Electronics Forum | Thu Aug 11 16:20:54 EDT 2005 | pjc
I have seen good results on OmniFlo 5 for Pb Free solderpastes PROVIDED the boards are low to medium thermal mass and have no high conveyor speed (high production) requirements. Max peak temp you can set on O5 is 280C, enough to get 230C on-board tem
Electronics Forum | Fri Aug 26 10:02:31 EDT 2005 | S vaughan
Hello, Can anyone comment on the implications of small sodler balls under a leadless device such as LLP with a centre thermal land. I believe that we did not make a good reduction and the paste squeezed out of the centre land and balled up under the
Electronics Forum | Wed Aug 31 12:49:04 EDT 2005 | kmeline
I have been having the same problem with the LLP. I have three stencil I have done reduction on. The first I went by the manufacturing recommendations. The last two I have done more reducing for the thermal pad. The last one was at a 20% reduction an
Electronics Forum | Fri Nov 04 11:18:34 EST 2005 | patrickbruneel
I agree with Dave 100%, ATC will expose the board and components weaknesses and potential design problems and/or the need for conformal coating. The life span can only be predicted and/or extended by well-documented field failure analyses history and
Electronics Forum | Fri Nov 11 04:35:06 EST 2005 | Rob
Hi Arnold, Some wave solder machines have a preheat function, that raises the board temperature before soldering. Some transformers use single use thermal fuses/TCO's inside, that trip at a set value (in a range approx. 70 degrees C to 180 degrees
Electronics Forum | Fri Nov 25 12:12:46 EST 2005 | pjc
To state whether an oven can or cannot "do lead free" very much depends on what type of product you need to solder. High thermal mass products are problems for 4 and 5 zones ovens becauase they typically cannot follow the solderpaste mfrs. profile, u
Electronics Forum | Mon Dec 26 12:58:17 EST 2005 | davef
As an alternative theory to the boards being damaged in the wave soldering process, it's possible that the panels are being handled in a way that flexes the panel and breaks the capacitors. In this possibilty, we'd expect capacitors in specific loca
Electronics Forum | Sun Jan 01 22:48:46 EST 2006 | Joseph
We are using selective soldering pallet, which the soldering flux is Interflux 2005M. We encountered the poor hole fill mainly at the heat sink components. Initially we tried to apply more heat but tend to overkill the flux activity. After some modif
Electronics Forum | Thu Feb 16 13:03:52 EST 2006 | Tom Winchell
Assuming the AL tape shorts the wires for the thermocouple, you effectively have three junctions at the business end of the wire: wire 1 to AL, wire 2 to AL, and wire 1 to wire 2. If the temperature of the junctions wire 1 to AL and wire 2 to AL are
Electronics Forum | Tue Feb 21 13:40:11 EST 2006 | slthomas
The SuperMole Gold uses a proprietary rechargeable Ni-MH battery design and while it's a nice unit and I'd love to have one now, I wouldn't want to have to replace the battery. In other words, it's going to cost you. FTR, the last one I used was rou
