Electronics Forum | Sun Aug 19 20:14:57 EDT 2001 | procon
Hi Greg, Have you resolved your problem yet? Daves reply to slow the belt may be your best bet. It appears you are not heating the BGA's uniformily. The temp in zone 6 seems to be a bit odd, are you trying to prolong the soak? If so, try to increase
Electronics Forum | Thu Aug 09 15:25:52 EDT 2001 | neil
Your right Dave. The system is set up correctly but sometimes there is a problem deleting messages with attachments. This problem was exacerbated by the scam32 virus. We set up Norton AntiVirus to quarantine these attachments and when you try to dele
Electronics Forum | Thu Aug 16 10:49:35 EDT 2001 | JohnW
Dave, we try and keep the temperture that a BGA is exposed to at wave solder below 150 deg C. At this temperature it's unlikely that you'll get near to starting secondary reflow of the device or that you'll grow any significant amount of intermetall
Electronics Forum | Tue Aug 14 21:16:58 EDT 2001 | mugen
Dave, Do u talk with a whistle then? *grinz* Anyway, thanks for the detour down memory lane, it reminds me of my childhood, A friend and I, stuck a lawn mower motor unit, to my bike, to determine how fast a bike config, could run? It worked alrigh
Electronics Forum | Wed Sep 12 21:16:23 EDT 2001 | raton
The quip; All you can get! By the way, worthy answers above, especially Dave F getting a little tied up is good to see, he's always on the money otherwise. But seriously, watch for damage to other components. Example; thru hole's such as radial c
Electronics Forum | Fri Sep 14 13:07:06 EDT 2001 | bschreiber
Dave, The saponifier (or any additive) will supply free ions and contaminate the DI water. If no contamination is introduced (very difficult) or if fresh hot DI water is constantly added as in a steam age chamber, the DI water will begin to obtain
Electronics Forum | Mon Sep 17 02:56:40 EDT 2001 | mugen
Hi, (me been absent for some time...) Are your brds confirmed HAL over copper? (check out what Dave F mentioned abt possible root causes) or are the brds HAL over nickle? (shd be no problem here, if so?) or are the brds strictly nickle plated pads?
Electronics Forum | Mon Oct 15 17:28:14 EDT 2001 | Brian W.
Boy, does this sound familiar. I agree with Dave, especially his point about board side taping. The kapton tape has a thickness of approximately 2mils. You artificially increase your paste thickness with this method. It also can be a cause for br
Electronics Forum | Wed Nov 21 05:21:39 EST 2001 | frha
Thanks Dave! I agree 100% with you and try not to deceive myself! It is very dangerus to let it be a dam paperwork of must. Good id� to change focus frpm process to product-characteristics!! I will see the benefits and cost savings as well as the t
Electronics Forum | Tue Apr 02 13:35:02 EST 2002 | Mike Konrad
Hi Dave, God no! I am not suggesting that anyone should clean stencils by hand. My answer was facetious. The questioner asked is there was a �cheap and effective� way of cleaning stencils without purchasing equipment. Cleaning stencils by hand m
