Electronics Forum | Mon Dec 06 12:37:57 EST 1999 | Russ
Christopher, in response to your request concerning if I have the same issue using OA fluxes the answer would be no. This finish works well with all of our current Water Soluble fluxes. As a note, I have done some further testing and so far it see
Electronics Forum | Sat Dec 04 09:23:20 EST 1999 | Christopher Lampron
Kantesh, Does this particular part have a heat sink across the bottom side of the component and does your pad size and stencil aperture match the component? I have just had a very similar problem with a DPAK. What we found was that the recomended pad
Electronics Forum | Mon Nov 15 10:43:23 EST 1999 | Brian W.
I think the issue may be more than just the oven. I worked at a facility in Florida, where lightning strikes were common. We installed backup generators for the facility. Among the issues and costs we analyzed were: frequency of outages, boards i
Electronics Forum | Tue Nov 16 14:10:30 EST 1999 | Bill Schreiber
According to a paper by Richard Clouthier, published in 1996, there are two major factors about normal cleaning chemistries that may affect stencil adhesives. 1) Elevated temperature above 110 degrees F. (45 degrees C). Stencil adhesives are heat c
Electronics Forum | Fri Oct 22 11:25:03 EDT 1999 | Boca
I understand what you're looking for, criteria which determmines a good or bad finger. I have not found anything as cut and dried at that, we just eyeball them. If they are very bad they should stick out like a sore thumb. We check for them each s
Electronics Forum | Thu Oct 14 08:01:48 EDT 1999 | JohnW
Gee Dave That's the first time I've ever seen myself listed for a quote! Brian, what your saying is on the whole right, on the surface of it the mask, as long as it's cured properlay shouldn't make a difference but I have to say that I've found so f
Electronics Forum | Wed Oct 13 03:11:10 EDT 1999 | Paul Gerits
Hi Zambri, I work for Philips EMT (supplier of SMT equipment) as technical consultant and application specialist. depending on what you want to know there are several ways to calculate machine utilisation. 1) Machine efficiancy. Available uptime
Electronics Forum | Wed Oct 06 10:50:03 EDT 1999 | Wolfgang Busko
| Hopefully, everybody suffers from solderability of SOT-23 devices and I would like to know how everybody else resolves this problem. | Historically, here, we have always gone for 6 thou stencils. I found that going to an 8 thou stencil improved the
Electronics Forum | Thu Oct 07 18:30:22 EDT 1999 | jason gray
| | Hopefully, everybody suffers from solderability of SOT-23 devices and I would like to know how everybody else resolves this problem. | | Historically, here, we have always gone for 6 thou stencils. I found that going to an 8 thou stencil improved
Electronics Forum | Wed Sep 29 16:21:15 EDT 1999 | Mark Quealy
| | There is a company selling pcb with the solder past on the pads and coated with a tacky film to hold the part during assembly. Have you heard of them and can you tell me how to contact them? | | | | Contact Matt Kehoe at 770-475-4576 or 847-740
