Electronics Forum | Sat Oct 27 12:52:58 EDT 2007 | gregcr
We do very little wave soldering, maybe once a week. We have been running a Novastar Spartan 8S for years with very good results. I do wish we had the wider 12S for the wider boards, but it has only come up once in 7 years. I think there is a lot
Electronics Forum | Tue Jan 08 10:10:29 EST 2008 | noid
We are building class 3 products, using no clean on wave and selective solder machines. Both processes are producing micro solder balls between the leads of through hole components. I have searched the site and haven't found any recent threads on h
Electronics Forum | Mon Mar 03 23:24:06 EST 2008 | Mag10
I have a project to evaluate solderability of various metals or plated finish. I'd like to tap in to get some advise. The project is to evaluate solderability of various metals or plated finishes for RF shield application with reflow. Due to the hig
Electronics Forum | Sun May 25 10:30:31 EDT 2008 | necdetozyonum
Dear All, I would like to take your opinion about the result that we have faced after cleaning the PC assemblies in a cleaning machine (Miele Dishwasher) with the cleaning detergent Qualitek Everkleen 1005. We use DI water for cleaning purpose in t
Electronics Forum | Tue Jul 29 12:51:40 EDT 2008 | grics
I am having some problems with some of my pcbs at ive solder. We are using an ersa versaflow. It has an automated spot/spray fluxer (Interflux Pacific 2009M) , 1 preheat stage, a leaded pot/nozzel, and finally a lead-free pot/nozzel. Nozzels move, b
Electronics Forum | Thu Aug 28 07:32:06 EDT 2008 | realchunks
I've been there. Soldering no lead parts in a leaded world can be difficult. Sounds like you are not wetting to your parts becasue you ar enot getting hot enough. Here's the trick - you can turn up your profile to look like a no-lead profile, and
Electronics Forum | Sat Nov 08 09:10:16 EST 2008 | davef
SN100 was designed for selective soldering and producing low levels of voiding. But thin barrel plating is a common cause of voids in wave and selective soldered connections, as you say. As a result, you checked the plating thickness and it was accep
Electronics Forum | Fri Oct 02 11:23:08 EDT 2009 | floydf
Does anyone out there have experience soldering > with Pb solder (Sn 63 or Sn 62) to SAC 305 coated > PCB lands (about 50um) or Sn-Cu plated lands > (about 10um). I know soldering Pb free (Sac based > soler) to Pb/Sn coated lands is a no-no, but
Electronics Forum | Tue Jul 06 09:35:45 EDT 2010 | rgduval
Sean, We can't comment on the EDX report; but, we have seen these types of problems before. We would initially agree with you that it seems like a material issue. A solderability test should be performed on the part, and on the board. Easist way
Electronics Forum | Thu Aug 19 05:19:31 EDT 2010 | grahamcooper22
I have seen that moisture in pcbs will cause mid chip solder balls. To discount this, take one pcb from a batch that is giving you solder balls and pass it through you reflow oven with no paste or components on (bare pcb)using your normal reflow prof
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