Electronics Forum: round (Page 9 of 44)

Cracked chip capacitors

Electronics Forum | Wed Mar 01 12:28:48 EST 2006 | Chunks

Round cracks that look like it's from a placement are generally from a too big Delta T in wave (been there done that). All other cracks are anomalies. Ya gotta see it find it.

Midchip solderballs (MCSB) on pb-free

Electronics Forum | Mon Sep 25 14:57:02 EDT 2006 | jaimebc

For this inverted homeplate, the edges are rounded vs. spikes. Check image here : http://www.emasiamag.com/article.asp?articleid=669

Flux residue cause high false reject at ICT

Electronics Forum | Mon Dec 18 06:50:42 EST 2006 | Loco

Thanks, if you ever get round to producing those swabs, you can put me on the order list.

The story so far!

Electronics Forum | Tue Dec 05 08:09:51 EST 2006 | patrickbruneel

Here�s a new round of exemption requests http://ec.europa.eu/environment/waste/rohs_6_consult.htm Look at No. 15 15. All electronics assemblies using lead in solder

APEX Venue!!

Electronics Forum | Mon Jan 22 23:05:19 EST 2007 | R.G.

Cal, I booked my room at the MGM in vegas today :)) Flight to LA round trip from vegas was only $103 :))

YAGEO wrong value resistor

Electronics Forum | Wed Oct 24 07:40:08 EDT 2007 | hussman

Herb, call me when you get this. Thanks. See you this Friday at the Round House. It's your turn to buy.

Fiducial replacements?

Electronics Forum | Mon Dec 03 11:44:14 EST 2007 | stepheniii

I've done a couple fiducial transplants from populated boards to non-populated boards in the past. I've also used a soldering iron on irregular shaped HASL fids to round them out. And that is a vintage rant.

PCB outer dimensions

Electronics Forum | Mon Jan 21 16:01:04 EST 2008 | fsw

All, I have a customer requirement for a PCB that has rounded corners with a radius of 0.031". Present brd house says this cannot be met. Any comments?

Assembleon parts

Electronics Forum | Mon Apr 14 13:24:46 EDT 2008 | ethancw1sel

Anyone have good luck rounding up part numbers for Assembleon part numbers for their feeders? It's rough trying to get them through the company it's self, and the manual's are not that helpfull.

Collapsing of micro bga ball due to improper land pad design ?

Electronics Forum | Mon Aug 25 10:36:05 EDT 2008 | davef

Yes, it's peculiar that the layout of this board is so disorganized * Pads are not round, uniform, or the same size * Exposed traces have different thickness


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