Electronics Forum | Thu Jan 21 19:43:16 EST 1999 | Ron Costa
What are the problems related to cleaning when using OA tacky flux to replace a PBGA. Will your standard inline cleaner be able to reach all the way under to clean all residue? BGA type is 1.27mm pitch .030 dia. ball plastic. Any info helpful! Thank
Electronics Forum | Fri May 10 14:55:59 EDT 2002 | xrayhipp
Pete, thanks for the input. These are microvias and dont go through the pcb -- they are laser cut to various depths into the board and are .006" dia. on gold plated pads. Paul.
Electronics Forum | Thu Aug 01 04:12:39 EDT 2002 | jk
Anyone have experience with BGA mount on via hole in pad. I'm encountering about 1 to 2% yield loss due to BGA solder short. This is an entek PCB. The BGA pad size is 32 mil, and the via hole (dia. 10 mil) is at the center of the pad. Any professiona
Electronics Forum | Wed Jun 09 02:35:10 EDT 2004 | Bernard
Base on the PORON foam rubber recommended, is it possible to apply on small BGA chip of 4x4 ball size 0.3mm. Any specific part no and supplier for this type of foam and is it a anti-static material? Would it be possible to punch out at dia. 3mm?
Electronics Forum | Wed Mar 02 05:04:36 EST 2005 | ABHI
What is your micro BGA requiremnets? I mean ball dia / height with a 0.5 mm pitch? I can give you the stencil design, if you make known the parameters.
Electronics Forum | Mon Apr 03 07:46:21 EDT 2006 | cyber_wolf
I have a pad layout that has .010" dia. with .010" spacing. Going to use a .004" foil. I know I need to over print them, but how much without causing bridging issues ? Thanks, Sr.
Electronics Forum | Tue Nov 25 15:56:05 EST 2008 | mikesewell
It read to .0001 and was repeatable to +/- .0005. As the SR coating got thicker, it was more sensitive to pressure since the transducer (ours was a 1/8" dia.) would press into the coating. You might request a demo from a vendor and see if it is a f
Electronics Forum | Fri Aug 07 08:53:32 EDT 2009 | zanolli
We are looking for a supplier for solder spheres -- must be a world class supplier for what could be a high volume requirment for .5mm dia spheres -- Any reccomendations
Electronics Forum | Tue Mar 16 20:45:51 EDT 2010 | r_nelson777
check out DIAS in HongKong. They may have what you need. website. http://www.diasautomation.com email. sales@diasautomation.com
Electronics Forum | Thu Sep 02 02:48:01 EDT 2010 | sachu_70
Hi Resse, there seems to be some mistake in translating aa to mil. I thought, 1mm should have been about 40 mil. Pl. confirm. The larger the fid dia, lesser is the accuracy during recognition.