Electronics Forum | Thu Aug 17 09:01:26 EDT 2006 | russ
Well my friend, flux chemistries have changed. I do not want to drive you over edge but I use a straight ramp for lead as well!!!! Let the product dictate process!! I only soak when the delta T is not manageable with straight ramp. Please do not
Electronics Forum | Fri Aug 18 14:00:27 EDT 2006 | slthomas
Chunks is a pretty with-it dude. The only additional thought I have is the possibility of poor misprint cleaning. If they're wiping instead of spray or US washing they may be contaminating the boards prior to reprinting. And yes, I know Chunks is
Electronics Forum | Thu Aug 17 08:38:21 EDT 2006 | pjc
Any materials that come in contact with the flux should be made from stainless steel, titanium, or plastics. These materials will not corrode from OA fluxes. Overspray is an issue. I think Pillerhouse has that jet fluxer, so I don�t think there is mu
Electronics Forum | Thu Aug 17 08:49:11 EDT 2006 | Chunks
I would imagine your system is either stainless and/or some form of plastic. The water can rust but I doubt your machine has any metal that would be affected by it. You may want to double check your spray cell as well. We have been running water s
Electronics Forum | Tue Aug 22 12:04:11 EDT 2006 | rlackey
No, not by us mere mortals but where there WML there's hope. I'm not convinced the package would like around 260C either. Disclaimer: Please note I am just a simple engineer and was not privileged enough to attend Soltec University, instead having
Electronics Forum | Wed Aug 23 22:31:17 EDT 2006 | darby
Nope, and, Be careful with the "grid" on your stencil for the big centre pad - I could not find the stencil recommendations. I use a similar part by Cygnal (CP2101). Next time I will reduce the apertures by 50% from their suggested layout. We had fl
Electronics Forum | Thu Aug 24 03:20:36 EDT 2006 | aj
we had problems with fillets and shifting aswell,but the recommended print aperture is reduce thermal pad by 35% and offset the lead print by 3thou...i.e. 3thou over hang on outer edge of lead which also moves the paste 3thou in from the inner edge .
Electronics Forum | Wed Aug 23 02:48:11 EDT 2006 | ec
Hi, Appreciate someone could advise or forward a format to me how to work out number of pallet needed for wave-solder if the machine speed is at 1.0m/min, volume per month is 4500 sets, pallet length 0.3 meter, conveyor length 5 meter...... Looking
Electronics Forum | Thu Sep 07 17:24:29 EDT 2006 | greg york
normally one side is hydroentangled the other is not there is only one correct side which should be lint free and the other full of lint.that is wny people should never use rolls on both sides. Im of course talking typically (not sure of jnj brand) t
Electronics Forum | Thu Sep 07 07:41:06 EDT 2006 | Bubba
Check for coplaner leads if this just exists at reflow process, i.e. look at part before oven, turn on 3D at placement machine. If you see after wave solder, the wave could cause coplanarity issues on top as well if you are going slow enough to refl
