Electronics Forum | Fri May 25 09:50:23 EDT 2007 | ck_the_flip
Grant, the BGA Kid's got a great point. You state, simply that you're looking to completely replace wave soldering with selective soldering, but the only reason given was "the wave is old". The throughput differences will be huge if you're solderin
Electronics Forum | Tue May 22 06:28:50 EDT 2007 | aj
Hi All, I ran a prototype last week with one of the above mentioned connectors on board. During Inspection post reflow we noticed a solder ball had formed at the top of each leg. We used a 5thou stencil with 10% reduction on the width but it seems
Electronics Forum | Tue May 22 10:05:10 EDT 2007 | aj
Hi All, I acquired an AMP Semi-Automatic Press for backplane connectors and the like a while back , unfortunately without the Manual. Its part # is G776272. ( pneumatic). Does anyone out there know where I can get one ? I will try and contact th
Electronics Forum | Tue May 22 12:27:04 EDT 2007 | cyber_wolf
I would consider calling Kester and telling them they need to send their people out. I could not really see mesh size being an issue on anything 20mil and above. There are several other issues that can cause aperture clogging as well...: Incorrect
Electronics Forum | Tue May 22 16:07:31 EDT 2007 | francitj
We are doing a field study to test the placement accuracy and calculate cpk of some machines in our plant. From previous readings, it is suggested that you buy glass board kits from Accuspec, Topline, etc. Is that the easiest/cheapest way to go abo
Electronics Forum | Thu May 24 12:50:39 EDT 2007 | adlsmt
I thought they still were, my mistake. I did contact them. They said since the computer (hardware) is obsolete they no longer support it. They are willing to bring the whole system up to the latest hardware for $23K (new servo's and everything) which
Electronics Forum | Thu May 24 02:09:29 EDT 2007 | einat
I would like to learn more about the differences between the two. Which one do you recommend more and why? Also if someone can stand on the differences between: MPM UP 3000 HI E MPM UP 3000 MPM UP 2000 HI E MPM UP 2000 Any information would help!
Electronics Forum | Thu May 24 14:44:42 EDT 2007 | colormaker
We use a washer soluable solder flux for our solder wave. We then wash the boards in a dishwasher. We have done it this way for years without problems. We just got a new dishwasher and now we get residue on the solder (white marks) Anyone know of wh
Electronics Forum | Thu May 24 22:33:07 EDT 2007 | slthomas
By purchasing or leasing a DI system and supplying it for your final rinse, at least. You'll avoid some troublesome ionics on your boards that way. Kind of off topic, but are you filtering or boiling off your washer's waste water or are you sending
Electronics Forum | Thu May 24 22:56:42 EDT 2007 | davef
We'd guess that your white residue on the solder is from minerals in the supply water. We expect the levels of these minerals that you see: * Vary depending on the season. Check with your public water authority for anaylsis. [Recognize that this ma
