Electronics Forum | Mon Jun 23 04:00:43 EDT 2003 | Paul Cooper
Hi there There are a number of things worth considering when viewing bga's. Firstly, like any other solder joint that you have been inspecting for years, suface finish is critical. Secondly, and again like other joints shape is important. Now it may
Electronics Forum | Tue Jun 17 16:10:01 EDT 2003 | russ
First, what would you define as semi-automatic? For SMT production you might need a screen printer (these can be anything from full manual to full auto. The low end printers manual require each board to be aligned with a piece of mylar prior to p
Electronics Forum | Wed Sep 03 00:25:24 EDT 2003 | severs
I was recently approached by a leading industry consultancy group and was asked, ..."if there have been any major advances or developments in the field of electronics production, what are they?" It got me to thinking, we've certainly witnessed some
Electronics Forum | Mon Oct 20 10:28:13 EDT 2003 | Ming Diaz
Hombre, presuming you are doing this as enhancement for looks, I have some comments. 1. LED's seldom run on more than 3 volts. 4.5 volts max for some special types. Because the car is 12 volts all over, you have to use a resistor to reduce the v
Electronics Forum | Fri Oct 17 20:56:37 EDT 2003 | Mike Konrad
First, I should state that my company manufacturers batch and inline de-fluxing systems. Because we manufacture both formats, we remain unbiased. In fact, it is in our best interest to recommend inline cleaners since they sell for considerably more
Electronics Forum | Thu Jan 08 16:16:09 EST 2004 | Dean
My first concern would be the choice of solder paste you have. There are better chemistries out there that far exceed the capabilities of the 609 2. Yes, the part will partially float on the solder (assuming plastic qfp). Cross sectioning would sho
Electronics Forum | Wed Jan 28 10:56:31 EST 2004 | russ
the reason you don't want to use PPM is exactly the reason you need to. You cannot compare a square 1" block to a multi faceted custom machine part. In SMT assembly you will usually find that all 0603 and larger discreetes,25mil pitch, etc. are pro
Electronics Forum | Tue Feb 10 20:40:49 EST 2004 | Kevin McCarten
1st thing to be said; I work for a company that supplies Desiccant Dry cabinets to the electronics industry for the storage of moisture sensitive components. The answer here really lies in inventory management/control. Ultimately you want to avoid b
Electronics Forum | Fri Feb 20 12:55:43 EST 2004 | russ
Ah, the old contour wave. I don't really know how to adjust those to get correct backflow to reduce your solder volume. I need to ask why you are worried about this. Do you have a QC requirement in excess of IPC class3 wich allows for this joint t
Electronics Forum | Wed May 12 16:31:25 EDT 2004 | Mark @ SolderStar
In answer to your questions. (1) pls can any body throw some light on the reflow profiling? Reflow profiling is the process of confirming that you PCB's that pass through your reflow oven are produced within specifications provided by solder paste
