Electronics Forum | Mon Jan 04 21:32:40 EST 2010 | boardhouse
Conductive Anodonic Filament My worry is that any extra moisture added to the Lead free Material during assembly may cause this Conductive filament to grow within the material weave. They are water washing after through hole assembly and then after
Electronics Forum | Thu May 06 13:06:36 EDT 2010 | dwonch
Unfortunately nothing ground breaking to report. The board shops analysis (SEM/EDS)showed high levels of carbon and oxygen, likely indicating an organic based contaminate. They are still stumped on where it is coming from. We recieved some boards y
Electronics Forum | Thu Jun 17 12:32:25 EDT 2010 | floydf
Last July I posted a query about reflowing leaded > paste to gold plated boards, I wasn't getting a > good reflow. The answer that seemed to work was > dwelling the board at reflow for the maximum > recommended amount of time. Would anyone have a
Electronics Forum | Wed Jul 07 11:02:07 EDT 2010 | davef
Rob gave you very good analysis and suggestions for troubleshooting your non-wetting issue. We agree with his sequence of troubleshooting. The following comments are meant to be a line to supplement Rob's plan of attack. This adds to Rob's comment
Electronics Forum | Fri Sep 03 08:19:44 EDT 2010 | rway
Agreed, but his fiducials aren't working so he may have to resort to something a little bigger that returns a more consistent pattern. You are correct, this will provide less accuracy than his fiducials but will save him the expense of cleaning his
Electronics Forum | Sat Aug 21 02:37:56 EDT 2010 | horvath83
What would You recommend? PCB has 5 medium sized lead BGA packages on one side and huge lead - free BGA. On the other side among other elements of course there are 5 big sized lead - free BGA Quad Gigabit Pulse transformers. PCB plating: Ni/Au.
Electronics Forum | Fri Jan 07 09:23:16 EST 2011 | ercdave1
I removed the front cover of the controller box and found a cable secured to the right plate with cable ties but no floppy. the cable has a 50 pin connector. maybe is an option on your machine that my didnt get. I hope tom has better luck. I am goin
Electronics Forum | Wed Apr 13 13:40:27 EDT 2011 | jebs
Hi. the res/cap is mostly 805, solder paste will be led free and will only have a few fine pitch IC on each board. The boards will contain between 140 - 160 components and will run a production of 300 - 500 each day with only one or two different boa
Electronics Forum | Tue Aug 23 16:48:29 EDT 2011 | jax
assuming Sn05Pb93.5Ag1.5 Without knowing what you are trying to solder, PTH or SMT, the time might not be that far off. Does that time include stripping, cleaning, plating the leads prior to soldering onto the board?... pre-tinning the board as well
Electronics Forum | Thu Sep 29 19:11:47 EDT 2011 | swag
Now I see - not sure. The only trouble I've had that was similar was because an electronic eye on one of the stages was seeing a machine that was installed a couple inches over the top of the conveyor. We had to install a flat black plate on the ma
