Electronics Forum | Tue Aug 10 15:07:41 EDT 2004 | jbabson1
This could also be caused by a bad PD. What vision are you using for the Resistor Networks? I am assuming the you are talking about small flat packs about 3.3mm x 1.6mm? I use vision type 12 and just use the body size. (wide view). And 100% cam speed
Electronics Forum | Tue Aug 03 15:23:56 EDT 2004 | tberkey
thanks for your response. I have a couple of reasons for evaluating this. 1) We recently purchased an ionograph to replace an outdate Omega meter. Correlation is required and in discussing this with several people, most wondered why we checked if we
Electronics Forum | Tue Aug 03 22:49:19 EDT 2004 | celldude
SSD can be used on both sides of the pcb. Although , it is not very logical to use it on the bottom side of a pcb that has numrerous Through-hole components, that are to be wave soldered. There are many advantages to SSD. The amount of solder is much
Electronics Forum | Tue Aug 03 23:01:14 EDT 2004 | celldude
I have heard the reason it has not caught on is because the SSD machine used i nthe process is very expensive, and there is only a few in the U.S. The company i work for has our own SSD Machine. We SSD 75% of our boards we build, and found it is much
Electronics Forum | Fri Aug 06 10:04:25 EDT 2004 | AJ
Celldude, What kind of parts do you use for SSD? More specifically does your company use 0402, 0201, BGA's, etc? Also are the results of using SSD better than the normal process of applying soder paste? Also if anyone else uses SSD, what are your ex
Electronics Forum | Mon Aug 09 16:22:17 EDT 2004 | AJ
Thank you all for replying and helping me out. Obviously there is much more information to be found on this technology. Before I leave for school I will post all the info (links to articles and other bits of info) I have gathered on SSD, for you guys
Electronics Forum | Wed Aug 04 00:22:17 EDT 2004 | Shean Dalton
and one more thought about your original question, if the flux does look really strange and out of place, then inspect the reflow oven. A great amount of flux condensation in the reflow oven's cooling zone can cause crystalized flux to become airbor
Electronics Forum | Wed Aug 04 16:46:40 EDT 2004 | davef
We assume this is different discussion that the discussion about "crystallized flux under BGA". Correct? Milky residue with water washing makes us think "noclean flux res that just got washed". We know what you said, but we can't help ourselves.
Electronics Forum | Mon Aug 09 17:02:32 EDT 2004 | arminski
Hi Shean, Thanks for the analysis. "Your product looks like it may have non-solder-mask-defined pads." Yes. It is a NSMD PCB. "Does there appear to be any residues on the bare boards, and/or, BGA components prior to applying the solder paste?"
Electronics Forum | Wed Aug 04 10:20:13 EDT 2004 | santech
I am looking for an inexpensive way to mark pcb's. Anyone out there got any ideas? I need to print out 2-5 characters on an array of 40-60 boards. currently using silk screens and an old screen printer, but I can see that in no time I will have ov
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