Electronics Forum | Thu May 23 03:10:43 EDT 2002 | ianchan
Hi mates, need your advise here. we have solderballs on a model due to neglect by stubborn folks to follow issued process control instructions. the post-reflow PCBA has solderballs stuck in the NC flux residue and is not in compliance to IPC-A-610
Electronics Forum | Thu May 23 11:23:47 EDT 2002 | yngwie
Hi guys... Has anybody hv an experience with using a common or standard profile to reflow high mix brd ( say, low, medium and high )?. The reason for asking is that, we are running high mix low volume, and materials that were consigned is exactly as
Electronics Forum | Thu May 23 13:00:51 EDT 2002 | cyber_wolf
One more thing I want to add. Don't turn this into some big deal. Its not atom splitting, or black majic.Bottom line is that you are going to be doing some experiments to prove it to yourself and whomever else requires the data. Profiling is time con
Electronics Forum | Mon May 27 11:57:37 EDT 2002 | arcandspark
One thing you should do is characterize your reflow oven, run profile boards of various densities, say 2 gm/sq.in. to 10 gm/sq.in. Adjust the oven settings for these various boards to acheive your standard profile based on your solder paste manufactu
Electronics Forum | Mon May 27 18:51:17 EDT 2002 | harotec
Hi Yngwie Have you got a reflow oven yet. If not, forget about complicated profiling with test runs or reflow trackers. We've got a nice oven with integrated temperature-feedback system. You build any profile you want and the oven will adjust its hea
Electronics Forum | Tue May 28 00:06:08 EDT 2002 | caldon
IMO: Sanyo and Universal? maybe, maybe not would not make sense currently. UIC production is on a "reduced" schedule. To be introducing a new machine in manufacturing in these time would not be wise but who knows crazier things have happened. Conce
Electronics Forum | Fri May 31 17:52:49 EDT 2002 | fastek
I'm seeing a definate pick up of activity levels in my business. Equipment is finally selling albeit at depressed prices. Unlike last year however when things were not selling AT ANY price. At least there are buyers now. The huge CM's will take a l
Electronics Forum | Sun Jun 02 02:46:27 EDT 2002 | mjabure
Just a couple of points in response. For the most part I agree with your point on technology transfer, unfortunately the US has been doing this for years. As for who would want these older machines and how could you make a profit off of them. There
Electronics Forum | Sun Jun 02 23:20:39 EDT 2002 | fastek
China is way behind the technology curve and will be for some time. They're still soaking up all of the through hole and 10 year old chipshooters they can get their hands on. China is the latest flavor of the month for cheap labor just like Mexico wa
Electronics Forum | Tue May 28 09:27:04 EDT 2002 | pjc
Does this PBGA have eutectic balls? If so and the PCB is HASL finish, or has solder on the lands from BGA removal, you may not have to apply solderpaste. Check with you flux supplier to see if they offer a NC "flux paste" product, otherwise I know Mu
