Electronics Forum | Mon Oct 12 08:07:45 EDT 1998 | Earl Moon
| I have datas to substain that a not wetting PCB ( the HAL oxided or not uniform in thickness )if soldered in reflow, it shows voids with X-Ray inspection.The voids are in side all the joints not only on the solder pads levell. | | Is there a techn
Electronics Forum | Sat May 10 12:58:33 EDT 2003 | stefwitt
I find 100 feeder slots of 16 mm width quite sufficient. If there are two feeder tables, each table is ~ 36� wide. Even slow machines can travel that distance in less then 1.5 seconds. If I further assume, that an optimized set up may save 30-40 % o
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 Mar 14 17:41:32 EDT 2008 | jerrysaise
Hello Before I say anything. Here is one caveat, I work for a 3D paste inspection vendor, I will not mention which. So you can take whatever I say with a grain of salt. Paste inspection will make a difference if you want to put the effort into it ma
Electronics Forum | Mon Jan 10 18:35:05 EST 2011 | eadthem
Ive used a Mirtec machine for 3 years MV3L with side angle inspection. Mirtec has some issues documentation, and repair plus. But there machine is impressive and the AOI software is good. We can find about 90-99.99% of all errors using just the 5
Electronics Forum | Mon Mar 06 17:17:13 EST 2000 | gary
I need a little help with RF and Rogers 4003 board material. My background was in digital and now I need to set up a new line to make small RF products (.5" x .5" or smaller). I want to find out about board platings, finishes/maskings and reasonable
Electronics Forum | Wed Mar 01 09:34:13 EST 2000 | Sorin
HELLO, Do anybody know if is existing an empirical rule that can show me how many amps can carry a plated through hole with a diameter of x.xx millimeters? Is there a formula depending on X.XX value that could help me to make such calculations? How
Electronics Forum | Fri Feb 25 11:13:32 EST 2000 | Russ
This probably won't help much but I find it at least a little interesting. During some experimentation recently I accidently loaded a board into the wave upside down and it had a PLCC 68 package along with other types of components that had only bee
Electronics Forum | Fri Feb 25 04:28:49 EST 2000 | Sze-Pei LIM
We faced terrible void issue while using Sn96.5Ag3.5 solder paste, more than 20% void. We tried adjusting the reflow oven profiles but we did not have much success in reducing the void. Generally, we find quick preheat, high peak temp. and fast cooli
Electronics Forum | Wed Feb 23 21:23:56 EST 2000 | Larry Johnson
Does anyone know where I can find something in writting on the proper ways to clean a mis-printed board using no-clean solder paste? If not, can any of you tell me what the best way is? Currently, we are running mis-printed boards though the Aqueou
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