Electronics Forum | Wed Feb 04 09:58:50 EST 2009 | dyoungquist
As was stated before, you need to have oven temperatures (profile) set such that you get good solder joints with the paste you are using. And definately run a profiler through yor oven to verify it is working properly. As for components, most data
Electronics Forum | Tue Feb 09 23:40:19 EST 2010 | glennster
OK Sergey, looks like no one wants to take this on. I will give it a shot and maybe others will add their 2 cents. The answer depends on what you want to inspect. X-ray inspection is based on the X-ray absorption properties of the materials in th
Electronics Forum | Mon Dec 17 11:20:12 EST 2001 | slthomas
Well, I was able to convince them we had a serious problem on the poorly reflowed boards without spending 2k on off- site analysis. Now all we have to do is sort out the ones that flowed well but had solder balls (looks like a damaged stencil prob
Electronics Forum | Wed May 11 19:34:42 EDT 2005 | Tom B
You may want to check out Nihon Superior. Nihon licensed their Alloy to Aim for US production Late last month! The alloy uses nickel and the solder joints look amazing for "lead-free" they rival tin-lead in appearance. Other boasts is that you can
Electronics Forum | Thu May 20 07:52:36 EDT 2010 | rgduval
In general, cleaning with deionized water is acceptable for most component. Open switches and contacts, in general, do not get damaged in this process. A good drying is required, of course, after washing. However, you've described dewetting issues
Electronics Forum | Thu Nov 12 03:58:10 EST 1998 | Earl Moon
| What are the factors that go into determining PCB Board temperature requirements for the Wavesolder process? Most of the recipes I've seen call for preheating the PCB to around 230F - 250F. This temp is about 210F - 230F below the typical solder te
Electronics Forum | Tue Dec 28 21:02:15 EST 1999 | Jim
Hi Rick, Water soluble flux is heatee, deionized water. So, use DI, and keep it heated. It is also important that the water be moving, so that fresh water is continually being presented to the fluxed surfaces, and the flux-laden water is continually
Electronics Forum | Fri Nov 08 11:37:44 EST 2002 | jonfox
1. Back in the early days of consumer digital cell phones, we ran into the same problem. PCB with 2000 parts in a 5"x2" area, and double sided. We ended up using our standard vacuum tooling for the NIC side and stiff ESD safe foam for the NAC side
Electronics Forum | Wed Feb 23 20:25:17 EST 2000 | Chris Wallace
Like all who post messages here, I'm looking for a little bit (well, maybe a lot of bit) of help. We're currently going through a redesign of a board which will utilize several FPGAs. The manufacturer (Xilinx) recommends using solder mask defined p
Electronics Forum | Wed Feb 23 20:25:17 EST 2000 | Chris Wallace
Like all who post messages here, I'm looking for a little bit (well, maybe a lot of bit) of help. We're currently going through a redesign of a board which will utilize several FPGAs. The manufacturer (Xilinx) recommends using solder mask defined p
