Electronics Forum | Wed Nov 07 17:11:14 EST 2001 | davef
1 CAN WAVE SOLDER AFFECT OR DAMAGE BGA? Sure. Since you are vague, assuming: * Partially assembled board was not stored to prevent moisture absorption. * BGA is in a plastic package. * Partially assembled board was stored long enough to exceed th
Electronics Forum | Wed May 22 19:10:47 EDT 2013 | anvil1021
We do a lot of these devices and I guess I am not familiar the term "Dry Solder". The QFN device is not designed to have a drain hole, but needs to have thermal vias to control heat in most cases. We have used every possible gnd pad design and modifi
Electronics Forum | Mon Oct 11 11:13:32 EDT 1999 | Wirat S.
| | | We've recently encountered this problem where one of our .050" pitch BGA's were reflowing at the wave thus causing shorts... The board was profiled with probes stuck to a QFP solder joint, an 0603, and one of the BGA joints. There was an almo
Electronics Forum | Fri Dec 18 10:18:55 EST 1998 | Dave F
| I have been developing a BGA Process and are having problems with a 310 IO PBGA reflowing. I am achieving good wetting exept 2 to 5 balls on the outer perimeter I have a good profile my air flow is set per mfg spec, the strange thing is that it doe
Electronics Forum | Wed Dec 23 11:11:07 EST 1998 | john watt
| | I have been developing a BGA Process and are having problems with a 310 IO PBGA reflowing. I am achieving good wetting exept 2 to 5 balls on the outer perimeter I have a good profile my air flow is set per mfg spec, the strange thing is that it d
Electronics Forum | Thu Aug 13 19:54:01 EDT 2015 | aemery
The camera assembly is designated as X23; the stencil & board lighting as well as the camera video signal pass through the DB9 connector at the camera. There is a ribbon cable in the vision gantry tray that carries both to the box on the left side o
Electronics Forum | Tue May 16 02:12:58 EDT 2017 | robl
Hi Anthony, Hopefully some of the following may help: 1) Electrics - do you know the rating of each machine and the total load, and can your distribution box take it? Do you have the correct cabling and connectors in place to just plug the machines
Electronics Forum | Tue May 19 10:23:06 EDT 1998 | Mike C
| Howdy Richard, | Welcome to the club! I now dub thee a full fledged member of the "Spotty Gold Finger and Bleeding Ulcer Society"...or SGFBUS for short... (GRIN) | I know it's not funny to be in that position, but there's so many different places t
Electronics Forum | Tue Jun 05 03:56:52 EDT 2001 | JohnW
Flip Chip/uBGA Underfill Visual Standards The aim of this document is to produce some draft text and then select photographs to make up a draft visual standard for inspection. There is also a need to produce some reference material for C Scan image
Electronics Forum | Mon Sep 02 15:20:48 EDT 2013 | aemery
Interesting! not the usual error. In my experience when the vision cables get damaged it shows up and white noise flashes across the monitor. The connections are the easiest to check so here's your system layout with connection points. Starting at
