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but the way described also allows completely different packages like
dual foot print SO8 and DIP8
good for development and then production
Dennis Saputelli
Dan Beaudoin wrote:
>
> Another way to deal with through holes for surface mount components is just
> to place the through holes as free primatives and make the surface mount
> pads the actual component pads.
> ----- Original Message -----
> From: "Dennis Saputelli" <[EMAIL PROTECTED]>
> To: "Protel EDA Forum" <[EMAIL PROTECTED]>
> Sent: Friday, October 05, 2001 1:46 PM
> Subject: Re: [PEDA] Dual pad components
>
> > that's what i do too
> > it works fine for me
> > Dennis Saputelli
> >
> > [EMAIL PROTECTED] wrote:
> > >
> > > In a message dated 10/5/01 2:05:48 PM Eastern Daylight Time,
> [EMAIL PROTECTED]
> > > writes:
> > >
> > > > We have a connector pattern with two pads per pin. one for through
> hole
> > > > and one for surface mount which we created with a pad 1 for through
> hole
> > > > and pad 1 for surface mount repeating the pattern for 50 pins and
> > > > connecting the pad together with a line. DRC is very unhappy with this
> > > > approach.
> > > >
> > > > Is there a better way to do this?
> > > >
> > > >
> > >
> > > I do such shenanigans by placing two copies of the part on the schematic
> > > right on top of one another. The fact of the doubled part is obvious by
> the
> > > appearance of junctions at every pin end when you connect a wire. Then
> you
> > > just use both footprints on the PCB, again right on top of one another.
> DRC
> > > is then none the wiser. Only problem you'll have with this approach is
> > > connecting output pins to output pins, and you can always either ignore
> those
> > > or place no-erc directives on those schematic pins.
> > >
> > > Steve Hendrix
> >
> > --
> >
> ___________________________________________________________________________
> > www.integratedcontrolsinc.com Integrated Controls, Inc.
> > tel: 415-647-0480 2851 21st Street
> > fax: 415-647-3003 San Francisco, CA 94110
--
___________________________________________________________________________
www.integratedcontrolsinc.com Integrated Controls, Inc.
tel: 415-647-0480 2851 21st Street
fax: 415-647-3003 San Francisco, CA 94110
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