Electronics Forum | Fri Jul 13 10:57:04 EDT 2007 | dboudreau
Dear all, we are using the lead-free SN100C solder alloy for wave soldering. We are experiencing wetting problems each time we have to solder a thick board or a board with a large ground plane.I think that maybe we are not using the right flux. I w
Electronics Forum | Tue Sep 26 20:19:51 EDT 2000 | Dave F
Never heard of N-Tech. Whose material do they use? Two common materials are: Imidazole (Via Systems) and Entek (Enthone) OSP is a lacquer that fabs apply to boards by either spraying or dipping. What thickness control does your fab use? For inst
Electronics Forum | Mon Aug 13 16:07:08 EDT 2007 | dyoungquist
We run double sided surface mount boards through our Heller oven without any parts falling off the bottom side unless they are too big/heavy. The trick we use is to set the bottom side temperature in the final 3 heat zones 10C-20C lower than the top
Electronics Forum | Mon Oct 31 14:48:45 EST 2005 | valuems
Hello again Just thought of another problem. Do you have board supports under the component that you are having problems with? harry
Electronics Forum | Fri Jul 13 12:27:30 EDT 2007 | jseagle
As in more dwell? We see the same problem with through holes connected to power or ground planes. The solder reaches the plane and stops. We are having our boards re-designed to increase the thermal relief and expand the hole size. We are also tr
Electronics Forum | Tue May 19 08:48:05 EDT 1998 | Aric Parr
| | I am running boards with gold fingers on a pallet for | | masking purposes. The pallets worked fine for a while | | but know the gold fingers are getting solder on them. We | | have tried everythin: new pallets, cleaning the pallet | | and boa
Electronics Forum | Tue Apr 27 10:51:30 EDT 2004 | smtguy
It's a bunch of test pins that the board sits on to get tested. HP is a popular supplier of this kind of machine.
Electronics Forum | Fri Jul 29 08:50:30 EDT 2005 | bandjwet
For these type of connectors proper underside board heating, a customized nozzle and careful past printing are the keys to reworking properly. Pls contact BEST Inc at http://www.solder.net offline if you need someone to look at these for you. Regar
Electronics Forum | Fri Oct 28 06:59:45 EDT 2005 | Rob
From what I remember there is a "snap off" setting in the AP25, where you can set the separation speed & I think it may also vibrate the board a little.
Electronics Forum | Mon Oct 31 03:32:45 EST 2005 | pavel_murtishev
Good day, We are using dedicated vacuum tooling. I can�t turn off the vacuum because board will not be fixed at all. BR, Pavel