Electronics Forum | Tue Jun 03 13:01:16 EDT 2003 | Ramanandkini
We have some experience in manual application of conformal coating using a brush that too for small circuits espceially on the soldered pads. We use Chase corporation's Humuseal 2A64. This passes high humidity tests. I am also in touch with Lackwere
Electronics Forum | Fri Jul 04 01:32:15 EDT 2003 | rheise
I've seen numerous incidences of mirror image cracking under endcaps in high dielectric material ceramic capacitors due to thermal cycling. If the cracking is deep enough to extent through the plates you can get breakdown and shorting. Section the ca
Electronics Forum | Tue Mar 09 14:22:09 EST 2004 | billschreiber
There is an article on our web site by Richard Clouthier, �SMT Stencil Cleaning: A Decision That Could Impact Production.� He talks about how high pressure sprays can damage the delicate land mass areas between fine-pitch apertures. High pressure ai
Electronics Forum | Fri Mar 18 14:21:02 EST 2005 | Dreamsniper
We are producing control products for the Aerospace Industry both Commercial and Military. I have TQFP 100 fine Pitch in one of my PWB's Solder Side and have no misalignment problems or defects on my part after 2nd reflow. I control my reflow profile
Electronics Forum | Thu Sep 07 07:38:14 EDT 2006 | travis1977
I have experience programming and using the yestech system in a high volume high mix environment. The system seemed to work well until I used a more sophisticated system. When I changed jobs and had another opportunity to spec. in paste and post-r
Electronics Forum | Tue Jun 26 20:51:44 EDT 2007 | davef
You're correct. In the metal working industry, it's common to discuss swarf. For instance: Swarf is a mixture of small metal particles, cooling fluids, lubricants, and residuals from grinding media such as abrasive belts or stone wheels. Swarf is ty
Electronics Forum | Sat Jul 03 15:14:25 EDT 2010 | scsi
Hege, can you share more info on the formulation you ended up using for the micro dot dispensing? I'm trying to find the proper metal load and viscosity for the auger valve dispenser that we are developing and it looks like the regular low viscosity
Electronics Forum | Mon Oct 30 10:16:17 EDT 2017 | swag
We have two selective wave machines that run all day every day. We're pretty high mix. Almost all products don't require preheat but it is nice to have in case you need it on something dense. Good reliable flux sprayer is important. Software that
Electronics Forum | Tue Nov 21 22:15:59 EST 2000 | Vince Whipple
Mohammed, The first suggested place to start with your question would probably be with your flux Mfr. Push them! The quantity of dross is effected by several factors: The higher your solder pot temp., the higher your dross level... but don't go too
Electronics Forum | Wed Mar 22 10:29:15 EST 2000 | C.K.
Larry: I've got extensive experience with solder skips on both 0603 and SOT23 devices. We also installed an "Omega" vibrating wave on our machine, but it didn't really have an impact on solder skips. The major difference that the omega makes is in
