Electronics Forum | Tue Aug 24 15:05:39 EDT 2004 | Dreamsniper
There is danger in doing this based on theory. Chances of the solder joints becoming cold or having poor wetting due to the fact that during the first run all the flux vehicles had evaporated and with the second run they're no longer present to help
Electronics Forum | Fri Aug 27 13:07:44 EDT 2004 | C Lampron
Hello, I believe that the area's of concern are primarily component related. Some component are rated for a temp (usually 260 degrees max) for some length of time. Tant Caps come to mind as being heat sensitive. The other concern would be the inerme
Electronics Forum | Wed Aug 25 22:55:59 EDT 2004 | pdeuel
We started placing 0402 with regular feeders and wasted every other part untill we got the correct feeders. The cost for most parts runs less than 1/20 th of a cent. Reels come in quanities of 10,000 instead of 5,000. You will also need the correct t
Electronics Forum | Thu Sep 02 10:43:02 EDT 2004 | Frank R.
Thanks Russ, Concerning PCB, I will consider positive and negative informations for all material exept OSP. I work with 350 persons in production and if the final result of the product is different depending of the person who andle it, I can't use t
Electronics Forum | Fri Sep 03 12:36:27 EDT 2004 | Frank R.
That's what I have ... two 5 zone reflow. A representative from AIM told me that 7 zone reflow is required with PbFree. It's good to know that it work fine with a 5 zones. Florida cirtech is the company who told me that SN100C do not damage your w
Electronics Forum | Tue Sep 07 23:57:05 EDT 2004 | KEN
If you want someone to do it for you, hire a consultant. IF you think its going to be handed to you over the web, get real. I don't think coke Inc would be where it is today if it published the formula to coke. For that matter, any CM or OEM would
Electronics Forum | Wed Sep 01 13:42:28 EDT 2004 | cmiller
We use a small DI water generator feeding a diaphram type pressure tank going to a standard dishwasher. We have some filters in-line also to prevent white residue on no-clean boards. I cant think of a good reason to buy a $5,000 board cleaner rather
Electronics Forum | Wed Sep 01 16:16:17 EDT 2004 | DenisM
Hi, I have used these type systems in the past and had trouble with white residue and flux removal under low standoff components. All cleaning systems need DI water and this requirement adds another layer of system cost if you don't have DI availabl
Electronics Forum | Wed Sep 08 20:48:28 EDT 2004 | Darby
Yes I agree with Russ about someone asking up front and everything else. Two tips. 1. Keep the marks at least 5mm in from the conveyor edges of the pcb so that clamping systems do not hide the mark. 2. Make sure the marks are eccentric around the pcb
Electronics Forum | Wed Sep 08 10:32:39 EDT 2004 | C Lampron
Good Day Everyone, I have a Class 3 medical customer where we are seeing solder balls adjacent to the fine pitch device leads post reflow. We are processing these with OA so small amounts of solder balls usually wash of at clean. These however, are