Electronics Forum | Tue May 02 15:09:40 EDT 2006 | PWH
Just a few problems you might have to deal with: 1) Your bare boards must be clean and kept clean though-out the process. You could notice handling contamination that might otherwise have been removed in your wash. 2) You will see solder balls a
Electronics Forum | Wed May 10 00:27:46 EDT 2006 | Chris
Russ, By a longer profile you mean a more even slope across the entire profile. Unfortunately I only have a 5 zone oven that is fairly short. How many heated zones are you using? Did you shrink the 0402 pad design and leave less pad exposed out a
Electronics Forum | Thu May 11 12:44:04 EDT 2006 | slthomas
One of our customers' products has a couple of adjacent 0603 packages (one resistor, one cap) that are .010" apart. They are side by side, not end to end. The adjacent pads between the two parts are electrically connected so bridging isn't an issu
Electronics Forum | Mon May 22 11:28:56 EDT 2006 | Rob
Hi Pat, The main driver for the UK on Lead-Free is to avoid leachate in our drinking water & in the food chain. Whilst John Burke's report is compelling & I agree with him on the points he has raised, regarding the leachate issue he has referenced
Electronics Forum | Thu May 18 16:10:18 EDT 2006 | adlsmt
We did a tin bath on ours but it was provided for free by Nihon Superior so that is a no-brainer. It was better than taking a risk of having to dump the pot. If you cant get a free tin bath, then you should probably go ahead and fill it half way or s
Electronics Forum | Sun May 28 19:02:11 EDT 2006 | grantp
Hi, One thing, getting back to the original topic, is you might want to panelize these boards as much as possible, as you don't have too many components, but you have some good volume. So the machine changeover time is going to be an issue. Althoug
Electronics Forum | Thu Jun 08 05:58:39 EDT 2006 | Base
Hi Efren, Did some simple math... - 100k units/month - 24 days/month - 16 hrs/day - 75% efficiency (ballpark questimate) You'll be looking at a line that does a bit more 50kCmp/hr with an IC/TH placer that does 3.5kCmp/hr (assuming 10 IC's /TH conn
Electronics Forum | Thu Jun 08 16:03:52 EDT 2006 | jbrower
On Saturday the 3rd, I offloaded nearly 1200 pounds of solder from my Electrovert, did the tin purge and loaded nearly 1200 pounds of sn100c back into my solder pot. It was a hell of a job, but we got it done in 8 hours. We've been running with this
Electronics Forum | Wed Jun 14 18:07:11 EDT 2006 | grantp
Hi, Thanks for all the help guys, and we did a bunch of things to get it working. We raised the pump speed, and also went to a water based flux, which helped a lot. We also reduce pre heat as we were burning off the flux. It's doing really nice jo
Electronics Forum | Mon Jun 12 13:08:20 EDT 2006 | jbrower
Howdy Bolos, My question to you is why do you feel the need to buy new equipment? We've changed over our processes to lead free and used our existing equipment. Heller 1500 (5 zone convection reflow) Electrovert econopak (wave solder) Honestly we hav
