Electronics Forum | Thu Jul 18 12:33:21 EDT 2002 | slthomas
Not sure if you're trying to improve your defect rate (we use dpmo) or your test yield. The question is what do you do if you're happy with your dpmo levels but not some of your first pass yield numbers because certain boards have more parts. Inspe
Electronics Forum | Thu Jul 18 15:21:32 EDT 2002 | gdstanton
Steve, Seriously we really do that much. Don't know much about your stuff but our designs typically have as much as five 144 pin QFPs on each CCA. Boards are small and double sided with BGA and uBGA. We build some high reliability space stuff and w
Electronics Forum | Thu Jul 18 12:17:30 EDT 2002 | pjc
Machine efficiency is a big one. Placement and auto-insertion machines should have the production rate for a given product recorded in the Routing, Time Standard or Work Instruction. If a given board has a tact time of say 1 minute and you ran 1,000
Electronics Forum | Thu Jul 18 12:05:19 EDT 2002 | yngwie
Experts, Today I received PCB in a punctured vacuum seal bag. the Humidity indicator change the colour to pink at 60%RH mark. The brd finish is Entek. Earlier our intention to get the board vacuum seal is because we want to ensure that the is no fr
Electronics Forum | Thu Jul 18 21:00:57 EDT 2002 | davef
Platitudes about soldering are: * People ARE NOT good at soldering. * Machines ARE good at soldering. You can purchase a good used wave soldering machine for $20k. * Training helps people to be better at soldering. * Your solder connections should
Electronics Forum | Fri Jul 19 21:19:25 EDT 2002 | yngwie
Hi, I know this is a total screwed-up. Operator used the wrong paste. It was supposed to be a clean paste but she was issued with no clean paste. What happen was when the brd processed thru', after the reflow, the girl passed the boards thru' DI wa
Electronics Forum | Fri Jul 19 22:32:59 EDT 2002 | lysik
I am the first to bitch about OEM's. So I will tell you this. I ordered a part from Universal instruments that was made in 1979. They were happy to tell me it was in stock and they would ship it over night. That is the BALLS. not only did they have i
Electronics Forum | Mon Jul 22 00:08:30 EDT 2002 | lysik
I promise I am not a sponser. If you look back I have told it like it is. I have put Universal, MyData, Panasonic etc. etc. On the spot I will do so in the future. I really slam them when they do wrong. So. I want to praise them when they do well. It
Electronics Forum | Mon Jul 22 00:21:43 EDT 2002 | lysik
If a OEM does the wrong thing tell the World. Tell every single person you know. But also do the right thing by them when they do the right thing. Tell the World. If it's right it's right. UIC seems to be doing the right thing right now. Their regist
Electronics Forum | Mon Jul 22 11:10:05 EDT 2002 | cyber_wolf
Does anyone have any recommendations on how to track feeder maintenance on fuji CP feeders in a contract shop ? We are constantly setting up and tearing down feeders. Some feeders may be getting picked out of way more than others. How does one keep f
