Electronics Forum: underfill keep out (Page 10 of 113)

Keepout requirements for BGAs

Electronics Forum | Fri Jan 22 17:39:12 EST 1999 | chang hong lin

Does anybody have information on the minimum spacing required between BGAs (i/o counts close to 696)to avoid damage during rework? Also, on the keep out requirements between CSPs (o.5 mm pitch); between CSPs and BGAs. thanks in advance for your hel

Urgent

Electronics Forum | Fri Sep 25 01:56:00 EDT 1998 | Al Carrillo

Anyone Knows a chamber(or something like this) to keep the IC's out of reach of humidity, information about where can I buy one I apreciate. Thanks AC

Why is NC the prefer process for BGA mounting? why not WS?

Electronics Forum | Thu Aug 23 01:23:03 EDT 2001 | mugen

Thanks, for pointing out my lack of, precision inquiry methodology.... I'll keep it in mind, and stay on my toes, next time I post a forum question... Regards

BGA Assembly

Electronics Forum | Wed May 29 10:52:56 EDT 2002 | slthomas

Just wondering why you'd use a diamond shaped aperture? Seems like it'll just fill in the corners and be pretty much round anyway, so why not just start out that way and keep the volume you want?

Universal GDM users?

Electronics Forum | Tue May 20 11:32:38 EDT 2003 | JB

So far we haven't had any problems with air in the syringe, but in the process of replacing the old syringe is were we had the problem. I'll keep your tip in mind if we ever have the need to get air out of a syringe though. Thanks for the info. JB

Corrosion

Electronics Forum | Thu Oct 09 21:41:02 EDT 2003 | Dean

You could send the boards out for contract cleaning. Saponification and DI wash. I take it your rework process does not keep track of serial or ID numbers? What about tracking lot codes on the replacement part? maybe it's unique enough to isolate

V-Groove Keep Out Area

Electronics Forum | Fri Jun 11 12:46:19 EDT 2004 | Rob

I can't imagine a board to be 2" thick. Am I misunderstanding here? The thickest board I work with is 0.09" thick. That translates to 2.28mm. Did someone say that there is a standard to follow with regards to components near board edges or V-grooves?

BGA bake out....

Electronics Forum | Wed Jul 14 02:54:12 EDT 2004 | kmccarten

Feel free to also take a look at http://www.drycabinet.com We provide Dry Cabinet and Dry box storage solutions to keep MSD 's below 5% RH. You can also reach us by visiting http://www.totechamerica.com

Immersion silver life span

Electronics Forum | Wed Apr 20 01:08:16 EDT 2005 | charly

actually, i received a shipment from supplier where the vacuum seal was puntual and the HIC is out of order, the supplier ask me to bake and keep back into the store, but i worry is there any quality impact if i do so?

Looking for printer and placement machine agency

Electronics Forum | Wed Jun 15 14:51:28 EDT 2005 | russ

Please post in the marketplace, you will have better luck and it will keep all of the sales guys out of the technical forum (no offense intended Harry).


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