Electronics Forum | Wed May 24 16:40:40 EDT 2006 | samir
Yikes! Sounds like a hairy situation there. I've successfully collapsed a Pb-Free BGA (using a Sn/Pb solder paste), with a peak temperature of 220 Deg. C and Time Above SAC's Eutetic point (217) of 17 seconds. Beware of overcooking your smaller ma
Electronics Forum | Mon May 29 12:09:16 EDT 2006 | jbrower
Goll dang Guru, I didn't win any money off of you yet but keep up the good work! I didn't know you were pushing a process that converts coal into carbon monoxide and hydrogen! Amazing! Keep up with your seven dollar words. You are a funny guy! By t
Electronics Forum | Wed Jun 07 22:07:47 EDT 2006 | Wave Master Larry
Listen Samir, we some times spray the tops of our baords at wave to achieve top side wetting. Not sure if the engineers aren't setting up the wave right or not, but it gets the jwob done. We don't see any fall out from this and have been doing it f
Electronics Forum | Thu Jun 15 04:12:12 EDT 2006 | Rob
I agree with Dave, we looked at it, but they can go walkies, and also people tread on them, drop things on them, mess with the programs etc. We (the IT dept, not me)ended up writing a Visual basic program & put a PC at every inspection station, li
Electronics Forum | Mon Jun 26 09:46:29 EDT 2006 | jem
My company also uses the TM8C (all feeders) with the same problem as Paul. The 0402's do exactly the same as he desribes.The SMT operators are correcting the placement data all the time when using 0402 but to no avail. Chris What do you mean by the
Electronics Forum | Mon Jul 10 04:16:03 EDT 2006 | dougs
Hi, We have a new product coming soon that has a fair number of PTH sockets and headers. I was thinking that it would be good to use intrusive reflow on some of them to even up cycle times between SMT and hand insertion, however, when i called t
Electronics Forum | Mon Jul 17 16:38:41 EDT 2006 | dave
Guys, My problem is that I have a 10 up panel and I have to use a selective pallet to run it thru the wave process due to SMT on bottomside. However the yields are very poor. We have done everything to improve them with some good improvements along
Electronics Forum | Fri Jul 28 19:55:31 EDT 2006 | scott
I would agree for a bare board house, are you NUTS? Look what happend to McCurdey's high tech line in S. Cal., go chewed up and spit out by China... Plating, etching, environmental issues, regulations, lack of people who like doing that work... endle
Electronics Forum | Fri Aug 11 12:45:10 EDT 2006 | mpm fan
It's been awhile but isn't there a sensor to tell the middle conveyor when it is lined up with the incoming and outgoing rails? If so that would explain why the table goes into Z axis overtravel. It still means your Y isn't working but makes it less
Electronics Forum | Mon Aug 14 11:30:25 EDT 2006 | SWAG
We had centernest to I/O track alignment problems that were not predictable on 3000. Z-axis height seemed good with relation to I/O tracks but y was misaligned. Ended up replacing y-axis stepper and trouble went away. Also have had trouble with z-
