Electronics Forum | Thu Jan 11 22:01:09 EST 2007 | davef
Joe: I know this is not the correct forum to post chip "reworking" questions. Reply: Rework questions are as appropriate as the next topic here on SMTnet J: BGA will not reflow at any normal temperature level. I believe these chips may have been gen
Electronics Forum | Sun Jan 14 12:42:35 EST 2007 | SMTRework
I think the main cause of this condition is #3 because both #1 and #2 never change from board to board, these are identical boards with identical BGA revisions. These BGA's (as stated before) are about 3 years old.. I don't believe they are lead free
Electronics Forum | Thu Jan 11 16:01:52 EST 2007 | russ
You using lead free BGAS now? What is your rework equipment and process? I am sure we can help you out here with some more detail, you should get the package data sheets for your problem BGAs and determine ball alloy or they may even be CCGA packag
Electronics Forum | Sun Jan 14 12:48:53 EST 2007 | SMTRework
Also, I was beginning to think that the humidity level in the facility was a factor.. but I don't believe that's the case.. as this condition seems to occur regardless of the humidity level.. Equipment being used is as follows.. Metcal BGA 3500
Electronics Forum | Tue Jan 13 02:43:48 EST 2004 | Bryan
Hello all, As everyone knows,for all kinds of reasons we must change the reflow oven from 8 zone to 12 zone,but how?perhaps the easiest way is to buy a new 12 zone oven...however what will you do then with the old 8 zone oven,scrape? is there anyone
Electronics Forum | Wed Jan 14 03:45:45 EST 2004 | Bryan
Whether could we add some heating or cooling modules to the 8 zone reflow oven and convert the 8 zone to 12 zone or more?I 've never heard of anybody successfully done this.I think, this way, we could get more cost down.What's your opinions? Thanks®a
Electronics Forum | Tue Jan 27 07:20:14 EST 2004 | Rob O
I've never heard of anyone doing this. Even if it were possible I can't believe it would be cost effective. If you absolutely need a 12 zone oven your best bet is to try and be a used/refurbed one if you can't afford a new one.
Electronics Forum | Wed Jan 14 08:03:50 EST 2004 | davef
Never heard of anyone doing this. What do the folk at Heller say? Heller Industries 4 Vreeland Road Florham Park, NJ 07932 Work: 973-377-6800 Fax: 973-377-3862 Other: www.hellerindustries.com Marc Peo at Heller is a frequent contributor here on S
Electronics Forum | Tue Jan 13 21:00:15 EST 2004 | davef
This sounds like something the saleman of your new Vitronics oven should be happy to help you sort through. ECD [and probably other profiler supplers] provide software for playing with [optimizing?] recipes. In it, they allow you to select from a v
Electronics Forum | Fri Sep 22 12:37:18 EDT 2000 | jonyoder
I am having problems with SMT electrolytic capacitors expanding and changing values after going through our reflow. The reflow profile we use includes temperatures of 200 deg C for 60 seconds and 230 deg C for 30 seconds. We need to use this profil
