Electronics Forum | Tue May 23 09:27:37 EDT 2006 | Steve
Sorry I misled you. The PCB pads are wetting, but there is no fillet being formed. After reflow, it looks as though no paste was put down on the pads; however the paste print is fine. All other components solder real nice, it's only the Pd-Ag parts t
Electronics Forum | Thu May 25 15:14:07 EDT 2006 | H
Anyone think that this, http://img336.imageshack.us/my.php?image=nodule27wc.jpg, is a nodule which will eventually grow into a tin whisker? Observe the plating on the component lead. Thanks in advanced for opinions.
Electronics Forum | Thu May 25 15:31:08 EDT 2006 | samir
H, I tried without the commaat the end http://img336.imageshack.us/my.php?image=nodule27wc.jpg Seems to work. IMO, it looks like questionable component plating and not this so-called "nodule".
Electronics Forum | Fri May 26 11:44:36 EDT 2006 | H
Patrick: The image that you see was from a unit that was known to have gone through a 5-year environmental life test. However, we took another board, pre-refow, and scoped a similar device. It exhibited the same grainy component plating.
Electronics Forum | Thu May 25 23:26:23 EDT 2006 | adihsr
anyone who knows if really BISMUTH is not good as a replacmeent plating for lead free?...pls.. advise..have a good day...
Electronics Forum | Fri May 26 10:22:27 EDT 2006 | pjc
Read this for info: http://smt.pennnet.com/Articles/Article_Display.cfm?Section=Articles⊂section=Display&ARTICLE_ID=229915
Electronics Forum | Wed May 31 23:37:37 EDT 2006 | jacksaria
Hello EC, Thank you very much for the good input. I really appreciated. Our mounnters is Panasonic CM402,CM301. Do you have any suggestions/procedure how to reduce the sources of variance at each step of component placement process? regards,
Electronics Forum | Thu Jun 01 05:05:30 EDT 2006 | jacksaria
Hello EC, We already done your suggestion but still no effect. Feeders already calibrated. Do have additional inputs for this? Also is the barcode eliminate 100% wrong value component? regards,
Electronics Forum | Fri Feb 16 08:15:26 EST 2007 | dougs
EC Fix your machine rather than slow down the CAM, on 0603 & 0805 components CAM speed should always be 100% on any of the fuji machines.
Electronics Forum | Thu Jun 01 05:06:10 EDT 2006 | EC
Hi, I facing some 1005 component with poor wetting and look like not enough solder...... Is there any standard solder paste volume requirement. Appreciate all the input.
