Electronics Forum | Mon Jul 12 05:03:30 EDT 2004 | itamar
hello ! my name is itamar and i need information about pcb laser marking machines. my knowledge in this field is limited and i would be grateful to know the important parameters that one should check before buying such a machine. i got several propos
Electronics Forum | Mon Jul 12 14:00:37 EDT 2004 | blnorman
We've been using lasers to mark barcodes on our boards for some time now. We use a CO2 laser to burn through the solder mask on most of our boards. The machine is enclosed so the operators aren't exposed to the laser. The laser is also mounted on
Electronics Forum | Fri Jul 16 11:13:46 EDT 2004 | Inspection Solution
Hi John, If you have any questions on any of the CyberOptics equipment, please feel free to contact http://www.lvtechnologies.com. There is no charge for helping answer any questions. Full service, sales (parts and equipment) and support is also a
Electronics Forum | Wed Jul 14 17:24:07 EDT 2004 | Frank
Thanks Daan, I forgot about SMT Maestro, but it does a little more than I need. I can easily format that CAD file and the BOM file to match whatever the application requires. That's the easy part. I was looking for a simple tool that I would say
Electronics Forum | Thu Jul 15 12:02:38 EDT 2004 | Yngwie
We have massive void problems on one of the BGA populated on the bottom side of the board. The board have 6 BGAs on the top and 1 on the bottom. No voids were observed during the first reflow (we reflowed bottom side first), but after the second refl
Electronics Forum | Thu Jul 15 22:03:07 EDT 2004 | KEN
In no particular order: Will the failed joints wet when touched with an iron + flux? Is there flux surrounding the joint (post reflow). If no, you may be baking it out premateurely. Is this assembly wave soldered? Where is defect discovered in yo
Electronics Forum | Mon Jul 19 19:39:06 EDT 2004 | KEN
I once had a forced convection oven (insert brand here)...and the top 220VAC heater (reflow zone) had shorted to the frame ground, blowing the branch line fuses. THe machine had no idea the heater was out because the lower heater was heating the upp
Electronics Forum | Tue Jul 27 11:32:20 EDT 2004 | dwanzek
Thanks for the input guys. One problem with this theory, we see the same failure using Omni 5000 solder paste. We also see this problem across 4 production lines, suggesting it is not oven related. The profile meets recomendations and we have tried
Electronics Forum | Sun Jul 18 14:01:25 EDT 2004 | KEN
Unfortunately, smt machines are not like TH sequencers. But, that is in their favor. Multiple reels, multiple part types, many positions = very flexible. Offline setup is paramount to line utilization. Remember, you only make money when the machi
Electronics Forum | Mon Jul 19 09:05:56 EDT 2004 | Stockley
Chris, it was cunning of you to think of this sequencing solution, but speaking from my lofty position of King of the Workaround, I can only suggest this - forget it. Sorry to be blunt about it but you've said that your operators aren't motivated, al
