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 | Tue May 29 07:06:03 EDT 2012 | aj
spacing is very tight but you should be able to get it right... If possible try and run it at 45 degrees over the wave and see how you get on... we had a similar problem and this improved things dramatically ( but we had a selective pallet that wa
Electronics Forum | Mon Jan 15 13:31:11 EST 2007 | John S.
Since it is in a pallet, I would be sure the preheat temperature is correct across the entire assembly. We've seen large temperatue delta's across assemblies that are soldered in pallets. Could be overheated even or contact time too long. Interest
Electronics Forum | Wed Feb 20 08:17:32 EST 2008 | ck_the_flip
Steve, KIC does. The new KIC2000 has built in dwell time sensors. You can buy KIC's wavesurfer option (like MOLE's waverider), or you can engineer a custom pallet for 1/3 the price. I made a custom pallet and took advantage of the KIC's automatic
Electronics Forum | Fri Aug 13 10:19:35 EDT 1999 | Boca
| | We are using a mixed technology process with mostly through-hole parts plus some SMT IC's on the component side and some passive SMT parts on the solder side. We do not have a proper wave soldering machine for doing solder side SMT (double wave
Electronics Forum | Tue Dec 29 17:42:27 EST 1998 | Dave F
| Can anyone recommend a solder stop that can be applied by our PCB supplier. Our current material form Tamura Kaken is causing problems. | | The material should be capable of withstanding 1 Surface mount IR reflow cycle and 1 wave solder cycle. | W
Electronics Forum | Wed Jul 16 06:38:17 EDT 2003 | Wave
We have acquired an UltraPak 600C wave machine and are investigating the possibility of installing a centre support wire conveyor to eliminate the use of pallets. What is involved in this project and how feasible is it? The boards have bottom side SM
Electronics Forum | Tue Jan 16 18:18:46 EST 2007 | greg york
Sorry that answer never really gave you the reason and ways to resolve. Reason - most composite pallets are only good up to 180C so thermal excursions at 250 or even 270c lead free kill them. Try to stay on top of cleaning as well and some pallet mat
Electronics Forum | Mon May 26 07:52:06 EDT 2008 | kenshiikeda
Hi mates, I encounter a problem on PCB after going thru the LeadFree Solder Wave. It shows so much dirt or dross on the PCB surface. I have attached the picture for more details. I have tried to scope out suspected solder dross and oxidedized solde
Electronics Forum | Thu Jan 14 13:25:53 EST 1999 | Chrys
| Hi Folks. Has any Process Engineer here done a complete evaluation or controlled experiment for VOC-FREE Flux? Our goal here at CEBUKid, Inc. is to implement a VOC-FREE process. We have all the necessary (OPTIFLUX) spray equipment, and we're cur
