Electronics Forum | Mon Jul 24 03:02:35 EDT 2006 | emeto
CKH, if I understand you correct, only some components(for example 2 from 10 parts in one reel) goes wrong. there is one more. How your machine alignes the components? Vision, laser or mechanicly. The problem can come from there. If the recognition
Electronics Forum | Mon Jul 24 02:47:25 EDT 2006 | emeto
Hi CKH, If the problem is on the current board type only, the problem is in the fiducials or in the CAD data. If the problem remains on all boards(different product) it is definetly a machine calibration problem. Did you try to reteach the board one
Electronics Forum | Wed Jul 26 13:36:35 EDT 2006 | slthomas
I'm sure your local municipality's water quality department could hook you up with a lab to test your water for all sorts of things, but you might just open up a whole new can of worms in the process. Trouble is, testing your wash or rinse water doe
Electronics Forum | Thu Jul 27 05:02:11 EDT 2006 | Rob
If you don't have too many products to run, keep known defect boards for each product and run them through as a first & last off. That way you know if it has drifted out. Yes I appreciate it's not always easy to have a spare defect board/golden sam
Electronics Forum | Fri Jul 28 16:36:37 EDT 2006 | chrisgriffin
Thats a great idea Doc. If we all listened to your suggestions, there would be zero defects in PCB manufacturing. I bet your using Bahodum solder which, I'm sure, is incapable of defects. Pavel, sounds like you can rule out reflow as the problem.
Electronics Forum | Mon Jul 31 10:08:21 EDT 2006 | pms
My opinion................ If you want to stay with MyData, scrap the old TP9 (many things have changed with MyData machines since 1987, OS, software, hardware, etc), get a rebuilt one from MyData (they will NOT take your old one for credit), comes
Electronics Forum | Mon Dec 04 16:55:58 EST 2006 | Rog
Hello Dougs and Steve (the message before) I am the R from PDR. Sitting here in England browsing. Thanks for your comments. In the end, all the technologies work to some degree...but as you have found out, we have some good points. It has been 20 ye
Electronics Forum | Fri Aug 04 14:44:23 EDT 2006 | bvdb
RoHS actually allows for up to 0.1% lead in solder. Unless you are really sloppy at cleaning your tools it would be very unlikely that you would get 0.1% lead into your lead-free process (remember leaded solder is only about 50% lead). Regards, Ber
Electronics Forum | Wed Aug 09 09:54:36 EDT 2006 | russ
Use ENIG, plated finish will be too thick and make for a brittle joint. ENIG is self limiting so this condition cannot be present. To ensure that the bond is strong for BGA you must ensure that process is under control. The correct reflow profile w
Electronics Forum | Wed Aug 09 04:06:47 EDT 2006 | Rob
Bourns is quite a high end name in the electronics industry & you usually pay a premium for percieved Swiss precision engineering. If your card is far east built it is much more likely to have an inductor on from Murata, Panasonic, or one of the Chi
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