: [PEDA] Unplated pads > > > > > > Thomas, > > > > Make your bottom layer pads have "NO DRILL" - 0 size - > > What??? I'm not sure you understand what I'm on about. How am > I supposed to > push the component legs through the PCB without holes? > > >I'm sure you don't want to have a bottom layer only pad, > with a drill? > > Yes that's what I want. pads and tracks on one side only and > unplated holes > through the pcb. > > > It won't work anyway in the manufacturing process. > > I don't see why not? I've seen hundreds of single sided pcbs > like this. > > > > > The other thing I would suggest is to find out why the > board house is > > asking for this. Do you supply them with an Excelon Drill > > file? The .DRL > > file produced by Protel? If so, they don't need to worry about a pad > > master. > > > > Actually we supply the .pcb file (allot of ppl in Australia do). > > > Last bit of advice. Find another board house. > > No. We have a very long standing relationship with this one particular > company. > Please keep your advice Protel related. > > > > > Rick Wilson > > > > > > > > -----Original Message----- > > From: Thomas [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, September 19, 2002 7:05 PM > > To: 'Protel EDA Forum' > > Subject: Re: [PEDA] Unplated pads > > > > > > The pads are through hole single side only (not SMT). > > > > This particular board I'm working on is single sided however > > it started > > out as double sided. As things progressed I realised it would > > all route > > on a single layer. > > > > I can't change the layer stack manager to a single sided > > board (it seems > > to think the top layer is being used - but it's not). > > > > So I changed all the multilayer pads to bottom layer, hence > > they had to > > have their plated attribute turned off. > > > > > > > > > -----Original Message----- > > > From: John Haddy [mailto:[EMAIL PROTECTED]] > > > Sent: Friday, 20 September 2002 11:03 > > > To: Protel EDA Forum > > > Subject: Re: [PEDA] Unplated pads > > > > > > > > > Are you referring to genuine single sided pads (e.g. surface > > > mount pads), > > > or pads with holes that only exist on one side of the board? > > > > > > If the former, then I can't imagine why the board shop > > would make the > > > request it did, since the pad master would be generated > > correctly for > > > the layer required. If the latter, this technology would > > only be used > > > for non-plated-through-hole boards, so the existence of imaging > > > features on > > > the pad master plot would be irrelevant. > > > > > > Personally, I'd go back to the board shop and ask them > > > specifically why > > > they've made the request. I HATE having to do workarounds > > > that have the > > > potential to support future screw-ups, which is what would > > happen once > > > you get into the habit of ignoring all warnings (or turning > > > them off if > > > that's possible). > > > > > > John Haddy > > > > > > > > > > -----Original Message----- > > > > From: Thomas [mailto:[EMAIL PROTECTED]] > > > > Sent: Friday, 20 September 2002 10:34 AM > > > > To: Protel Data Forum (E-mail) > > > > Subject: [PEDA] Unplated pads > > > > > > > > > > > > Our board house has asked us to de-check the "Plated" box > > > for single sided > > > > pads. > > > > Ok, 1 global edit later and it's done, only one problem > > the DRC now > > > > comes up > > > > with: > > > > > > > > Processing Rule : Broken-Net Constraint ( (On the board ) ) > > > > Violation Net A > > > > Warning - net contains unplated pads > > > > Violation Net N/E > > > > Warning - net contains unplated pads > > > > Violation Net A1 > > > > Warning - net contains unplated pads > > > > etc... > > > > > > > > I realise these are warnings rather than full blown > > violations but > > > > is there any way > > > > to turn this warning reporting off in the DRC report? > > > > > > > > Thanks, > > > > > > > > Tom. > > > > > > > > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
