Electronics Forum | Fri Jan 24 09:04:54 EST 2003 | russ
How are these connectors and dips oriented? If the leads are parallel as opposed to perpendicular to to the wave this can promote bridging depending on spacing and length. The long leads showing icicling are most likely either inadequate heat OR the
Electronics Forum | Tue Feb 04 08:32:49 EST 2003 | roertner
In my experience AOI's are good for checking machine setup I.E. first piece inspection. After that the only things they will typically catch are wrong parts, reversed parts, missing parts, and tombstones. I would however suggest getting an AOI with a
Electronics Forum | Mon Feb 03 05:02:49 EST 2003 | Eugene
Hi all. One of our customers recently asked us during an audit of our PCBA rework line if we have a limit for the total number of reworks/repairs that can be done on one PCBA. We specify 3x maximum on one location of a major part (LSI for example). B
Electronics Forum | Thu Feb 06 17:16:41 EST 2003 | gregp
I do not know about the cost issues but as I recall the tolerances are tighter on bulk components and this usually means higher cost. I cannot find my bulk feeding summit information but these links give you some idea what was discussed. I don't kn
Electronics Forum | Mon Feb 03 20:23:48 EST 2003 | davef
Use the pad mating to lead wetting area. Check: * Phil Zarrow's site [ http://www.itmconsulting.org ] for a paper. * Bob Willis may have something on his site [ http://www.bobwillis.co.uk ]. He has been very involved in developing this measure. * F
Electronics Forum | Fri Feb 07 16:10:14 EST 2003 | MA/NY DDave
Hi Gee, It seems funny to comment on your own post. I notice that the original poster and a respondent, like me, are striving to create some voiding by design to improve the way this joint will form. NEAT!! I still think that those vias as DaveF p
Electronics Forum | Tue Feb 04 09:03:45 EST 2003 | Russ Roberts
Greetings, I am pretty new to SMT production, and have learned much from this forum. I am getting ready to build a CCA with many 0402 parts that are really close together. I consider these fine pitch. The board also has two QFPS, so my stencil design
Electronics Forum | Fri Feb 07 09:27:07 EST 2003 | davef
For all of the ranting about "sales-types" using the forum inappropriately, it's nice that some of those types get IT. So if you rant when people behaving poorly, then you must praise people when perform well. This is over-due. Hats off to Mike,
Electronics Forum | Tue Feb 11 11:31:52 EST 2003 | Chad
My small R&D company (15 people) is considering the purchase of a bench top reflow oven & associated gear. The reasoning is that it would be nice to have reflow capability for 5 to 50 piece prototype runs in-house. As the only person with any real kn
Electronics Forum | Wed Feb 12 17:41:18 EST 2003 | MA/NY DDave
Hi, Gee David F is as bad or as good as me on a bad day. Boy can I get mad... "new information" Many of these defects have been around so dang long and seem to get recycled as the latest rage and the newest of new information in technical articles
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