Electronics Forum | Fri Jun 12 07:14:36 EDT 2015 | gabinocf
Thanks by your response, at this moment I have problems in a Lead Free process the issues that i have are solder peaks, by my understanding this conditions is due to lack of flux, bad temperature profile or the dwell time is too long. My concern is,
Electronics Forum | Wed Jan 27 20:18:42 EST 2016 | lordorica
Trying to find a laser marking machine. Thing is that most of my pcbs have white solder mask, so the when trying to read the 2D code is difficult due to the lack of contrast. Any idea? a different technology? regards
Electronics Forum | Fri May 17 07:38:30 EDT 2019 | stephendo
If it happened after a high energy event then maybe the root cause is a lack of TVS diodes in the design of the circuit. Or if they are ceramic diodes then maybe they are too close to the edge and have flex cracks.
Electronics Forum | Fri Aug 02 16:48:22 EDT 2019 | slthomas
Based on the lack of participation by the OP you may very well be right as far as how much time this discussion merits. For all we know he may very well have been looking for one of these:
Electronics Forum | Fri Jun 10 19:02:57 EDT 2022 | llawrence
Yes they are far from ideal. What do you mean by profiling on the problem leads? And yes there is a lack of solder on some, but there are no vias in or near any of the pads that could be stealing solder
Electronics Forum | Mon Nov 14 03:48:18 EST 2022 | frankchan
Maybe also check the air pressure, the lack of air pressure could also sometimes make the head lose grip on the nozzles
Electronics Forum | Mon Jan 03 00:30:30 EST 2011 | raghu
Contact your distributor for the coating or > Humiseal directly. Humiseal has had a recent > issue with batches of 1B31. The specific problem > is lack of adhesion, which is what you have as > well. You need to find out if your batch # is one >
Electronics Forum | Tue May 16 14:11:56 EDT 2000 | Boca
Dave, what's wrong with snorting dross, it's great for the sinuses. What's the dental floss thing? (I lack imagination that MM has) I also appreciate the postings of the Moonster, Dave, and all the rest. Just wanted to ask a couple of inane questi
Electronics Forum | Thu Feb 22 21:01:12 EST 2001 | davef
We don't do this, but if we had to and lacking better advice, for all components I�d dry pack according to J-STD-033, store in a low temperature and humidity controlled environment [maybe using some semicon fab inert storage cabinets], review the eff
Electronics Forum | Fri Jun 15 09:59:29 EDT 2001 | brownsj
We have recently had an incident where we feel that we have received a batch of cards from our assembly house which have by-passed their ICT operation. This has been determined by the lack of any indentations on the test pads from the sprung probes.