Electronics Forum: solder spotting (Page 1 of 28)

solder strength

Electronics Forum | Fri Sep 09 05:07:12 EDT 2005 | Rob

Strange that - whenever we take on a new customer & agree to work together in a spirit of partnership they invariably try returning all of their old failures, often with our labels hastily re-stuck over them. We often change the copper ever so sli

solder paste

Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef

Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c

Problem with solder joints in wave solder

Electronics Forum | Tue Jan 21 13:51:19 EST 2014 | rgduval

Armando, Is the problem in the same spot on the board with every run? If so, there might be something about that particular location that is part of the cause (ie. ground or power plane connection). It sounds like you're seeing blow holes, or insu

expired solder paste

Electronics Forum | Fri Apr 04 01:39:21 EDT 2008 | slthomas

All of what Dave says is spot on. I suspect that the most likely corresponding defects on your assemblies would be poor wetting and insufficient solder.

ive solder profiles

Electronics Forum | Tue Jul 29 12:51:40 EDT 2008 | grics

I am having some problems with some of my pcbs at ive solder. We are using an ersa versaflow. It has an automated spot/spray fluxer (Interflux Pacific 2009M) , 1 preheat stage, a leaded pot/nozzel, and finally a lead-free pot/nozzel. Nozzels move, b

Laser selective solder machine

Electronics Forum | Fri Apr 22 11:21:42 EDT 2005 | HUH

There are several types of lasers to do laser soldering. Panasonic also has a high intensity light that can solder as well. I've tried em' all and two over whelming things stand out when it comes to this type of soldering. #1 is preheat. It seems

solder paste measurement machine

Electronics Forum | Fri Apr 27 10:33:58 EDT 2007 | ck_the_flip

Jeremy, well said! Thanks for "validating" my theory... LOL I agree that the sampling frequency, AND methodology are key things with 3D inspection. 3D will give you some insight onto how your paste (rheology, viscosity, thixotropy)AND process are

solder paste measurement machine

Electronics Forum | Fri Apr 27 11:24:53 EDT 2007 | realchunks

Hi Steve-O, Good question(s). This process was set-up by an engineer that had a PhD in statistics, took him a year to develop and then thru it over the wall at us. The biggest problem we saw was SPC to measure solder volume. SPC is good for measu

expired solder paste

Electronics Forum | Fri Apr 04 08:49:45 EDT 2008 | ck_the_flip

Define "expired" though... 1 week? 6 weeks? 1 month? 6 months? Unrefrigerated life is generally 30 days. If paste has been stored refrigerated at manufacturer recommended temperatures, what would you guys do, like say, if you owned your own shop

wave soldering and solder bridge

Electronics Forum | Mon Dec 17 10:46:04 EST 2007 | realchunks

First of all, more info is needed. Solder shorts can be caused by much more than flux. Is the solder short always in the same spot or all over the place? More detail please.

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