On Thu, 11 Mar 2010, Alex Joni wrote: > Date: Thu, 11 Mar 2010 20:47:48 +0200 > From: Alex Joni <alex.j...@robcon.ro> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Beagle Board > > BGA's sure are tricky, but you can solder them manually using a hot air > system (seen a friend of mine doing it a couple times). > the only problem is aligning them, that takes a bit of skill... > > Regards, > Alex
Yeah, just build up a little corral for the chip with maybe 5 mils or so slop on each side. (surface tension will bring chip into alignment when the solder balls melt) liberally flux and apply hot air gun to back of card, no solder paste needed. I wouldn't _ship_ anything done this way, but its OK for protos. Also do the BGA(s) first so you can sight underneath the chip to check for shorts... > > ----- Original Message ----- > From: "Jon Elson" <el...@pico-systems.com> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Thursday, March 11, 2010 7:49 PM > Subject: Re: [Emc-users] Beagle Board > > >> Yanjun Luo wrote: >>> Here is my project web site, http://code.google.com/p/openomap/ >>> >> WOW! Very impressive! How do you deal with the BGA parts? I don't >> know how to solder them. >> >> Jon >> > > > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
