no. its optional, for additional cooling if required. it's not. ----- Original Message ----- From: "Jim Walker" <[EMAIL PROTECTED]> To: "Protel EDA Discussion List" <[email protected]> Sent: Sunday, December 25, 2005 2:58 PM Subject: Re: [PEDA] Touch up Solder mask?
> Forgive me if I am missing the point but isn't the pad on the bottom of > the IC there for the purpose of being soldered to a matching pad on the > board? Isn't it necessary for heat sinking or grounding? > > Jim Walker > Walker Power Design, Inc. > www.walkerpowerdesign.com > > > Leonard Gabrielson wrote: > > Thanks very much guys!! > > Len G. > > > > > > ----- Original Message ----- > > From: "Harry Selfridge" <[EMAIL PROTECTED]> > > To: "Protel EDA Discussion List" <[email protected]> > > Sent: Saturday, December 24, 2005 3:37 PM > > Subject: Re: [PEDA] Touch up Solder mask? > > > > > > > >>Here's a page for an overcoat touchup pen sold by DigiKey: > >> http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=75&M=CW3300G > >> > >>and here's a page for high temperature Kapton tape that can be used > >>as a temporary solder resist covering: > >> > > > > http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=19&M=5413%20%201/2%22 > > > >>Regards - Harry > >> > >> > >> > >> > >>At 01:44 PM 12/24/2005, you wrote: > >> > >>>oops. let me try this again... > >>> > >>>Hello all, > >>> > >>>I have an 8-pin SOIC that has an exposed ground pad on the bottom of > >>>it (Analog Devices AD8000), and find that there are a couple of vias > >>>under the IC that I am afraid might be shorted by this pad. > >>> > >>>Does someone know of where to buy a small quantity of touch-up > >>>solder mask so I can cover the IC pad or the vias before wave soldering? > >>> > >>>Thanks much, & Merry Christmas. > >>> > >> > >>snip > >> > >> > >> > >>____________________________________________________________ > >>You are subscribed to the PEDA discussion forum > >> > >>To Post messages: > >>mailto:[email protected] > >> > >>Unsubscribe and Other Options: > >>http://techservinc.com/mailman/listinfo/peda_techservinc.com > >> > >>Browse or Search Old Archives (2001-2004): > >>http://www.mail-archive.com/[email protected] > >> > >>Browse or Search Current Archives (2004-Current): > >>http://www.mail-archive.com/[email protected] > >> > > > > > > > > > > ____________________________________________________________ > > You are subscribed to the PEDA discussion forum > > > > To Post messages: > > mailto:[email protected] > > > > Unsubscribe and Other Options: > > http://techservinc.com/mailman/listinfo/peda_techservinc.com > > > > Browse or Search Old Archives (2001-2004): > > http://www.mail-archive.com/[email protected] > > > > Browse or Search Current Archives (2004-Current): > > http://www.mail-archive.com/[email protected] > > > > > > > ____________________________________________________________ > You are subscribed to the PEDA discussion forum > > To Post messages: > mailto:[email protected] > > Unsubscribe and Other Options: > http://techservinc.com/mailman/listinfo/peda_techservinc.com > > Browse or Search Old Archives (2001-2004): > http://www.mail-archive.com/[email protected] > > Browse or Search Current Archives (2004-Current): > http://www.mail-archive.com/[email protected] > > ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
