Electronics Forum | Fri Jul 13 08:54:18 EDT 2007 | rgduval
Has your board house reviewed the PCB layer stack? Make sure that the layers are balanced in copper weight, etc? Have you tried pre-baking the boards? We just had an issue with some boards warping that have never warped before for us. It happened
Electronics Forum | Fri Jul 13 12:32:14 EDT 2007 | rgduval
We've experienced this issue with SN100. A couple of things we've tried, all with varying levels of success: 1. Longer pre-heats. We use SN100 in a solder pot, and pre-heat the boards on our wave machine. This did have a positive effect, but I ne
Electronics Forum | Tue Jul 31 17:11:28 EDT 2007 | rpadilla
Is the via hole not supposed to be there, or is this by design? If you are trying to fill the via hole with solder and not have voiding issues, I suggest using a type 4 solder powder mesh size. Reason being, anytime you go beyond Type 4 mesh, to so
Electronics Forum | Fri Aug 17 05:58:29 EDT 2007 | dilogic
Hi, your machine is exactly the same configuration as mine. I even think we both bought them from the same seller ;-). Anyway, it's BLOCK-I with (most probably) USOS V1.4.14 software running on OS/2. I've registered the software with UIC for 400 E
Electronics Forum | Fri Aug 24 18:02:51 EDT 2007 | erokc
I'm needing to use DI water for the first time. I called the local Culligan man and was told that distilled water was the same as DI so I bought some. I wanted to determine if it was DI so after reading the postings in the forum I determined the re
Electronics Forum | Mon Aug 27 11:08:23 EDT 2007 | knutgaube
Siemens has always offered me a good service - no matter if i bought the equipment used or not. They are not even expensive. Check their hotline for further information. Hotline - direct link to SIPLACE The hotline is your direct link to SIPLACE kn
Electronics Forum | Mon Sep 10 12:27:32 EDT 2007 | hakerem
Hi Dave - You are correct that I was not clear in my comments. I assumed Joris had seen the usual solder balls accompanying his blowholes. Nevertheless, Joris, my first two recommendations still stand. Increasing the dwell time of your leads in t
Electronics Forum | Tue Sep 04 10:48:49 EDT 2007 | lloyd
How do other people check their solder joint strength after a process change? For example, say you are getting wetting problems and you feel that a change to the reflow profile may help, or perhaps a slight change to the stencil aperture to reduce so
Electronics Forum | Tue Sep 04 15:08:51 EDT 2007 | floydf
We have a job that has through hole components on the top, and one 44 pin j leaded PLCC on the bottom. Presently we put the through hole parts in, run it throught the wave, dispense paste on the PLCC pads, and then apply hot air. Someone suggested we
Electronics Forum | Fri Sep 07 17:38:23 EDT 2007 | bentigano
Hello James. I've got a YesTech YTV-2050 system at work with one top-down camera, and 1 side-view camera for each of the four sides. I do have the side view cameras being used for automated side inspection. There are some parts with markings that are
