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| References: | <5CCF512C-E056-45DF-9C88-944406D6FBDD AT ece DOT orst DOT edu> |
| <60890376 DOT 8030107 AT xs4all DOT nl> <6338EA12-23BE-404A-8AD1-ECD090E3982F AT ece DOT orst DOT edu> | |
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| From: | "Chad Parker (parker DOT charles AT gmail DOT com) [via geda-help AT delorie DOT com]" <geda-help AT delorie DOT com> |
| Date: | Wed, 28 Apr 2021 13:30:55 -0400 |
| Message-ID: | <CAJZxidBSaZP0MBQuY9tkAg1JN7YJETwyBcdxoDcR0zS_tckn=Q@mail.gmail.com> |
| Subject: | Re: [geda-help] via in pad needs tenting...how? |
| To: | geda-help AT delorie DOT com |
| Reply-To: | geda-help AT delorie DOT com |
--0000000000006ec4ff05c10bbee7 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable It doesn't solve your problem of tenting them inside an area that's already been cleared of soldermask for other reasons, but it is possible to create tented vias on a board. If you go into Route Styles and set "Mask Aperture" to 0, then vias you place in that style will have no mask clearance. On Wed, Apr 28, 2021 at 11:16 AM Roger Traylor (traylor AT engr DOT orst DOT edu) [via geda-help AT delorie DOT com] <geda-help AT delorie DOT com> wrote: > Bert, > > Exactly. I understand. I will have a talk with the assembly house to see > what we can do to > lessen the wicking through. This is the issue. > > Thanks for your advice. > > Roger > > > On Apr 27, 2021, at 11:40 PM, Bert Timmerman (bert DOT timmerman AT xs4all DOT nl) > [via geda-help AT delorie DOT com] <geda-help AT delorie DOT com> wrote: > > > > Roger Traylor (traylor AT engr DOT orst DOT edu) [via geda-help AT delorie DOT com] wrote= : > >> Folks, > >> I have an RF part that needs five vias inside its bottom pad. I=E2=80= =99ve > inserted the vias > >> but the were not tented to my surprise. Is there a way to tent vias > that are inside > >> a footprint's center pad? > >> Thanks in advance, > >> Roger Traylor > >> > > Hi Roger, > > > > I assume you want a tented via in an exposed pad to prevent solder from > wicking in the via ? > > > > That would be a difficult feat to achieve in current pcb. > > > > I have never tried this and I would not know if any fab houses are able > to deliver on that request. > > > > Maybe pcb-rnd can help you. > > > > Good luck and kind regards, > > > > Bert Timmerman. > > > --0000000000006ec4ff05c10bbee7 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">It doesn't solve your problem of tenting them inside a= n area that's already been cleared of soldermask for other reasons, but= it is possible to create tented vias on a board. If you go into Route Styl= es and set "Mask Aperture" to 0, then vias you place in that styl= e will have no mask clearance. <br></div><br><div class=3D"gmail_quote"><di= v dir=3D"ltr" class=3D"gmail_attr">On Wed, Apr 28, 2021 at 11:16 AM Roger T= raylor (<a href=3D"mailto:traylor AT engr DOT orst DOT edu">traylor AT engr DOT orst DOT edu</a>)= [via <a href=3D"mailto:geda-help AT delorie DOT com">geda-help AT delorie DOT com</a>] &= lt;<a href=3D"mailto:geda-help AT delorie DOT com">geda-help AT delorie DOT com</a>> w= rote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0p= x 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Bert,<br> <br> Exactly.=C2=A0 I understand. I will have a talk with the assembly house to = see what we can do to<br> lessen the wicking through.=C2=A0 This is the issue.=C2=A0 <br> <br> Thanks for your advice.<br> <br> Roger<br> <br> > On Apr 27, 2021, at 11:40 PM, Bert Timmerman (<a href=3D"mailto:bert.t= immerman AT xs4all DOT nl" target=3D"_blank">bert DOT timmerman AT xs4all DOT nl</a>) [via <a= href=3D"mailto:geda-help AT delorie DOT com" target=3D"_blank">geda-help AT delorie.= com</a>] <<a href=3D"mailto:geda-help AT delorie DOT com" target=3D"_blank">ged= a-help AT delorie DOT com</a>> wrote:<br> > <br> > Roger Traylor (<a href=3D"mailto:traylor AT engr DOT orst DOT edu" target=3D"_bla= nk">traylor AT engr DOT orst DOT edu</a>) [via <a href=3D"mailto:geda-help AT delorie DOT com= " target=3D"_blank">geda-help AT delorie DOT com</a>] wrote:<br> >> Folks,<br> >> I have an RF part that needs five vias inside its bottom pad.=C2= =A0 I=E2=80=99ve inserted the vias<br> >> but the were not tented to my surprise.=C2=A0 Is there a way to te= nt vias that are inside<br> >> a footprint's center pad?<br> >> Thanks in advance,<br> >> Roger Traylor<br> >>=C2=A0 =C2=A0<br> > Hi Roger,<br> > <br> > I assume you want a tented via in an exposed pad to prevent solder fro= m wicking in the via ?<br> > <br> > That would be a difficult feat to achieve in current pcb.<br> > <br> > I have never tried this and I would not know if any fab houses are abl= e to deliver on that request.<br> > <br> > Maybe pcb-rnd can help you.<br> > <br> > Good luck and kind regards,<br> > <br> > Bert Timmerman.<br> <br> <br> </blockquote></div> --0000000000006ec4ff05c10bbee7--
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