Electronics Forum | Thu Jun 28 15:22:59 EDT 2012 | spitkis2
Would like to ask end users or those with experience using infra red rework equipment (specifically when the top heater is IR) the following: 1. Can you successfully rework Package On Package (PoP) type devices? With heat directed through the packa
Electronics Forum | Fri Aug 03 14:55:26 EDT 2012 | davef
Not the best situation in the world, but you know that. Check with printer equipment suppliers [eg, DEK, MPM, etc] for a product called "Stencil Clean Wipes." Back in the old days, we'd: * Wipe the stencil with a solvent soaked wipe * Put the sten
Electronics Forum | Wed Aug 15 08:33:31 EDT 2012 | jdumont
Wondering if anyone has ever run across this in their travels. We have gotten a few field returns back in recent months and it appears that many of the balls of the PPC440 CPU BGA (ceramic) have shifted. I know we Xray this part 100% during assy so
Electronics Forum | Thu Aug 30 13:02:37 EDT 2012 | rway
This may have been asked, but what ESD protection does your facility already have? With proper techniques and equipment, this should be a non-issue. As long as folks aren't using the pcb's to comb through their hair, you don't have to worry about i
Electronics Forum | Fri Oct 12 11:18:57 EDT 2012 | srgbarba
Hi, I want to ask if someone saw the combo process at smt lines for panel array (bot & top per both sides), I just perform some experiments and it works perfectly, and I validate the T hus (Cg/Pa) and no one component were dropped after the 2nd reflo
Electronics Forum | Tue Nov 20 19:56:12 EST 2012 | hegemon
In order to be able to do full prototype assembly, you will need to be able to mount and reflow a large number of different devices of differing technology. One part might be a simple QFP, another might be a .4mm pitch uBGA. If you are prototyping a
Electronics Forum | Wed Jan 02 09:24:00 EST 2013 | swag
Thanks for the help. Ramp soak spike but due to the density of this assembly it's more like ramp spike. Yes, leaded. I'm getting similar results with or without the carrier. (I designed the carrier like swiss cheese, full of holes and scallops on
Electronics Forum | Mon Jan 21 20:15:50 EST 2013 | jeremymek
It depends really on what you are looking to spend. there are small bench top ultra sonic style cleaners ( eg http://www.gen3systems.com/viewprod-GENSONIC.php) or larger full automatic immersion style cleaners eg http://www.mb-tech.fr/en/our-soluti
Electronics Forum | Mon Jan 21 07:01:02 EST 2013 | ericrr
I can not believe this, We get back from Summer holidays turn on the first machine Juki KE750L goes to do a home and before the head moves, Error notice: rear feeder rise error, I go around the back, nothing out of place. but notice the receiver end
Electronics Forum | Wed Jan 30 01:54:14 EST 2013 | onix45
Hello, I am a student and i am having problems with understanding a certain pcb design. You can find the pcb here: http://pdf1.alldatasheet.com/datasheet-pdf/view/449682/TI1/LMR62014.html What i don't understand is if the pcb is just routed normall
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