Electronics Forum | Thu Apr 14 05:23:10 EDT 2005 | dj_jago
What is the pitch of the device and what type of flux are you using? You may eridicate the fault by using a more active flux. I assume you are flowsoldering the device as opposed to paste in hole. Do you have an air knife? If so, you could tr
Electronics Forum | Wed Aug 10 07:55:21 EDT 2005 | ajaydoshi
we are using heareous F381, F352 no clean solder paste. specially in qfp for high frequency board we observe that cleaing / removing of ' no clean flux 'is require. if we do not clean same most of time after all test & envioumental test it shows pin
Electronics Forum | Sun Oct 09 04:59:49 EDT 2005 | olas
Which is the risk in soldering lead bearing components in a lead-free board with a lead-free paste? Is the reliability of the PWA seriously endangered or not? I have many lead-bearing components in my inventory and I don't know if I will be able to
Electronics Forum | Thu Oct 20 23:01:12 EDT 2005 | davef
A highly activated flux will allow intermetallics to form, because the hydrogen halide gas that formes at operating temperature will react with the refractory nickel oxide. Refractory nickel oxide is what makes SS "stainless". This will be worse wit
Electronics Forum | Wed Oct 19 13:32:12 EDT 2005 | shk5678
I have a couple of customers I showed this to and they were impressed with the capability but didn't know the price yet. Reason being was the control of the amount of paste applied to the pads could be adjusted. They both said they had problems with
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 | Fri Dec 09 08:53:12 EST 2005 | russ
We used flash gold once by mistake and we did pay for it. A very high fallout of BGAs and some of the leaded devices for latent failures from fractured solder joints. I do not know how the other types of components faired in this process but I woul
Electronics Forum | Sat Dec 10 08:13:53 EST 2005 | davef
We believe imm tin suppliers say that their product does not whiskey, oops whisker, because they use 'white tin' not the 'gray tin' that causes whiskers. But as soon as you alloy their tin with SAC or any other high tin content solder, all bets are
Electronics Forum | Fri Feb 24 15:15:33 EST 2006 | russ
The No-Clean indium lead free paste runs well. We discontinued because of extremely high shipping costs. We can get the same results with cheaper product. Almost all of the discussion in this forum about SAC305 and SN100C have to do with wave sold
Electronics Forum | Fri May 26 11:05:15 EDT 2006 | jbrower
Hey Pete. I agree, 250c is a bit on the high side, I'm working with the EM907 paste and getting great results witha top end of 230-236. Best of all, our CEO had a very dificult time telling which board was lead free and which was lead. Have a great
