Electronics Forum | Wed Mar 28 09:25:53 EDT 2007 | SWAG
Yes, pre-loaded feeders is the best way. If you do not have that option as you are high mix or do work for different companies that have many different part numbers, I would guess that your printer will take about 15 minutes to get ready, each HSP f
Electronics Forum | Wed Apr 04 14:29:16 EDT 2007 | rgduval
Anyone have experience wave soldering rigid flex assemblies? I've just picked up a new job from a customer; it's a rebuild for the company, but new to me. The customer had previously taken their business elsewhere due to delamination problems with
Electronics Forum | Fri Apr 13 10:13:30 EDT 2007 | Bob R.
We had a crisis with one BGA causing huge yield losses due to this defect. Nothing we could do with the profile got rid of it. Changing paste didn't get rid of it. It was the BGA warping in reflow, caused the corners to lift up when the solder was
Electronics Forum | Sun Apr 15 20:58:17 EDT 2007 | darby
PCB > Origin > O* > Skip = No Data In > PCB > Mount > M* > Skip = No Data In > System > Parameter > Position > Waiting Pnt Check that the waiting point is not set at such a co-ordinate that the PCB sensor is seeing the gantry. The pcb sensor also h
Electronics Forum | Tue Apr 17 14:57:10 EDT 2007 | ratsalad
Hi there CK, I didn't follow the link yet, but I thought I'd comment on your post here. I've attended two engineering schools in the USA, and one of them was a pretty darn good school. At both, I would have to say about 80%+ of the graduate studen
Electronics Forum | Tue Apr 24 18:21:30 EDT 2007 | flipit
Hi, The verbiage states lead finish on components and not solder used in assembly. I have found nothing that states that Swatch got an exemption. Although the 650 micron pitch spec seems to have come from the data Swatch presented in their execpti
Electronics Forum | Mon Apr 23 11:49:46 EDT 2007 | ck_the_flip
Wow, you're using the Surface Mount Adhesive for mechanical vibration? I've never heard of SMT adhesive being used for things other than holding the components in place before wave solder. Does it work for mechanical purposes? Glue/Wave is a proce
Electronics Forum | Wed May 09 17:48:10 EDT 2007 | ratsalad
AOI should not a be a filter at which you throw a mix of good and bad parts to hope it filters out all the bad parts. It shouldn't be seen as a "fix" to the problem of shipping bad parts to your customer. It should be a tool to help you identify wh
Electronics Forum | Tue May 01 01:39:16 EDT 2007 | basem
Acquire a fast dispensing machine that can deposit solder paste to keep a low volume pick and place machine working. This would save us two things: 1) Stencil delivery waiting period for customers who bring with them their PCBs fabricated in the loca
Electronics Forum | Thu May 03 18:21:09 EDT 2007 | ratsalad
We just recently registered with UIC a GSM that we obtained used from another company. I don't recall exactly how much it was, but I believe it was in the $1000-$1500 range. All they are really charging you to register is the software, not the mach
