Electronics Forum | Fri May 26 14:15:16 EDT 2006 | patrickbruneel
Its it possible to post a picture from right after reflow? To see what we start with and compare the difference after 5 years. The grainy structure is not as much a concern as the growth-like appearance on the boundary of the solder. What paste al
Electronics Forum | Thu Jun 01 04:51:21 EDT 2006 | EC
Hi TS, Most of the machines will face this problem after been using few years.....I handling SMT equipments ( Fuji machine ) and process.....sorry if I have offened you...... Hi Jack, Firstly, you must able to tell which component having a high thr
Electronics Forum | Thu Jun 01 07:40:23 EDT 2006 | netellink
I have a Suzuki vision machine with 4 heads (SMT-1000VL). This machine is using the camera to inspect the nozzels (4 sets) in the nozzel tray changer every time it is going to change the nozzel(s) in the 4 heads. The problem I have is now the machine
Electronics Forum | Mon Jun 05 14:35:17 EDT 2006 | marc
Yes.... stop checking on your process.... :) Seriously...if you cleaning the boards after I would suspect no issues. If your leaving the flux on the board (I suspect they are using quite a bit) then I would be concerned. Since the boards have al
Electronics Forum | Thu Jun 08 17:13:41 EDT 2006 | davef
We don't agree that "a little to the top would just even things out". The raw flux on the top of the board never touches the wave and so, does not receive the proper amount of heat for activation, except at the through hole barrels. * We assume WML
Electronics Forum | Tue Jun 27 01:41:42 EDT 2006 | grantp
Hi, How come so many good threads get off track because of this Guru fool. To get back on track, we have been running SN100C in our pot for a few weeks now, and it's incredible, and working really well. Glad I listened to the advise of people on th
Electronics Forum | Fri Jun 09 15:41:59 EDT 2006 | shawnvike
That is the problem I am having! Except with 3 separate manufacturers. To answer some of the other questions... Baking - diligence Stencil - as far as we can tell it is good Placement is good We are using Pb-free parts and solder, but I have see
Electronics Forum | Mon Jun 12 19:33:12 EDT 2006 | grantp
Hi, Thanks, and we are doing that today. After spending the day playing with all the usual things that used to work, we are focusing today on profiling and data to get things right. The only worry I have is did we get a wave that can handle this, a
Electronics Forum | Mon Jun 12 17:32:17 EDT 2006 | flipit
Hi, A little off subject but I just finished a quick little experiment where I placed 0201 to 1206 and some ceramic resonators at specific distances off the scored edge. The distances from scored edge ranged from 0.025" on up at 0.025" increments.
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
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