Electronics Forum | Fri Apr 10 05:52:45 EDT 1998 | raymond
| | Does anyone has any experience using the Prophet Thermal Manager by KIC Thermal Profiling for real time monitoring and control of reflow oven profile ? | Yes. What is your concern. | Earl Moon I would like to find out how accurate is the device
Electronics Forum | Wed Aug 24 08:51:45 EDT 2005 | james
We do have a slimkic and I will be profiling a board asap. Yes I am looking for a quick answer and I know profiling takes some time. It is just hard to get the M. E. to understand what I want. We just never had a cooldown as part of our profile.
Electronics Forum | Tue Nov 21 11:59:43 EST 2006 | billwestiet
These machines are very different. It falls under "there are no two machines alike" category. When you say the same profile, do you mean the same setpoints, or the same actual board profile that you get from running a profiler with TC's on the boar
Electronics Forum | Mon Aug 25 17:39:45 EDT 2008 | gdzuber
Hello, Maybe you can get closer to a solution by posting a profile. Your problem points are right where your photos show them. So, do a profile at the same points. Also, contact your flux provider and request a recommended profile using their flu
Electronics Forum | Tue May 14 20:58:42 EDT 2002 | davef
Maybe the issue is not a proper rework method. Your shorts on the corners are caused by too fast of a profile causing the corners of the BGA to get too hot, too fast, which made them curl, like tatter chips.
Electronics Forum | Wed May 29 14:24:51 EDT 2002 | caldon
Stick with round aperatures they work fine. If you are successfully processing fine pitch QFP's then switching to BGA's should be no problem. Profiling is a little tricky, a thermal couple should be mounted at the under/ center of the component. cal
Electronics Forum | Fri Jun 14 02:13:11 EDT 2002 | john_wsme
Ross, Thanks for your advice. I will take a look at FAB warp and check the pad size. If you also have any suggestions on rework BGA profile, please share some information which is a great help for us. The best regards, John Need help from everybod
Electronics Forum | Fri Jun 14 14:29:22 EDT 2002 | davef
Russ makes good points. Search the archives for: * Links to rework machine profiles. * Discussion on people causing corner shorts on their BGA, when heating them too rapidly, making the corners to curl like potato [potatoe?] chips.
Electronics Forum | Wed Oct 09 17:44:46 EDT 2002 | alj
I guess you don't use one. Call them and I'm sure they will solve your problems and teach you a little bit about BGA rework profiling... CHEERS!
Electronics Forum | Fri Aug 22 09:50:20 EDT 2003 | Mike Snider
I am placing a plastic Cypress, 256 pin BGA on a small assembly, and I cannot stop the corners from bowing. I've moved my profile up and down with no results. Any suggestions?
