Electronics Forum: amounts (Page 96 of 171)

Cu dissolution PTH

Electronics Forum | Wed Jul 06 13:06:22 EDT 2005 | patrickbruneel

Dave, Great to see you more involved in the lead-free. I assume the tests you have done were in lab environment, would it be possible to explain how you measured the area reduction (loss of weight or reduction of diameter/thickness) and how did you

PROBLEM IN ONE COMPONENT (0603)

Electronics Forum | Sat Jul 16 08:12:44 EDT 2005 | davef

skandaae: By "tilt" do you mean that one end of the 0603 has lifted from the board surface? If so, we call this "tombstone". In general, tombstoning is caused by an imbalance in temperature or forces on the component. * Convince yourself about the

ESD question

Electronics Forum | Tue Jul 12 10:22:41 EDT 2005 | chunks

Use a metal can and it will ground to your ESD flooring or can easily be grounded with a roach clip to bleed any ESD away. Generally, the plastic cans with plastic liners can build a pretty good charge up. You should really think "recycling" of ju

Very fishy missing solder paste issue

Electronics Forum | Thu Jul 21 02:45:51 EDT 2005 | Base

Probably very far-fetched, but I can think of a scenario like this: - machine picks up a component - between vision and placement the part is lost, but the loss is not detected due to oversize tool, which causes the amount of vacuum drop to go unnot

Asymtek vs. Camalot

Electronics Forum | Wed Jul 20 17:04:39 EDT 2005 | pjc

Would you risk your equipment decision on the �opinions� of a small select group of others? I have found this to be the most incorrect way to compare machines. Reason is, you always have two camps, and most have different experiences and applications

BGA Rework Equipment

Electronics Forum | Mon Mar 06 10:02:47 EST 2006 | Mity-C

Just be Careful! We had purchased a Metcal VPI-1000 endoscope. When we began to have problems with the system, I found that Metcal had sold the product. When I asked for the current owner, I was told that could not be disclosed as the official annou

Used Equipment from China

Electronics Forum | Wed Aug 03 10:15:11 EDT 2005 | cyber_wolf

Stefan, Was this machine a Fuji by chance ? Did you buy this machine ? If so why would you or anyone buy a machine sight unseen that is "way overpriced" Just curious.. I have been told by representatives of major SMT machine manufacturers to BEWARE

Vertical fill solder

Electronics Forum | Thu Sep 08 06:19:55 EDT 2005 | lupo

Hello, Could anyone provide some support concern issue with vertical fill of through hole solder. Our lead free wave soldering process is not capable to fill 100% (requirement of our customer)through hole. We made everything (DoE) - different amoun

Reflow Ovens

Electronics Forum | Tue Oct 18 06:04:39 EDT 2005 | Rob

It depends on a number of factors - including as Russ pointed out, complexity (sometimes you need to create very complex profiles if you have large BGAs and other such components, which require at least 7 heated zones), then you have size, required l

SMT tape boards!

Electronics Forum | Tue Oct 25 08:17:12 EDT 2005 | Rob

Also we get data from customers in all forms, and sometimes, just sometimes it doesn't match the current iteration of board, and when you have 600 passives with a combined value $1.50 it can save a huge amount of money & time trying to trace the prob


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