We don't use a contract manufacture, its done in house.
But we have an unwritten rule (well I cant find it anywhere!) that
no more than 2 tracks go under a 1206
and they have to be 10 thou thick max.
I think....I cannot remember too well, although if you did the math
it might work out somewhere around there.
However, the production dept. does complain when we have either
legend or tracking under resistors etc.
based on legend causing Tombstoning and if tracks are too close to
pads underneath a potential solder short
could exist and not be spotted.
So to stop them whinging, I don't jump with anything smaller than a
1206, that way we only need to stock 1 part.
Matthew.
> Just curious....how does your contract manufacturer take to any traces
> under
> 0603 & 1206 resistors ??
>
> Ours complains because of the risk of tomb-stoning when any feature, such
> as
> silkscreen, vias, traces are under
> these descretes .....again..." in search of an ideal world ".....
>
> Regards
> TDK
>
>
>
> > -----Original Message-----
> > From: Matthew Lamkin [mailto:[log in to unmask]]
> > Sent: Wednesday, October 23, 2002 7:37 AM
> > To: [log in to unmask]
> > Subject: Re: [DC] SMT Jumpers
> >
> >
> > As Don says, use zero ohm resistors, we use a 1206
> > exclusively for "jumping"
> > tracks, allowing 2 tracks through it, although if you want
> > to jump more you should be able to get a larger size.
> >
> >
> > > -----Original Message-----
> > > From: Mark Mainland [SMTP:[log in to unmask]]
> > > Sent: Wednesday, October 23, 2002 2:00 PM
> > > To: [log in to unmask]
> > > Subject: [DC] SMT Jumpers
> > >
> > > Hello,
> > > I've got a board that needs to be routed on a single side,
> > I'm looking for
> > > some SMT jumpers that come on tape & reel. I have looked at
> > Zierick but
> > > they only have a .300" & 1.5" size, does anybody have a
> > source that has
> > > more sizes available?
> > >
> > > Thanks.
> > >
> > >
> > >
> > > Mark Mainland, C.I.D.
> > > Sr. PCB Designer
> > > Cherry Electrical Products
> > > 3600 Sunset Ave.
> > > Waukegan, IL 60087
> > > PH: 847-662-9200 Ext. 3359
> > > FAX: 847-360-3551
> > > Pager: 888-819-0198
> > >
> > >
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