Electronics Forum | Mon Feb 25 11:12:32 EST 2008 | hegemon
It sounds more as though you have a profiling problem primarily, however, if your placement is not square to the board, then you should get your machine setup correct first. After that you can get to the profiling. If the BGA is brought up to tempe
Electronics Forum | Mon May 31 15:09:56 EDT 1999 | JohnW
I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processi
Electronics Forum | Mon May 31 15:10:14 EDT 1999 | JohnW
I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processi
Electronics Forum | Tue Sep 26 14:06:33 EDT 2006 | patrickbruneel
Jun 26, 2006 (See Comments Below) Editorial Managing the Naughty Child Mike Martel, Editor, Circuitnet I've been listening to voices on both sides of the RoHS issue and the more I hear, the more foreboding the tone becomes. Despite what some wr
Electronics Forum | Fri Oct 14 09:58:13 EDT 2005 | patrickbruneel
Here's what I believe is happening. The main difference between the HASL boards and the gold plated boards is that HASL boards are pre-soldered. HASL boards need very little flux activity to get good hole fill and the machine settings have a wide pro
Electronics Forum | Wed Mar 20 12:59:10 EDT 2013 | kmots15
We had this issue with a few parts on our universal 8mm feeders. The set up was correct all mechanisms were working, even tried a new feeder. The spring in between the take up wheel and pick point just wasnt cutting it since the adheasion was too m
Electronics Forum | Tue Apr 27 16:21:09 EDT 1999 | Chrys Shea
Another basic soldering question. I notice that lead-free solders have become required for plumbing applications due to legislation. In a local hardware store, I noticed the existence of lead-free solders (based upon tin-copper I think) with a me
Electronics Forum | Tue Dec 23 10:31:46 EST 2014 | jimpat
Sounds like your volumes are pretty low. Pick and Place is the bottleneck in the assembly line. Consider an oven that can keep up with the throughput of your P&P. "The best" is determined on individual cases for a specific application and enviro
Electronics Forum | Wed Feb 21 21:21:10 EST 2001 | davef
Gary: It doesn't matter what you use to cure your glue. SMA adhesives are thermosets. This means they become hard on cure and this is not reversible. A couple of things go on with SMA adhesives when you heat them. * Their rheology is temperature
Electronics Forum | Wed Aug 18 00:41:15 EDT 2004 | Grant
Hi, We have the Soltec Delta C. It works well, and is very stable. I think the software is a bit simplistic, but it keeps the wave stable, so that's the main thing. It's the timer on the software that I find annoying. It has a warm up time, and yo
