Electronics Forum | Wed Mar 28 08:34:31 EDT 2007 | Mark
Hello, I am trying to find out your opinion about using soldering bench top soldering robot to solder THT connectors (diffrent). What is your experinces and what is limitation for this system. We can't use wave soldering machine due to the complex
Electronics Forum | Tue Aug 26 09:33:04 EDT 2008 | wavemasterlarry
If this board is waved soldered than you may want to look at the wave causing the BGA to reflow a 2nd time when it goes over the wave. The board bows down and the the joint liquidfies and then hardens before the board fully goes back to flat which c
Electronics Forum | Mon Oct 16 20:42:22 EDT 2000 | Dave F
Pete: It sound like somewhere through all that you should have gotten good product. Here�s a couple of questions on your board: * How are the SOIC positioned relative to the wave? * How are you controlling the flatness of the second wave? * What
Electronics Forum | Wed Sep 08 17:28:11 EDT 1999 | Earl Moon
| | Has anybody have any experience with Top placement of BGA's. GLue descretes on bottom and then wavesolder.? | | | | | | | Hi Chris, | Why don't you process a double side reflow and use selective wave fixture for wave process. The process w
Electronics Forum | Fri Jan 24 17:00:56 EST 2003 | razan3
RMA needs to be dry prior to the wave to work. If coverage is good and part orientation is good, then you should be okay. Pad size can be adding to the amount of material left as well. Granted it soldered before fine with .2 long leads, I would di
Electronics Forum | Tue Oct 28 09:47:50 EST 2003 | woodsmt
It is possible to use a selective wave soldering fixture to "mask" the BGA devices from the wave. Unless you have a very thick board or one that is tough to heat, you should have no problem with BGA. Of course you should run some process experime
Electronics Forum | Mon Mar 12 10:29:07 EDT 2007 | george
Are you using wave solder pallets? I use same flux and solder as you do. I've seen this problem when some walls in the wave fixture cause a "shadowing effect"...if you enlarge those openings you will increase the dwell time eliminatting voids (if the
Electronics Forum | Thu Sep 03 10:13:38 EDT 2009 | markgray
Our wave started leaking a year ago. We welded, patched inside and outside the pot with metal patch. This works if you leave your wave on all of the time. If you turn your pot on and off consantly, the temperature cycles will bring the crack back. Ty
Electronics Forum | Sat Mar 20 00:29:07 EST 1999 | Vinesh Gandhi
| | Hi Folks, | | This is my first surface mount board, so I asked our assembly house for some tips. They said only passives on the bottom side-preferably no smaller than 0805, 0603 only if I have to. I would think that an SOT-23 would be OK on the b
Electronics Forum | Thu May 06 20:11:46 EDT 2004 | gregoryyork
It does sound like your leads are to long, speeding it up will reduce volume on lead and most will wick up the joint but when slow excess solder is left as long leads will have little flux left to aid drainage when it leaves the wave, thus giving a s
