Electronics Forum | Mon Oct 31 09:52:23 EST 2005 | slthomas
The only problems I've ever had with 208's shifting out of alignment was with a board with too much HASL thickness. The lands had a convex profile and the parts kept slipping downslope. We put down a glue dot and ranted at our board supplier. Both
Electronics Forum | Wed Nov 02 11:14:45 EST 2005 | Doug
I am doing lead free testing on a Vitronics selective machine with a 4 mm nozzle. The finishes I am testing are ENIG, ImSn, and ImAg. The problem I am encountering is achieving good top side wetting. Has anyone had any luck with this type of an ap
Electronics Forum | Thu Nov 03 09:43:55 EST 2005 | lupo
Check flux penetration and type of flux. How much is solid contents. The solder filling is better under Nitrogen. Check the time (speed) of the nozzle whether is correct. Usually For SAC305 the temperature of bath is 320C/degrees, but only for sel
Electronics Forum | Wed Nov 09 08:39:59 EST 2005 | smtspecialist
Thanks Avalancher. I had no clue about the fact that Mydata could analyze part for me. Since I'm in montreal it's hard and expensive to get a Mydata guy up here but sending the parts down there would be an great inexpensive solution. I've been over t
Electronics Forum | Tue Nov 15 09:50:40 EST 2005 | chunks
Good ol'Wenesco. That's one of my old products they have in their advertising. The tricky part about dip process is in the fluxing. Spray fluxing a populated board from the bottom looking up can be a challenge. You'll notice the areas you missed
Electronics Forum | Mon Nov 14 12:16:54 EST 2005 | Ajay
Hi, I have a lead free solder joint 75micron wide & 3mm in length with copper on either side of solder. Is there any method/relationship between Cu dissolution & Cu weight% so that one can determine how much copper can be present in the solder afte
Electronics Forum | Tue Nov 22 16:22:27 EST 2005 | moonshine
That is funny if you have a cable guys view of the world - and just what is that? I'm always trying to see things from a new perspective. Don't worry if you can't read because my site has so many simple pictures for you. MoonMan
Electronics Forum | Fri Nov 25 12:12:46 EST 2005 | pjc
To state whether an oven can or cannot "do lead free" very much depends on what type of product you need to solder. High thermal mass products are problems for 4 and 5 zones ovens becauase they typically cannot follow the solderpaste mfrs. profile, u
Electronics Forum | Wed Nov 23 12:34:35 EST 2005 | PWH
Cartridges/dispenser systems supply even paste volume to the screen. This will help provide the most consistent squeegee roll as well as paste deposition on PCB. Messier, though = much printer maintenance. Some people also like to use a caulking g
Electronics Forum | Sun Nov 27 10:42:51 EST 2005 | mika
We will be happy to help You out; if You can provide us with some information on what You need and why. There is so much on this topic, so it is almost not possible to fulfill Your needs, without knowing what exactly You are loking for. Or, perhaps Y
