Electronics Forum | Mon Dec 11 19:21:32 EST 2023 | SMTA-64387074
PVA and Specialty Coating Systems both have equipment that are easy to program and maintain. It is a spray booth so maintenance needs to be regular or you will have quite the headache. We have a conformal coating line with 2 coaters a board flipper a
Electronics Forum | Thu Sep 01 11:17:52 EDT 2005 | chunks
There are many rules, but balance is the key. It all depends on your processes, type of equipment you plan to run the panel through, as well as the type of components going onto the board. If your single up circuit has 6 thru-hole caps, 5 connector
Electronics Forum | Thu Aug 05 06:29:18 EDT 1999 | Graham Naisbitt
| | | We're getting field failures in a high impedance portion of the circuit. Think the unpopulated pc card has contaminates because we were able to grow dendrites by applying a 9 volt battery across the suspected pad, placed a drop of de-ionized w
Electronics Forum | Sun May 16 10:11:50 EDT 1999 | M Cox
| I'm running memory module product- SMT double reflow ( 12 modules per panel). I'm using the epoxy base solder paste in order to reduce the flux spattering problem onto the gold finger which could lead to the intermittent contact problem. | | I do
Electronics Forum | Fri Feb 10 15:14:08 EST 2006 | Chunks
Establish a profile board. It should be representative of what you normally run on a daily basis, size and parts wise. Attach dedicated thermalcouples so they are permanent and will not move or come loose. High temp solder is best. Establish a pr
Electronics Forum | Mon Apr 04 09:45:55 EDT 2005 | Homer
IPC may help, otherwise there are many factors: Are the PTH clinched or straight? If straight, what length protrusion? What direction are the parts running thru wave? Is product on a pallet? Not to mention your soldering process: What type of mach
Electronics Forum | Sat Aug 28 14:16:18 EDT 1999 | JohnW
Doug, Have you tried running the boards at an angle to the wave of between 15 - 30 degree's ? I've done this on a few boards to eliminate short's and I believe it will work on your problem very sucessfully. Best thing to do is get your wave solder c
Electronics Forum | Fri May 14 12:49:23 EDT 2004 | ehess
ok, we currently have one wash we use for everything, thru-hole and SMT. The configuration of our floor puts the SMT area at opposite ends of the floor than the wash, thus causing a lot of back and forth to the wash. We want to purchase a smaller w
Electronics Forum | Tue Jun 06 15:19:39 EDT 2006 | muse95
For some, not all, hand assembly, we use additional flux. We use a flux pen in certain applications and liquid flux in other applications - you can't just say switch to a flux pen, it isn't always adequate. Most flux pens are ORL0 with very low sol
Electronics Forum | Tue Mar 02 13:00:12 EST 1999 | Bill Haynes
| I'm trying to get a feel for what the industry is doing with regards to collecting assembly defect data in the SMT/PWA process. Is it sampling or 100%? What are the points within the process where critical assembly defect data is collected. We run
