Electronics Forum | Mon Dec 26 13:31:16 EST 2005 | mariss
Addendum: The boards are 2" by 2.4" (50mm by 60mm) and have 158 SMT components and 20 thru-hole parts. The nine X7R caps are distributed over the board; some are in the middle, others are near the V-grooved board edges. There is no discernable rel
Electronics Forum | Wed Dec 28 15:40:21 EST 2005 | Chris
Your not using a jaw machine? Had a problem with jaw machine once. Could hardly see the cracks but give it a little heat and the crack open up. Adjusted jaws but ultimately had to move the cap to the chip shooter upstream. Moved the cap to the ja
Electronics Forum | Wed Jan 04 05:11:58 EST 2006 | dougs
I've seen cracked caps due to de-panelling on caps 40mm in from a board edge, if the cap lies on a stress line it can be cracked quite far in, i'd go with the other replies and make sure you use a "pizza cutter" type de-panelling machine for v-scored
Electronics Forum | Thu Jan 05 04:42:44 EST 2006 | Rob
Hi Mariss, "water soluable flux residue to somehow damage the X7R capacitors" I think you are looking into the wrong area. Yes flux is aggressive and can lead to problems, however it would not single out X7R capacitors above capacitors of other di
Electronics Forum | Fri Jan 06 09:22:23 EST 2006 | sarar
Here's an article our lab has published about green contamination - http://www.residues.com/pdfs/foresite_green.pdf If you are concerned with finding out just what is there and what the cause is, I would agree with davef that it would be helpful for
Electronics Forum | Tue Dec 27 08:55:31 EST 2005 | grayman
Hi All, We are a trading firm in the Philippines and currently expanding product lines. We are now looking for manufacturer of xray machines who like to expand market to Philippines. Please suggest who do you think has better features and specs. Th
Electronics Forum | Wed Dec 28 14:35:10 EST 2005 | chunks
E-Z Samir! He's just lookin' for an X-ray REP. He's not carrying the "X-Ray cures all BGA problems" banner. Usually the nurse/patient thing is due to the nurse really feeling sorry for the patient. And since Riyadh is the capital for mental insti
Electronics Forum | Mon Apr 16 22:44:25 EDT 2007 | Cmiller
I agree Rick, I still think the best was this one: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=7093&#Message36715 I know its long but its worth it. Unfortunatley, I believe Billy Ray is back here now or is dancing
Electronics Forum | Wed Aug 29 09:40:59 EDT 2007 | ed_faranda
I just got my Dage Machine last week. Scheduled for power up on Septemeber 7th.... From my research, Dage is probably one of the best. But, this is based on just research. Give me a couple of weeks and I can tell you from first hand experience.
Electronics Forum | Wed Dec 28 03:33:31 EST 2005 | sparrow
I would like to know if ENIG is widely used for the thermosonic gold wire bonding or this application is an exotic one. And I also wold like to talk to someone who uses printed circuits with ENIG finish for such an application. I do not quite underst
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