Electronics Forum | Wed Jun 30 00:20:08 EDT 2010 | leadthree
Thanks for your reply. This production lot is already finished. We produced in 2 lots, first was no-clean (and was ok), 2nd lot was cleaned (aqua based), and I need to look into the cleaning further. Since it's all finished I can't get parts from se
Electronics Forum | Fri Jul 09 18:48:55 EDT 2010 | rway
I hope I understand your question, but are you saying you're having trouble meeting demand? Keep a log of the time that the machines are down, probably for 4-6 weeks would be good and this may give you a good idea of what kind of downtime your worki
Electronics Forum | Wed Jul 14 15:36:34 EDT 2010 | remullis
98% to 99% pass yield should be your target. The previous company I worked for, we were able to meet these goals with most all of our products. It took us some years to achieve this level of pass rate. Of course analyzing and good reporting from some
Electronics Forum | Thu Sep 30 01:13:58 EDT 2010 | Shean Dalton
Likely, but if your dross production is mostly due to pumping a high wave, or, due to a system that is configured to produce a lot of dross from the solder wave return to the pot, pump shaft interface or an aggressive chip wave, then maybe wax will n
Electronics Forum | Wed Sep 29 11:32:02 EDT 2010 | asksmt
Hi, i have designed Double sided PCB all SMT Parts are mounted on bottom side and TH on Top Side. with recent testing we found that the decap needs to be placed closer to IC VDD-GND Pins. as i can't place TH Parts since i don;t have space on botto
Electronics Forum | Tue Oct 12 09:52:18 EDT 2010 | dyoungquist
Obviously a totally clean floor is the best. So what if you have 1 particle of dust on your entire production floor? Is that 1 part per million (1 PPM)? or is that 1 part per billion? or 1 part per ???? How do you measure dust and come up with a
Electronics Forum | Thu Oct 21 10:50:27 EDT 2010 | methos1979
I had a benchtop Yestech demo until for a couple weeks. It was a very good machine. I particularly liked the RGB light system which gave a good visual representation of solder fillets. There was software that allowed you to evaluate based on the p
Electronics Forum | Thu Oct 21 12:44:07 EDT 2010 | swag
We issue extra parts like this: 8/2 caps and resis. - 40 over 8/4 caps and resis. - 20 over 8/4 IC's - 7 over 12mm - 7 over larger feeders + stick + matrix = the correct # req'd. These #'s were based on our first SMT lines (used equip.) and we made
Electronics Forum | Fri Oct 22 18:57:25 EDT 2010 | jry74
I am having a horrible time with the square radial lead capacitors (thru hole components) and the part coating flowing into the solder joint. These are Class 3 products. When we run them through the wave solder machine, the solder travels up the le
Electronics Forum | Thu Nov 04 04:27:46 EDT 2010 | d0min0
thanks for all the feedback... we also checked, just in case : - bake the components (no visible improvement) - bake the pcb (50% less tombstone components) - finally we changed LF paste to completely different manufacturer - and booom 0 (zero) tombs
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