Electronics Forum | Fri Aug 20 09:40:56 EDT 2010 | namruht
kpm, We were afraid of that, so we have tried several variations with paste usage. New paste, transfered paste from another line, and a new tube from another date code. I think the problem is profile, board design or humidity. I just have to starti
Electronics Forum | Wed Sep 01 11:51:01 EDT 2010 | horvath83
It's a very small series. There's already a decision to redesign the board to get rid of QUAD BGA transformers. We'll replace them with 2x transformers in other packages. We'll also try to order lead-free smaller BGA's on the other side to unify th
Electronics Forum | Sat Sep 18 03:45:08 EDT 2010 | vinitverma
Before reinstalling, just take a system data backup of the machine. It'll create one floppy which you will use in the form of "System Data Restore" once you have reinstalled the software. By the way, you should have 2 CDs, one titled Application Soft
Electronics Forum | Thu Aug 26 09:44:45 EDT 2010 | smtmfgeng
Hello all, I have a few CP43's and am struggling to find their air consumption ratings. I found that our IP3 consumes 240 Nl/min for the machine itself, and the MTU unit consumes 600 Nl/min, however Fuji's spec sheets do not list these ratings for t
Electronics Forum | Wed Sep 01 08:54:25 EDT 2010 | fedorend
Hi Namruht, One question, what exactly are you > wanting to achieve using "feeder calibration? In > what way would feeder calibration make these > feeders (between Siemens and Universal) > compatible? Or maybe i misunderstood your point > .....
Electronics Forum | Thu Sep 02 04:59:17 EDT 2010 | sachu_70
Feeder calibration helps to center the window opening used during component pick-up by a machine nozzle. Once this is established, the next step would be to confirm the centering of Machine nozzle to the center of this feeder window during machine op
Electronics Forum | Thu Sep 02 04:39:36 EDT 2010 | sachu_70
Are we now talking about some "Vintage Collection" cars or the regular ones that do not have much re-sale value? In the former case, it would surely be worth spending on maintenance. However in case of SMT line equipments, one should consider 7-10 y
Electronics Forum | Wed Sep 01 05:29:40 EDT 2010 | arjan
We baked the parts just before assembly. 2>we baked the parts and store them in 4 days in drycab (60degC, Rh0,5%)and finally assembly 3> we baked the parts and refowed them on a leadfree profile and finally the assembly on the boards. The same we als
Electronics Forum | Wed Sep 01 06:18:05 EDT 2010 | grahamcooper22
Dear SMT Manufacturer, As moisture is eliminated as the cause then solder paste volume will probably be the main contributing factor. More paste means more chance of solder balls and more flux fumes that need to be evaporated to reduce voiding. Even
Electronics Forum | Thu Sep 02 06:22:34 EDT 2010 | sachu_70
Good. This is the right way to profile. Let me ask you, have you anytime soldered QFN componets on your boards? The concept of LGA soldering is similar to that used for a QFN package. QFN soldering also exhibits void formations, and is an inherent pr
