Electronics Forum | Thu Jan 04 09:59:37 EST 2007 | ratsalad
If you need any info about the 4785, let me know. If you understand Perl I'd be happy to send you the software I wrote for 4785 program generation. Mine is based around PanaPRO but it would at least give you a very simple optimization routine if
Electronics Forum | Tue Jan 09 22:04:48 EST 2007 | Guest
Set Up Guy, I am not sure if the COB you are refering to means Circuit on Board . If yes, this process also include SMT . Package is a combination of some passive components and bare die. Passives are normally attached thru SMT using solder te
Electronics Forum | Thu Jan 11 00:17:08 EST 2007 | behrsam
Thanks both of you for responding. I am using a protoype reflow oven. It uses a programable controller to ramp the temp up. It has convection and radiative heating. Ultimately yes, I would like to use a vacuum furnace like the sst but it is not c
Electronics Forum | Sat Jan 13 03:43:38 EST 2007 | Stephen- SMT engineer trainee
We are now using solder paste(OM325) and I have some problems on the folowing process: 1. We use the solder paste softer(Malcom SP-1) to warm-up for 20 mins, when it just take from refrigerator. Is there any problems for solderpaste performance? 2.
Electronics Forum | Mon Jan 15 03:42:08 EST 2007 | adamp
Hi all, Last week I have noticed, that solder changed colour in our Soltec wave soldering machine. I am using normal 62Sn37Pb alloy and it's colour changed to violet/darkblue with gold areas. I know that gold colour means that, there is to much Cu i
Electronics Forum | Mon Jan 15 13:49:09 EST 2007 | leemeyer
Hello all, I am having some trouble with the conveyor speed on an Omniflow 7 reflow oven. Recent profiling showed that the conveyor was running to slow so I calibrated the speed using the instructions in the manual. After calibration there was no ch
Electronics Forum | Tue Jan 16 16:59:39 EST 2007 | realchunks
Pallet angle is usually pretty good. Lead length is also another good thing to keep as short as possible. Air Knives don't work that well. Also check your board. Make sure you have solder resist between each and every thru-hole pad. If the board
Electronics Forum | Tue Jan 23 11:37:13 EST 2007 | electronhose
Here in the Great White North, the best way to check our CM's compliance with the ESD 20.20 is to take a couple months worth of data during heating season and graph it against the outside temp swings. You can easily see how the HVAC system keeps up,
Electronics Forum | Wed Jan 17 17:17:21 EST 2007 | russ
i would say that you are there already. with 10,000 DPM0 you have a 1% fallout, you are at 99.9 basically. 1 out of a 1000 boards will fail? of course one thing we need to know is how many opportunitites do you count for a chip resistor for exam
Electronics Forum | Thu Jan 25 15:52:07 EST 2007 | electrovert
What is your budget? Hsp 4796 from Universal is great. You can still use Hsp4790 feeders with the Hsp 4796. Hsp4796 is very durable and it is can self taught a component. This is very helpful for you since you do a lot of prototype. Universal (Gsm) h
