Electronics Forum | Thu Apr 20 13:55:31 EDT 2006 | cyber_wolf
Here is the problem : We have 2 AP25 printers with dedicated tooling. After we run side one boards through reflow, we get some warpage in our boards occasionally.(Sometimes we get a lot of warp depending on the geometries of the substrate) When the
Electronics Forum | Tue May 02 12:07:26 EDT 2006 | Sheldon Stewart (Process Engineer)
I am curious if everyone else is seeing the same dramatically reduced tip life with lead-free that I am? We have purchased new irones with controlled temperatures up to 800F. We are doing more hand soldering on our lead-free at the present while wait
Electronics Forum | Wed May 03 15:00:44 EDT 2006 | patrickbruneel
It all depends on process, design and environment in which the contacts are used. Both have excellent conductivity characteristics Both don't oxidize over time On the other hand gold is much softer then carbon, and after hitting that contact a gazil
Electronics Forum | Thu May 11 15:11:14 EDT 2006 | patrickbruneel
I assume you talk about wave soldering. No-clean fluxes are widely used since 1987 or earlier and after all these years they have proven to be reliable. If you clean the board or not the dust bunnies etc. will still reach the board surface. If you us
Electronics Forum | Thu May 18 03:36:38 EDT 2006 | Grant
Hi, We are about to change our wave over to lead free solder, and it's a Soltec Deltawave, which uses about 750 KG of solder. Our supplier is recommending we change the bath over, however that seems a bit extreme. They are concerned we won't get ri
Electronics Forum | Sat May 20 09:54:43 EDT 2006 | smartasp
Hi Guys What a wonderfull bunch we are. Overstressed by the senior management at HQ dreaming up some new benchmarks, processes we don't fully understand and to top it up a wife bitching at you for spending to much time with the brand new smt line yo
Electronics Forum | Wed May 31 22:17:24 EDT 2006 | EC
Hi Jack, I do not know what type of machine you are using and how old is your machine. But I have this problem before using Fuji machine. There are few things cause part throw.....placment speed, feeder, pick up tolerance, part dimension tolerance,
Electronics Forum | Mon Jun 19 17:00:39 EDT 2006 | a_laser
The most common rates of in-process cleaning (under wipe) I have encountered are once per 5 to 10 prints. But this depends a on a lot of variables. More often is typically better, but more costly in under-wipe materials. (For some more info see http:
Electronics Forum | Tue Jun 13 04:20:21 EDT 2006 | Grant
Hi, ok, I have a bit more info after playing further with the profiling. We are getting close, but we don't have enough top side heat I think. The IR lamps just don't give enough, but we can get better connector that should help. But we have anoth
Electronics Forum | Thu Jun 15 13:20:12 EDT 2006 | jem
Hello All Has anybody used or know of ROHS compliant marking Ink? In particular the permanent ink (bought in little container and used on the felt stamp pads)that QC inspectors use to stamp off a PCB after inspection. We use a trodat industrial ink
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