Electronics Forum: solder a (Page 882 of 1481)

Re: Flux tanks

Electronics Forum | Fri Nov 05 21:29:56 EST 1999 | chartrain

No matter what type container you use, air in the delivery line will always be a problem. When you pop the lid on a pressurized container, fill it with a liquid and reseal it, air will be present over the liquid. Where do you think it goes?It has to

Re: Qualifying new PWB Vendors

Electronics Forum | Fri Jan 15 16:55:03 EST 1999 | Steve Gregory

Hey Ya' Chrys!! One other thing I can think of when it comes to looking at FAB vendors to rate how good they are, might be something that you may not be too concerned with (depending on the product you build), is their scoring capability. If yo

Re: Qualifying new PWB Vendors

Electronics Forum | Sun Jan 17 19:24:31 EST 1999 | Wayne Bracy

hey Steve Who's brush roller conveyor is that? Wayne | Hey Ya' Chrys!! | | One other thing I can think of when it comes to looking at FAB vendors to rate how good they are, might be something that you may not be too concerned with (dependin

Stencil Thickness

Electronics Forum | Wed Dec 15 18:03:28 EST 2004 | russ

I have used both 4 and 5 mil stencils for 10 mil round apertures. We don't have volume measurement capability but we measure height and the 4 mil appeared to have more paste and better uniformity from a visual standpoint than the 5 mil. The unfortu

Dross Eliminator

Electronics Forum | Mon Aug 14 11:09:09 EDT 2006 | Baer

You can contact Graphic Research and Brad Koor will tell you that his maintenance is actually less. He has been running MS2 for a year and a half (he was the first production beta). His people know how to maintain the process which is not hard but mu

Machine AOI

Electronics Forum | Wed May 23 08:39:37 EDT 2012 | tony_d

Thomas, We evaluated several AOI machines and narrowed the field to two, YESTech and MIRTEC. We had an opportunity to work with both of these machines on our production floor. In our experience, the MIRTEC machine simply outperformed the competitive

Re: BGAs and vapor phase

Electronics Forum | Mon Jul 19 12:37:15 EDT 1999 | Wolfgang Busko

| | | | | Hi, SMTASSY | | | | that�s what we do, soldering our double-sided-finepitch-BGA-and all-the-other-stuff-boards in vapourphase because it�s the only thing we have. | | First, we do not do real series produktion, only prototyping up to som

0603's on 0805 pads

Electronics Forum | Mon Aug 28 17:54:59 EDT 2000 | Steve Thomas

We're trying out 0603 packages on some 0805 footprints (at this stage only on some test boards) since our vendor tells us the 0805's are going to be getting harder to get, and more expensive to pay for. I understand the IPC footprint for the two is

Re: Shear Testing

Electronics Forum | Mon Jun 07 11:21:38 EDT 1999 | Brian Wycoff

| | I need to perform shear tests on components that have been glued prior to wave soldering. Can any one recommend a shear tester and some standardized info on testing? We have had problems with poor glue bonds and would like to implement a test m

Re: Loading leadless parts(passives)by hand

Electronics Forum | Thu Mar 04 12:44:01 EST 1999 | SMTASSY

Hi, For hand placement you should see about 150-200 ppm of errors (solder, placement, values etc) on a board populated of types such as 1206, 0805, SOT, Tantalum etc. . As for solely wrong components (component at wrong location) you can usualy redu


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