Electronics Forum | Sat Apr 21 16:16:15 EDT 2007 | GS
150 grams)on a very thik board (> 3,5 mm)( we did it by DRS-24). On top to this, in case of need you can use also hot N2 (Nitrogen)and get low ppm of O2, for instance when soldering on OSP finisching using NC paste, etc, if required. Regards...GS
Electronics Forum | Thu Apr 26 11:21:26 EDT 2007 | slthomas
Question...when the machine said something was wrong, was it reading something wrong (false failure), or was there a true descrepancy but not one that resulted in a bad connection (bridge or insufficient)? Also, did you perform a DOE on the process
Electronics Forum | Mon Apr 30 16:07:20 EDT 2007 | vlad_uk
Hey Basam, What sort of production do you have and what size boards, changeovers etc. The politics is irrelevant to the best machine for your production environment? Mydata's are not the only option and the Used market is full of good alternatives,
Electronics Forum | Wed May 02 06:28:26 EDT 2007 | LC
In our first run, we actually followed the solder paste recommended profile then we were told to use the BGA recommended one. When we had the 2nd run we still got the same problem. We're using Kester 909HPS (lead free) and ENIG boards. Thanks.
Electronics Forum | Tue May 01 11:26:07 EDT 2007 | stefi
Hi, I need some splice tapes of reasonable quality at the lowest price possible. Can somebody provide some help with some prices of these items? The tapes we used before were very expensive, at about 200 EUR/500 pcs roll. We will consider using spli
Electronics Forum | Thu May 03 01:07:18 EDT 2007 | pavel_murtishev
Good morning, Worth system for 0.5mm or more pitch paste printing. For less pitch (uBGA, 0.4mm etc) framed stencil are preferred due to better tensioning. Main issue with them is handling. Stencil apertures that are used for tensioning might be easi
Electronics Forum | Thu May 10 14:35:06 EDT 2007 | mmjm_1099
I got told from my quoting department that they know of one and it is Polydyne. They can not vouche for it but have heard good things. We do not use that here but some of the people here have used this at other facilities and said they liked it. ht
Electronics Forum | Mon May 14 17:11:48 EDT 2007 | russ
I am a CM, We do not use White tin either, we have had numerous solderability issues with this finish, We all agree when done correctly it is good, however I am at about 10% correct and 90% have issues. We currently use Immersion silver and Gold f
Electronics Forum | Wed May 30 18:44:06 EDT 2007 | binow
Various processes throughout the factory will use a stamp to signify ICT has been completed or QA has been done. The problem we are having is once the boards have made it through all the steps and have the stamps on them signifying who did what; the
Electronics Forum | Mon Jun 11 10:04:33 EDT 2007 | d0min0
Hi, I'm trying to find quick and reliable method to keep thermocouple ball on the PCB to get best result from the profiling I use Kepton tape, working well but needs frequent checking if it is still glued well (seems to peel of in time) any other
winsouce.jpg)