Electronics Forum | Mon Apr 19 10:52:05 EDT 2010 | esca
Hi, if you want to verify the gold contamination, is mandatory to use the XPS and FTIR analysis, but is difficult think about a gold contamination from 3 different manufacturers. Do you have cleaned the PCBs after an erroneous screen process ? If no
Electronics Forum | Wed Apr 21 17:50:04 EDT 2010 | joeherz
Does it have to be one for both 1D and 2D? We > scan barcodes we print with a 200 DPI printer > which works out to 5 mil wide lines with no > problem. 2D barcodes need a completely different > kind of scanner. > > I know there are scanners > th
Electronics Forum | Fri Jun 04 01:13:31 EDT 2010 | boardhouse
Hi fotis, Big difference between Cem3 & FR4 is that FR4 the glass is woven and Cem3 is sheet glass non-woven. for Multi layer product, i would not consider Cem3 due to increase chance of de-lam due to lack of weave for strength. Cem1 and Cem3 are
Electronics Forum | Mon Jun 07 17:36:19 EDT 2010 | vmorina
Greetings SMT folks, My name is Danny, I am looking to purchase a low-medium/prototype reflow soldering machine. I would like to have your opinions for which vendor I should go for and model. I have been looking at the convection heating reflow sold
Electronics Forum | Fri Jun 18 17:36:10 EDT 2010 | sid
Good afternoon all, I have been trying to find a solution to a defect I just noticed. After stencil printing and smt part placement on the secondary side of my boards, I run them through a wave soldering system. All my components got soldered perfe
Electronics Forum | Thu Jul 08 04:26:27 EDT 2010 | bks
Hello, this is my first post in this forum, but sometimes I visit it to get some news. Now we have an issue and I need your advice. Few months ago we were awarded with a project that use PTH components. We solder these components on Wave soldering
Electronics Forum | Thu Jul 08 09:29:10 EDT 2010 | mb_mfg
There are several things that can be done. Shortening the lead length should eliminate bridging between lead. We had done a project several years ago where the customer had shortened the leads to almost flush to the board, preventing any chance of
Electronics Forum | Mon Jul 12 17:52:18 EDT 2010 | warwolf
Hello Our company has just bought a EWS 500 F XL wave machine (about 8 months ago) and i have been trained on how to use it so in new to the industry, things are going well so far but im a bit stumbled on the simplest thing and that’s weather or not
Electronics Forum | Wed Jul 14 15:36:34 EDT 2010 | remullis
98% to 99% pass yield should be your target. The previous company I worked for, we were able to meet these goals with most all of our products. It took us some years to achieve this level of pass rate. Of course analyzing and good reporting from some
Electronics Forum | Fri Aug 06 12:36:37 EDT 2010 | ooskii
dman97, There is a calibration procedure. It is fairly straight forward and will take about 30 minutes. When you reset you machine both of the squeegee mounting blocks/fixtures should be level with each other. Just slide you finger over the fron