Electronics Forum | Wed Mar 12 15:26:46 EDT 2014 | dan_ems
Hello, in my SMT process I have some problems with the solderability (look like dewetting) on a PCB with finish HASL Lead Free with a composition that is melt at 230 degree Celsius. My oven is with vapor phase and the peak temperature is 230 degre
Electronics Forum | Thu Mar 13 14:12:31 EDT 2014 | davef
You're creating a new alloy on the surface of your board. The alloy will have a melting point determined by the constituent metals of the alloy. Your alloy consists of: * Lead-free HASL solderability protection on the board * Lead-free solder paste *
Electronics Forum | Mon Aug 16 20:19:10 EDT 2004 | Grant
Hi, We have both Vapor Phase ASSCON semi auto as well as Soltec convection inline ovens. I must say we had no end of problems with Vapor Phase. We tried everything, and just could not totally eliminate tomb-stoning completely. We would always get a
Electronics Forum | Mon Aug 16 11:58:29 EDT 2004 | Dreamsniper
I've worked with a Vapor Phase Oven a semi-automatic and a manual oven for evaluation. They worked fine and produce better grain of solder joints. The fluid that you need depends on the solder temperature that you require. I've used a 200'C fluid for
Electronics Forum | Mon Aug 16 12:23:17 EDT 2004 | soease
Thanx a lot for advice... My only question is: did you had troubles with prehaeating of the boards? I heard it was the only critical point due to chosen technology, infrared preheat (if it's still IR). I allready checked Vitronics Soltec and IBL,
Electronics Forum | Sat Mar 06 21:24:31 EST 2004 | Bryan
Hi, everyone knows that we will soon phase into Lead free process.would it neccessary to waste so much money for such a lead content monitor? Bryan
Electronics Forum | Sat Mar 06 22:26:34 EST 2004 | Ken
I think it is a good idea to "waste" money on this analysis. Especially if you phase in a SAC wave alloy. Silver is not toxicity free....and lead free waves can dross 3 to 5 times faster than SnPb alloys. This produces a greater potential for airb
Electronics Forum | Thu Dec 22 15:36:03 EST 2005 | CC
In general two step temperature reflow process requires minimum 40 deg C delta to be sucessful. We are not using vapor phase soldering but we have similar situation when we change to SAC lead free solder for PCB component population and secondary swe
Electronics Forum | Tue Jan 30 08:51:44 EST 2007 | Machinebuilder
I am in the mid-Atlantic US. I need to solder PCB's to a large copper heatsink. Does anyone know of local (or not so local) ECM's with vapor phase capabilities? How about induction? Thanks!
Electronics Forum | Tue Jan 30 12:41:36 EST 2007 | john_smith
Machinebuilder, We have Vapor phase ovens in our facility. We are located in OHIO. Let me know if you need more information. Thanks John