Electronics Forum | Thu Jun 01 09:31:26 EDT 2006 | marc
All data loggers will be warmer at the higher lead free temps. Only two ways around this... better thermal barriers or fans after the profile to cool it down. Some places do not allow fans on the production floor due to static electricity, in that
Electronics Forum | Tue Jun 13 16:45:30 EDT 2006 | adlsmt
If the only difference is the layer count, check the profile as stated above. If you dont have a profiler you can probably get the local Kic or Mole rep to do a demo on that board. I believe I was the one who stated in an old post that prying the lea
Electronics Forum | Thu Jun 15 05:48:20 EDT 2006 | greg_diaz
Your concern should be do you have a glue process that can keep up with the FCP6. We ran a GL541 in line with a CP643 which the glue machine was actually a bottle neck because if you run SOIC's which require more glue dots then it will slowdown the
Electronics Forum | Fri Jun 16 18:52:03 EDT 2006 | grantp
Hi, Reliability was what I was worried about. We have not shipped these yet, as we are not sure about reliability. We can ship them in regions outside of the EU anytime so we are ok on that, and because of supply chain delays, we are already shippi
Electronics Forum | Mon Jun 19 05:11:08 EDT 2006 | WEEEsted
Hi, In our setup what we usually avoid is to use RoHS BGA on Pb process. But we use sometimes Pb transistor(4~6pins) on RoHS process, no BGA yet have been reported. Its really difficult to say about reability unless you start running some functional
Electronics Forum | Tue Jun 20 22:52:10 EDT 2006 | davef
We all know those academic 'reliability studies' are very focused and only give a snapshot of real life. The real reliability studies of leadfree are starting as we scramble to meet our numbers. We have no idea about your customers' expectations ab
Electronics Forum | Wed Jun 21 03:45:53 EDT 2006 | emeto
Hello SMT netters, Can anyone help me with AOI algorythms. I have to find out the differences between algorythms for recognition(black and white, grayscale, matching, golden board.....). I know all of you are using different type of AOI machines. C
Electronics Forum | Thu Jun 22 11:50:21 EDT 2006 | dougs
I wouldn't worry too much about the pixel comparison machines taking too long to program, it takes ages at first but once you've done a few programs you start to build a library of components. yes you may still have to slightly adjust these as you go
Electronics Forum | Fri Jun 23 10:10:15 EDT 2006 | Gman
Some amount of voiding was always seen on sites where solder paste is printed. These voids are much smaller. However the site where a flip chip is flux dipped has never had problems with voiding. Macro voids (and huge ones at that)across the board s
Electronics Forum | Mon Jun 26 23:33:20 EDT 2006 | KEN
We saw this condition over 3 years ago. It sometimes is called "champagne bubbles". The intemetalic formation is interrupted due to the micro voiding reducing mechanical strength. I discovered this on lead free test vehicles for a major computer
