Electronics Forum | Tue Sep 17 16:22:51 EDT 2002 | bdoyle
blocking access isn't as easy as it seems. One way we could do this (which has been proposed again recently) is to require site registration to post. Registration takes about 30 seconds and is pretty non-invasive so I don't really see it as an obs
Electronics Forum | Wed Sep 25 02:52:25 EDT 2002 | jkhaiar
Hi There Good point from all contributers.Depending on the coast effect and production ability we used a heat resistant coating directly applied to the plastic base of the PCI connector in a very dense SMT PCB.we used a short pulse soldering by run
Electronics Forum | Fri Sep 20 19:08:02 EDT 2002 | kenbliss
Brian How about setting up two levels of archives, one that is �inactive, accessible for comments� the other �archive� that is no longer changeable. The 12 day rule of inactive would simply roll to �accessible� and after 30 days total of inactivity
Electronics Forum | Fri Oct 04 12:02:53 EDT 2002 | mzaboogie
Hi Barry, One consideration that you may want to consider is the lead to hole ratio. The higher the ratio, the less solder is required to fill in the gaps and give you a fillet. Heat is a concern. You will need to ensure components will take the he
Electronics Forum | Wed Oct 02 12:16:21 EDT 2002 | dragonslayr
Dave- thanx for the suggestion and I have already downloaded the catalogs of both companies you mentioned. I am trying to narrow down the list for the BGA patterns most commonly seen vs. the shotgun approach of making one of everything, just in case.
Electronics Forum | Wed Oct 02 11:44:58 EDT 2002 | slthomas
We found that a slightly more active flux was all we needed to provide sufficient wetting on the one AgPd part we put down. Unfortunately the paste we tried also slumped terribly, so we nixed that fix. It's a low volume product (50, once every 3 mo
Electronics Forum | Fri Oct 04 11:25:49 EDT 2002 | Bob Willis
If you want some additional material on 0201 design and assembly the SMART Group Committee produced one of its Charity Reports with all the money raised going to the Red Cross USA September 11th Appeal. You can get it from the SMTA Main office, it fe
Electronics Forum | Tue Oct 15 15:51:21 EDT 2002 | dragonslayr
Brian - a recent thread (early September) instigated by yours truly postulated on the "deep fried twinkie" experience. It seems to be a trend at the local county and Sate fair circuit. I hear rumors it all got started in Texas. I have actually tasted
Electronics Forum | Tue Oct 15 13:40:23 EDT 2002 | greenman
I'm currently trying to get a feel for what oxygen level I will need in my lead-free assembly process. Do I need to go with the pure vaporized liquid nitrogen, or can I get away with one of the other "on-demand" operations? All assistance gratefully
Electronics Forum | Mon Oct 21 13:12:38 EDT 2002 | pr
Try a "cross" design across the problem apertures. So you wind up with 4 smaller deposits on the PCB (instead of 1 big one) but should be enough to hold the component. It worked for us and was much easier on the blades (they kept catching on the far
