Electronics Forum | Thu Jun 14 06:13:47 EDT 2012 | ccgooi
I am running a product with board size ~18"X16". I faced stencil aperture positional accuracy issue which slightly shifted at both end of stencil at positive and negative in X direction thus causing solder paste to pad mis-registration. Due to this s
Electronics Forum | Thu Jul 12 11:56:20 EDT 2012 | hegemon
You might try to complete all your soldering within a 72 hour or less time frame. For all intents treat your board like a moisture sensitive component after you have baked and completed SMT reflow. Wash, blow dry, and go direct to stuffing and com
Electronics Forum | Fri Nov 02 09:09:56 EDT 2012 | davef
Sure you can use it it with leaded HASL. Recognize that ... * Your Sn42/Bi58 will no linger be Sn42/Bi58 * Your leaded HASL will no longer be the same leaded HASL that walked in the door to your plant * Lead from HASL coatings can diffuse through the
Electronics Forum | Mon Nov 12 19:02:48 EST 2012 | jmartens1978
My first attempt was similiar to that. It was a straight ground trace running past the circular pads that were recieving the shocks. It was hit and miss when the arcs would occur. When I cut notches in the trace so the ground line had a point next to
Electronics Forum | Fri Nov 23 06:34:43 EST 2012 | bandjwet
With all of the various techniques available for LGA rework including but not limited to: Bumping the part using a polyimide stencil http://www.solder.net/products/stencilmate Bumping the part using a metal fixture or http://www.finetech.de/advance
Electronics Forum | Tue Jan 08 09:23:18 EST 2013 | lock_2002
This is a question regarding soldermask between pins of fine pitch devices. The majority of our production designs end up with at least 2-3 mils of copper thickness on the external layers due to blind vias, wrap plating requirements, etc. Our curre
Electronics Forum | Fri Feb 22 13:19:54 EST 2013 | caurbach
Our new Soltec Delta 3 has this feature (they call it mainwave pushup) where you can add up to 60 rpm to the pump after the leading edge passes over the wave. Unfortunately, our old Delta Wave doesn't have this feature. Ideally we'd like to set it
Electronics Forum | Mon Apr 29 13:56:19 EDT 2013 | williamaxler
We have a Versaflow 40/50 and ours is setup like this. We have out nozzle test position set so that in the Z axis you are 3.8mm away from the pin. Used feeler gauge Then you can set your gradient per nozzle. Start with a number then do a wave offs
Electronics Forum | Sat May 18 15:19:55 EDT 2013 | isd_jwendell
OK, I've now read all of the documents you referenced. The problem still remains regarding the thermal vias and how to minimize scavenging. All the docs acknowledge top and bottom tenting, and it's problems. TI says don't do it. Plugging is usually n
Electronics Forum | Mon May 27 15:11:25 EDT 2013 | ericrr
Interesting, I could not find anything via a website search some of the links came up as 404, others a "home" page and some never went at all (or took too long) So I turned to google and found http://www.smtinfo.net/docs/tombstoning.pdf a 16 page a
A US manufacturer of quality hand tools for those engaged in the repair, rework, R & D, testing, and assembly of electronic components and printed circuit boards from Through Hole to 2Mil Pitch Surface Mount.
98 Elm St.
Portland, ME USA
Phone: 1-207-775-6139
