Electronics Forum | Thu Aug 23 16:10:29 EDT 2001 | slthomas
Standard ESD bags aren't a vapor barrier, though, are they? Maybe you can get them spec'd that way, I dunno. You might have to get poly/foil bags and heat seal 'em. Fill 'em with nitrogen first, then suck most of it back out just for insurance. Don
Electronics Forum | Tue Oct 26 11:01:54 EDT 2004 | Simon UK
DO you have an xray onsite? One suggestion is to check what you can with that machine, i know it wont be able to magnify to 200nm or something, but it will show any ESD damage to the wire bonds or any major cracks of the silicon die. P.s. Most devi
Electronics Forum | Mon Jun 13 07:44:15 EDT 2005 | bandjwet
Peter: Based on our company's experience with removing a variety of different coatings, including parylene, the BGA's can be removed. We would use a chemical etch followed by a neutralizing process. We would then reflow the devices and pry them off
Electronics Forum | Fri Apr 01 04:51:53 EST 2005 | dougs
I think what Russ is getting at is that the granite table is used for it's flat surface to aid in measurement, the flat surface helps to measure heights very accuratly. If you add another surface on top of that then you lose what the granite surface
Electronics Forum | Tue Sep 19 12:26:56 EDT 2000 | Wolfgang Busko
This is a tricky one. One lead longer doesn�t count after cutting prior to assembly, from the other choices the flat edge is the one I prefer. But real life hits, we found us trapped the same way. First: We made sure they were not mixed in the same b
Electronics Forum | Tue Jul 07 12:33:39 EDT 1998 | smd
I am about to place a huge PO for ESD boxes. Our assemblies need to be placed horizontally in the stainless racks until wavesoldered, but after the wash they will be placed in the boxes. The boxes have a conductive film but they are still cardboard
Electronics Forum | Tue May 25 12:17:44 EDT 2010 | markhoch
Dang, you're picky. Try buying your operators mittens, and then tell them that your company has discovered that mittens generate less ESD so they're making them mandatory now. Then...after a few hours, bring them their gloves back and tell them that
Electronics Forum | Mon Feb 13 07:44:12 EST 2006 | Chunks
That's why I parallel ported the T/C's. Now I can use a calibrated hand help thermocouple and plug into the T/Cs on the oven. If they're within about 3 degrees of each other, then they're considered within our specification. Paper work on the hand
Electronics Forum | Wed Oct 01 10:57:53 EDT 2008 | blnorman
Oxford Instruments makes a device called the OSPrey 800 that measures OSP thickness on the pads. We took a look at it last year because we have one line that uses OSP. It is pricey, and that's why we didn't order one, but if you use a lot of OSP, m
Electronics Forum | Thu Oct 05 13:24:42 EDT 2023 | rgduval
So, a couple of things... First, you're asking about water washing a part, but, note that the manufacturer says to NOT ultrasonically clean their microphones. Those can be two different cleaning types...assembly shops using water wash may not be us
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