Electronics Forum | Mon Aug 04 12:29:12 EDT 2008 | realchunks
If you are getting top side wetting, I doubt if this is a Delta-T problem. It also could be there is a lot of flux on the top side of the board stuck between the connector and the board. This is easily checked by fluxing and not running th eZ axi
Electronics Forum | Mon Aug 24 23:44:08 EDT 2020 | kylehunter
Hey all, We recently purchased a second hand EBSO SPA-400 selective. Other than the normal pain of a used machine, everything seems to run OK. We ran some preliminary tests, with really bad results. There were tons of shorts and icicles. The only noz
Electronics Forum | Tue Aug 25 11:31:41 EDT 2020 | stephendo
yes Once I was using dewers of liquid N2 and recommended switching. I tried using air to the machine so the sensor would let the machine run. Boards went from good to a two inch icicle covering a large area. We went to a wall mounted single stage fi
Electronics Forum | Thu Feb 24 16:08:54 EST 2000 | Gary
I have the situation where we may need to use a variety of reflow temperatures. It seems that the design engineers want us to try a variety of "unspecified" pastes on the products. For example, the first PCB would be assembled using a higher temperat
Electronics Forum | Wed Oct 25 06:14:14 EDT 2000 | Adam
Guys A question regarding design rules of a WSC.We are currently running a high volume product, and as usual the design layout is as such where half the through hole connectors are perpendicular to the wave, and surprise,surpise the other half are'n
Electronics Forum | Thu Feb 24 16:08:54 EST 2000 | Gary
I have the situation where we may need to use a variety of reflow temperatures. It seems that the design engineers want us to try a variety of "unspecified" pastes on the products. For example, the first PCB would be assembled using a higher temperat
Electronics Forum | Thu Jun 22 16:59:18 EDT 2000 | Lee
I'll be real brief, because of time, but feel free to contact me later (lgoldberg@chipcenter.com). There is big conceren (somewhat well-founded but a bit overblown) about lead form electronics products leaching into the environment when they are land
Electronics Forum | Tue Dec 14 11:13:43 EST 1999 | Chris May
Paul, I have (as many have) come across this problem due to misregistration of resist at the PCB fab. You didn't say if these boards are inexpensive double sided or costly multis. I know this shouldn't make a difference on quality but I would tend t
Electronics Forum | Thu Mar 23 00:47:00 EST 2000 | Donnie DeYoung
Mark, If you find out anything please let me know. The only way we do it is by hand using a slotted spoon and dumping the lead and dross into a 3 gallon bucket and having it taken off site and recycled. It's a pain in the neck, and I don't like we
Electronics Forum | Fri Dec 13 16:39:42 EST 2002 | Gris
Hi, Look for papers on SMTA there are a lot of papers on lead free rework. If you dont find any let us know here I am sure you will receive many. Here are a just a few http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22lead+free+rework%22&
