Electronics Forum | Fri Aug 17 09:35:15 EDT 2007 | karenp
We usually do Solder reworks, and some components that cannot be installed by SMT Machines or Wave solder due to specs or the technology in our company... aur work methods and instruction are always based on designators and are more illustrated to ca
Electronics Forum | Tue Aug 28 06:17:11 EDT 2007 | jgrootkoerkamp
I have problems with blowholes during the wave soldering process. I already find out that the stock time between reflow and wave is the most important. The longer the boards are in stock the more blowholes we have. We don't have a climat controlled
Electronics Forum | Wed Sep 05 08:23:24 EDT 2007 | realchunks
Hi Lloyd (did I just stutter?), While I do love Steve's response, I must add that solder is not a very strong metal. And technically, it's sole purpose is to provide an electrical connection. It's a bad choice for mechanical connections, yet every
Electronics Forum | Wed Sep 05 11:39:59 EDT 2007 | realchunks
LOL! Well I do make the BIG bucks - 8.5 by 11 in size, but our Hi-Scope is the same one Abe Lincoln used in the Civil War. It's old, but does the job. I've had my share of Q.E.s using every thing imaginable to mechanically test the solder. Althou
Electronics Forum | Fri Oct 12 14:13:30 EDT 2007 | stepheniii
If I need a lawyer I'll look you up. To get into that kind of detail you will have to look at the legislation itself in question. And I"m sure if there were any such loophole it would be plugged by now. But we had a customer that found something l
Electronics Forum | Tue Oct 16 08:09:39 EDT 2007 | davef
In the fine SMTnet Archives, grantp gave the following response to a similar question: KIC supplies a free-downloadable software that "takes your profile data and recommends the best oven temperature settings and conveyer speed for your oven. The so
Electronics Forum | Tue Nov 20 12:31:12 EST 2007 | kelz
In my past experience, having via's under or attached to SMD lands produces risk. Solder will not consistently wick the same if it is being drawn into a via. This has also caused issues from solder wetting through the via to the other side causing a
Electronics Forum | Wed Nov 21 15:02:46 EST 2007 | jlawson
From info I have been told from design standpoint, via in pads helps with managing EMC issues with working design, in particular for high speed digital/dense populated type PCB's. We had a manufacturing customer that had very low yield because of th
Electronics Forum | Thu Nov 08 10:26:12 EST 2007 | slthomas
"1/2 of the paste volume is lost from the flux and carriers being removed during the reflow." Don't forget the intersticial space between your solder spheres that you lose during reflow. Not being of an engineering background I couldn't begin to a
Electronics Forum | Sat Nov 10 22:45:06 EST 2007 | realchunks
1. What is the body size? Who cares. 2. What is the pitch? Doesn't amtter. 3. What is the terminal size? Doesn't matter 4. What is the land pattern size? Really doesn't matter. 5. The Thermal square pad in the middle, with how many vias? If you
