Electronics Forum | Wed May 24 13:10:28 EDT 2006 | Chunks
VIP 98, I believe that's a 7 zone if I can remember 6 years ago. Try 150, 165, 200, 235, 235 and 235 (top and bottom temps) with a belt speed of 35 inches per minute. This should get you in the ball park depending on the size of your board.
Electronics Forum | Fri May 26 10:01:53 EDT 2006 | Chunks
I hope so, my reply wasn't that funny. Although my new process of boards that grow their own parts by exposing them to B.S. has been so successful that we no longer need breakaways. They all totally green since they are organinc as well! P.S. Moo
Electronics Forum | Fri May 26 14:24:30 EDT 2006 | Chunks
Thanks Pete, I wish every video for each piece of I bought went as smooth right after recieving it. That's why I always try and ask current users about things to avoid or options to buy. I'm sure their sales guy will tell me everything (add joke
Electronics Forum | Wed May 24 19:46:32 EDT 2006 | JohnM
So, it looks like the backward compatible of BGA statement is not guarantee for solder joint reliability. It doesn�t matter what temperature and what melting sequence we have in order to avoid the solder void issue. Is Pb diffused homogeneously thr
Electronics Forum | Thu May 25 17:32:36 EDT 2006 | TomL
Log on to Universal's website "uic.com", and register to "MyUniversal". From there you will have access to the GSM Knowledge Database, where you will find best practices guides for running chips, and much more. Bulletins TECH-0138 & TECH-0139 shoul
Electronics Forum | Tue May 30 10:51:09 EDT 2006 | PWH
Thanks - the bladed nozzles work well but I'm still getting used to the best light levels to use on parts and how to get what I want by adjusting light. I think I might get some 08MPF's as they should be a good all around nozzle for smaller parts in
Electronics Forum | Fri May 26 09:59:58 EDT 2006 | smteng0201
We evaluated several "low" cost AOI systems and found that they are not reliable nor repeatable. We have the Mirtec system. It has been a great asset for us. Ask them for some of their references and I'm sure you'll here the same things from their
Electronics Forum | Fri May 26 14:50:20 EDT 2006 | muse95
I believe the initial link is probably what resulted from what is reported here: http://www.electronicsweekly.com/Articles/2006/05/10/38545/EuropeanCommissiontoplugRoHSloophole.htm My summary: There were people who were asked to look at ways to re
Electronics Forum | Thu May 25 18:32:12 EDT 2006 | pms
Having an issue with our paste inspector (human type). Were printing paste on .5mm pitch pads (MLF package). My question is - What is the acceptable print deviation (percentage) off the pad before you see problems after reflow? 0%? 1%? 10%? 25%?
Electronics Forum | Thu May 25 18:41:15 EDT 2006 | russ
How accurate is your placement machine? if it is accurate I would eval up to 25% off pad. the problem I might think you will have is errant paste or balls causing shorts if it doesn't coalesce completely. Bottom line is, if the board is good at th
