Electronics Forum | Wed Nov 14 03:26:38 EST 2012 | spopov
Ryan, in some cases we use 2 pastes with different melting temperature (LF SAC and PbSn)for complex boards with components on two sides. And we want to try to replace LF SAC with low melting paste.
Electronics Forum | Wed Dec 12 11:53:09 EST 2012 | rway
Well, I answered my own question. Here it is for everyone's benefit. The glasses must meet the ANSI Z87.1 standard for safety. So basically, if they are not stamped with Z87.+, then they are not compliant.
Electronics Forum | Thu Sep 13 00:13:43 EDT 2012 | vikings
I recently purchased two used manual pick and place rotary carousel machines. They did not come with any literature and I've searched Google, this forum, and a few others with no luck. Does anybody know where I could find the owners/operator manuals
Electronics Forum | Thu Sep 13 03:10:09 EDT 2012 | weyes
Optimize the pcb assembly layout can enhance the performance of the converter for switch-mode converters, excellent PCB layout is critical to the performance of the best system.If the pcb assembly layout is poorly designed, it may result in the fol
Electronics Forum | Sat Nov 03 11:08:24 EDT 2012 | anvil1021
We have experience with this alloy, but with enig and we did start with PB HASL, none of our PCBs would of course pass thermal cycling at normal temperatures with the HASL so we went to ENIG. we could thermal cycle at 100-115C with no issues. We foun
Electronics Forum | Sat Nov 03 11:20:35 EDT 2012 | davef
EricR: There's substantial information about the properties of solder alloys on the web. Here's an example of something that I clipped from one site Alloy ||Solidus (°C)||Liquidus (C°) ||Tensile Strength (psi / MPa) Sn42 Bi58||-E-||138||8000 / 55.2
Electronics Forum | Thu Nov 15 03:07:35 EST 2012 | nikyta
Thanks for your reply. As already said by Anvil1021, is not a good idea to mix Lead and Bismuth! Stay away from Bismuth if you have even the slightest traces of Lead on yours PCB, stencil, squeegee, spatula, blade, cleaning paper or cleaning cloths,
Electronics Forum | Wed Dec 12 11:35:26 EST 2012 | rway
I work for an electronics manufacture. Our end product is on PCBAs. My question is related to the use of safety glasses, which I know are required when doing rework. But here is the question: We ordered side shields for prescription glasses. Wha
Electronics Forum | Mon Apr 09 20:55:46 EDT 2012 | action_101
I forgot to add that we are using a 3 mil stencil. It seems like to me that may be there isn't enough flux left when we reach liquidous?? About half of the solder spheres do melt and wet on each pad, but the top half of each solder joint is just the
Electronics Forum | Sat Sep 15 00:22:41 EDT 2012 | sarason
The first one I found on Google images. Just a strait search http://www.google.com.au/search?q=Model+SMT-8000&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a Third item down. I used to own a near identical model except tat it h
